I just posted this in my other thread Information on charging the note, but that thread is really lengthy and I thought this was worth mentioning in its own thread for anyone who might be looking for a good car charger, but doesn't want to read 8 pages of other information.
I had been looking for good one, and started with the motorola charger that I've seen recommended a few times. It's cheap, nicely made, and does have the data pins shorted, but for me, it didn't meet my needs because when using GPS in the car. With the screen on, the phone actually discharged and did not charge. It discharged at about 6% per hour. This is not surprising because when measured, it does not put out the max current that the note can accept (it puts out about 850mA of charging current via my measurements).This charger, on the other hand, puts out the max charging current your note can take (1000mA). I have verified this. When using GPS with the screen on, on my note at least, it actually charges the phone at a rate of ~3%/hour instead of discharging. It will even charge the phone if you are using GPS + screen on + also streaming music (ie pandora). That 150mA difference may not seem like much, but for me, it's the difference between discharging or actually charging the phone while using GPS.
A couple of notes... this charger does not come with a cable, so you'll need a generic usb type a to mirco usb cable. Nothing special is needed in the cable... you can get a "charge only" or a data version, any cable will be fine. Amazon has some very inexpensive ones with low shipping costs if you search. There are two ports on the charger, clearly marked on the charger itself, a 1A port and a 2A port. The 2A port will NOT charge your note at the AC charge rate as the data pins are not shorted -- it will charge at 500mA, and your phone WILL discharge instead of charge if you are using this port with GPS, etc. So ignore the 2A port unless you have an iDevice you want to charge with it. The 1A port, however, WILL charge your note at the AC charge rate, and DOES put out the rated 1A. This is the port you want to be using for your Note.
So, if anyone is looking for a good charger for the car, that's it. The only negative thing I have to say about it (so far) is that it is a little bit wobbly once seated in the cigarette lighter. Not enough to come out or cause any problems or anything, but enough to be annoying (to me). Nothing a little electrical tape (or any tape) can't fix quickly and easily, though, if it bothers you enough.
pj_rage said:
I just posted this in my other thread Information on charging the note, but that thread is really lengthy and I thought this was worth mentioning in its own thread for anyone who might be looking for a good car charger, but doesn't want to read 8 pages of other information.
I had been looking for good one, and started with the motorola charger that I've seen recommended a few times. It's cheap, nicely made, and does have the data pins shorted, but for me, it didn't meet my needs because when using GPS in the car. With the screen on, the phone actually discharged and did not charge. It discharged at about 6% per hour. This is not surprising because when measured, it does not put out the max current that the note can accept (it puts out about 850mA of charging current via my measurements).This charger, on the other hand, puts out the max charging current your note can take (1000mA). I have verified this. When using GPS with the screen on, on my note at least, it actually charges the phone at a rate of ~3%/hour instead of discharging. It will even charge the phone if you are using GPS + screen on + also streaming music (ie pandora). That 150mA difference may not seem like much, but for me, it's the difference between discharging or actually charging the phone while using GPS.
A couple of notes... this charger does not come with a cable, so you'll need a generic usb type a to mirco usb cable. Nothing special is needed in the cable... you can get a "charge only" or a data version, any cable will be fine. Amazon has some very inexpensive ones with low shipping costs if you search. There are two ports on the charger, clearly marked on the charger itself, a 1A port and a 2A port. The 2A port will NOT charge your note at the AC charge rate as the data pins are not shorted -- it will charge at 500mA, and your phone WILL discharge instead of charge if you are using this port with GPS, etc. So ignore the 2A port unless you have an iDevice you want to charge with it. The 1A port, however, WILL charge your note at the AC charge rate, and DOES put out the rated 1A. This is the port you want to be using for your Note.
So, if anyone is looking for a good charger for the car, that's it. The only negative thing I have to say about it (so far) is that it is a little bit wobbly once seated in the cigarette lighter. Not enough to come out or cause any problems or anything, but enough to be annoying (to me). Nothing a little electrical tape (or any tape) can't fix quickly and easily, though, if it bothers you enough.
Click to expand...
Click to collapse
i purchased the car dock made specifically for this phone from samsung and it is awesome. phone snaps right into place, dock has a connector built in and comes with a charger. Suction cup has never fell off the window and the whole thing is very sturdy. the note looks awesome mounted in the truck above the in dash navigation and works great with ford sync
Personally I like the Motorola Chargers as they have a nice wound cord, although they only charge one device.
http://www.amazon.com/Motorola-Vehicle-Adapter-micro-USB-Charger/dp/B000S5Q9CA
khaytsus said:
Personally I like the Motorola Chargers as they have a nice wound cord, although they only charge one device.
http://www.amazon.com/Motorola-Vehicle-Adapter-micro-USB-Charger/dp/B000S5Q9CA
Click to expand...
Click to collapse
That is the other charger I was talking about that is not nearly as good as the one I'm suggesting. With that charger, if you use GPS while the screen is on, your battery will discharge instead of charge. Even without GPS or the screen on, in the best case scenario, it will still charge slower than the one I've recommended. If you're OK with that, then yes I suppose it's an OK charger. It's cheap, looks pretty cool, and seems well built. But for my needs for a charger, I need a) the fastest charger available, and b) for a car charger, I need one that lets me use the GPS on my phone without losing battery life. That's why I searched and found the one I'm recommending.
I personally hate the wound cord because it puts tension on the phone if you try to use it beyond the wound range (which I almost always seem to do), but that's a totally personal preference. The cord is always fighting me when I'm typing on my phone while driving (Not that I do that )
pj_rage said:
That is the other charger I was talking about that is not nearly as good as the one I'm suggesting. With that charger, if you use GPS while the screen is on, your battery will discharge instead of charge. Even without GPS or the screen on, in the best case scenario, it will still charge slower than the one I've recommended. If you're OK with that, then yes I suppose it's an OK charger. It's cheap, looks pretty cool, and seems well built. But for my needs for a charger, I need a) the fastest charger available, and b) for a car charger, I need one that lets me use the GPS on my phone without losing battery life. That's why I searched and found the one I'm recommending.
I personally hate the wound cord because it puts tension on the phone if you try to use it beyond the wound range (which I almost always seem to do), but that's a totally personal preference. The cord is always fighting me when I'm typing on my phone while driving (Not that I do that )
Click to expand...
Click to collapse
WHAT? Nonsense. First off, the phone is not going to draw more than 1A, and that is a 1A charger. Second, with the big screen on this thing at high power with GPS it's not too surprising if it just maintains its current charge, but in my week of owning my Note I know it does charge while it's on it, and my Nexus One charged on it just fine.
And the cord is very long, not sure where you're plugging your phone in..
OP said he tested the Motorola charger and it only put out 850mA, not 1A. Another poster in a different thread mentioned that his phone still discharged while using that specific car charger as well. So with heavy use it looks like it is possible for the phone to still discharge with the Motorola charger.
Thanks for the info. Had a Verizon car charger for my defunct droid razr and wasn't giving out enough juice to keep the Note running. Heck, it wasn't even able to keep the droid running.
Will look into the ones mentioned here.
Sent from my SGH-I717R using XDA
khaytsus said:
WHAT? Nonsense. First off, the phone is not going to draw more than 1A, and that is a 1A charger. Second, with the big screen on this thing at high power with GPS it's not too surprising if it just maintains its current charge, but in my week of owning my Note I know it does charge while it's on it, and my Nexus One charged on it just fine.
And the cord is very long, not sure where you're plugging your phone in..
Click to expand...
Click to collapse
I'm not saying the the phone is drawing more than 1A. I'm saying that the motorola charger does not provide the full 950mA it claims (only provides 850mA), and this one I'm recommeding DOES put out the full 1A it claims. Either way, though, there's one thing I know for sure: the one I've recommended above charges faster than the motorola one, and allows your phone to charge in some scenarios where the motorola one does not. It is a better charger, from the aspect of actually charging the phone. The motorola charger might be fine for a lot of people. 850mA is still a good rate of charge, but unfortunately is just shy of being able to maintain or actually increase the state of charge of your note's battery under a common (for a lot of people) scenario in the car -- using the GPS with the screen on. If, however, the motorola charger is working perfectly for you, that's great. I don't care if you buy the other charger or not, I have no affiliation with the company or amazon or anything, I'm just providing the data so everyone can make an informed decision.
The wound cord thing is totally personal preference, I'm not gonna argue that one way or another.
khaytsus said:
Personally I like the Motorola Chargers as they have a nice wound cord, although they only charge one device.
http://www.amazon.com/Motorola-Vehicle-Adapter-micro-USB-Charger/dp/B000S5Q9CA
Click to expand...
Click to collapse
Yes, I use this one...for making sure my Note is charged whilst using the Note's GPS on my motorcycle.
Works great!!
Since I already have a power inverter I'm going to get the Blackberry Premium 1.8A charger for my note. Even though I carry 2 extra OEM batteries I still need all the power I can get.
just_visiting said:
Since I already have a power inverter I'm going to get the Blackberry Premium 1.8A charger for my note. Even though I carry 2 extra OEM batteries I still need all the power I can get.
Click to expand...
Click to collapse
Just FYI I cannot confirm that this charger has the data lines shorted, so you may not charge at the full ac charge rate. Just because it says 1.8A doesn't mean anything. If it does not short the data lines, it will charge at 500mA (half the rate of the OEM AC charger), whether it's rated at 1A, 1.8A, or 1,000,000A.. Sorry if you already knew this, I just don't want any more people getting confused thinking that as long as the charger says it's rated at 1A+ that they will be charging at the full 1A. This is not the case with our Notes (or most/all? Samsung phones). No charger can or will charge faster than your OEM charger, unless your OEM charger is defective. The speed can only be matched, not exceeded.
Here's a scenario using the Motorola charger that is baffling me. I agree with the OP...using my Note with GPS and playing mp3 music at the same time does discharge the oem battery at a slow rate. But if I follow the same scenario, but use a cheap Hyperion 2600mah battery in place of the Samsung oem battery, it actually charges during use! Not fast, only about 3% an hour, but that beats a discharge situation! Why is this?
Sent from my SAMSUNG-SGH-I717 1.8ghz using xda premium
Great informative post OP! Thanks! I was actually looking into this yesterday and your post is exactly correct. I currently have two Motorola chargers and yup, the Note discharges when using the GPS. I was looking into a new charger and ordered the exact same one you mentioned (in white).
What is surprising to me though is how you mentioned the 2A plug will not output the proper amp, so I have to use the 1A port instead? Do you know why they made it this way? It is just weird how they designed it.
Thanks!
pj_rage said:
I just posted this in my other thread Information on charging the note, but that thread is really lengthy and I thought this was worth mentioning in its own thread for anyone who might be looking for a good car charger, but doesn't want to read 8 pages of other information.
I had been looking for good one, and started with the motorola charger that I've seen recommended a few times. It's cheap, nicely made, and does have the data pins shorted, but for me, it didn't meet my needs because when using GPS in the car. With the screen on, the phone actually discharged and did not charge. It discharged at about 6% per hour. This is not surprising because when measured, it does not put out the max current that the note can accept (it puts out about 850mA of charging current via my measurements).This charger, on the other hand, puts out the max charging current your note can take (1000mA). I have verified this. When using GPS with the screen on, on my note at least, it actually charges the phone at a rate of ~3%/hour instead of discharging. It will even charge the phone if you are using GPS + screen on + also streaming music (ie pandora). That 150mA difference may not seem like much, but for me, it's the difference between discharging or actually charging the phone while using GPS.
A couple of notes... this charger does not come with a cable, so you'll need a generic usb type a to mirco usb cable. Nothing special is needed in the cable... you can get a "charge only" or a data version, any cable will be fine. Amazon has some very inexpensive ones with low shipping costs if you search. There are two ports on the charger, clearly marked on the charger itself, a 1A port and a 2A port. The 2A port will NOT charge your note at the AC charge rate as the data pins are not shorted -- it will charge at 500mA, and your phone WILL discharge instead of charge if you are using this port with GPS, etc. So ignore the 2A port unless you have an iDevice you want to charge with it. The 1A port, however, WILL charge your note at the AC charge rate, and DOES put out the rated 1A. This is the port you want to be using for your Note.
So, if anyone is looking for a good charger for the car, that's it. The only negative thing I have to say about it (so far) is that it is a little bit wobbly once seated in the cigarette lighter. Not enough to come out or cause any problems or anything, but enough to be annoying (to me). Nothing a little electrical tape (or any tape) can't fix quickly and easily, though, if it bothers you enough.
Click to expand...
Click to collapse
pj_rage said:
Just FYI I cannot confirm that this charger has the data lines shorted, so you may not charge at the full ac charge rate. Just because it says 1.8A doesn't mean anything. If it does not short the data lines, it will charge at 500mA (half the rate of the OEM AC charger), whether it's rated at 1A, 1.8A, or 1,000,000A.. Sorry if you already knew this, I just don't want any more people getting confused thinking that as long as the charger says it's rated at 1A+ that they will be charging at the full 1A. This is not the case with our Notes (or most/all? Samsung phones). No charger can or will charge faster than your OEM charger, unless your OEM charger is defective. The speed can only be matched, not exceeded.
Click to expand...
Click to collapse
Yes I already know this. I can always return the charger if it does not work properly. Also last night, I tested an OEM HTC charger that came with my older HTC Desire Z and it outputs exactly as the OEM Samsung Note charger. I used your command line in Terminal Emulator.
Got it today. Wow it charges fast.
Sent from my SAMSUNG-SGH-I717 using xda premium
OK I was wrong it does not charge faster. It actually allowed my battery to drain at about 1% per 4 minutes, during driving. I DID NOT USE PORT 1A. Will try 1A tomorrow.
the AC charge rate as the data pins are not shorted -- it will charge at 500mA, and your phone WILL discharge instead of charge if you are using this port with GPS, etc. So ignore the 2A port unless you have an iDevice you want to charge with it. The 1A port, however, WILL charge your note at the AC charge rate, and DOES put out the rated 1A. This is the port you want to be using for your Note.
Click to expand...
Click to collapse
Not shorted charger
StarLog said:
Got it today. Wow it charges fast.
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
What did you get? The motorola one or the Blackberry? Link please.
Thanks for this. Will be ordering the PowerGen. Just got back from a trip to Chicago from Ohio and left with 100% and arrived with 70%. Figured the charger just wasnt putting out enough power.
Now I just need a good adjustable windshield mount that will accept my phone with a case on it!
Sent from my rooted and OC'd SAMSUNG-SGH-I717 using XDA
I just got this one: http://www.amazon.com/Satechi-Lighter-Converter-BlackBerry-Playbook/dp/B004X71HXU
It comes with a adapter that shorts the pins to enable rapid charge.
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Even with GPS running my battery is fully charged when driving to work. I ordered a couple extra adapters from the Satechi website to throw in my laptop bag to rapid charge over the USB 3.0 port and one for my wife's car. Now she can rapid charge her captivate with the high current car charger finally.
Sent magically through the air from the mighty Note!
Thanks I just bought this.
kimocal said:
I just got this one: http://www.amazon.com/Satechi-Lighter-Converter-BlackBerry-Playbook/dp/B004X71HXU
It comes with a adapter that shorts the pins to enable rapid charge.
Even with GPS running my battery is fully charged when driving to work. I ordered a couple extra adapters from the Satechi website to throw in my laptop bag to rapid charge over the USB 3.0 port and one for my wife's car. Now she can rapid charge her captivate with the high current car charger finally.
Sent magically through the air from the mighty Note!
Click to expand...
Click to collapse
keplenk said:
What did you get? The motorola one or the Blackberry? Link please.
Click to expand...
Click to collapse
Sorry for the delay, I wanted to verify it. Look at previous post, edited.
Not 500ma charger
Related
This post is not meant to ask a question, but to answer some. Hopefully it will help someone. It might get lengthy, so if you're not into reading it all, scroll to the bottom for the cliff notes.
Like many others I've seen here and around the web, I was having trouble with my Note charging really slow. It only seemed to charge at a reasonable rate with the stock charger that shipped with it (~3 hours 0 to 100). I didn't expect much out of my PC USB ports because they are only 500mA max (as are most), but I have several 1A USB chargers that I used to use with my iphone without a noticeable problem. Being that they are 1A just as the samsung stock charger is, I was baffled as to why they would not charge at the same rate. I even tried my wife's ipad charger which is 2A and that did not make any difference, it was just as slow as my (non samsung) 1A chargers. It did not matter which cable I used, from the stock samsung one that shipped with the Note to a number of other ones I have.
I finally had had it and after searching all over and not finding any answers other than people's anecdotal stories about what works for them, and deciding that way too much of that was just placebo (ie people saying the ipad charger charged faster, and I know it does not). I cut one of my charger cables (USB type A male to micro USB male) open, and did a few experiments with my multimeter to determine the current levels for my various chargers under various scenarios.
I tested 4 different chargers. The black samsung charger that came with the phone, a white iphone one that is a cube like the samsung one, also 1A max, a stock 2A ipad charger, and an external 5000mAh USB charging battery pack that puts out 750mA max.
I had heard that the data+ and data- pins needed to be shorted on samsung phones in order to charge properly, so I tested the charging current with these pins shorted, with these pins connected straight through (as is a normal charging cable), and with these pins open (5V power and ground only).
Here are the results:
Black stock samsung charger (1A):
-Data lines connected straight through, which is essentially just a completely normal data/charge USB type A to USB micro cable = 960mA.
-Data lines not connected, open on both ends, only USB power 5V and ground connected = 440mA.
-*Modified cable* so that the data lines on the micro USB side (phone side) shorted = 960mA.
White iphone 1A charger:
-Data lines connected straight through (stock cable) = 440mA.
-Data lines open, not connected on either end = 440mA.
-*Modified cable* so that data lines on the micro USB side shorted = 900-910mA with phone screen on, 850mA with phone screen off. I assume that what might have been happening here is that the charge current was just going up when the phone was drawing more current because the screen was lit up. I don't think it was actually affecting charge speed, it was just maintaining the same charge but providing more power so that the screen could stay lit without affecting the charging rate. I don't know why it was doing this though because the stock samsung charger did not do this.
-iPad 2A charger:
-Data lines connected straight through (stock cable) = 440mA.
-Data lines open on both ends = 440mA.
-*Modified cable* so that data lines shorted on phone micro USB side = 860mA whent he screen was on, 780mA screen off. Note that I'm surprised this did not go up to the same as the samsung stock charger or even as high as the 1A iphone charger. I don't know why? It is a genuine apple iPad charger that claims 10W which is 2A at 5V. As far as why it might have different currents for screen off and on, read my comments above for the white iphone charger that did the same thing.
External 5000mAh battery USB charger (750mA max claimed output):
-Data lines connected straight through (stock cable) = 440mA.
-Data lines open on both ends = 440mA.
-*Modified cable* so that data lines shorted on phone micro USB side = 760mA phone screen on, 700mA phone screen off.
So that's all the data. As you can see, it is very important that the USB data+ and data- lines are shorted together in order to charge at a fast rate. The problem is that all normal usb data/charge cables, including the stock samsung cable that came with the Note, do not have these pins shorted, so it is up to the charger itself to short these pins if it is to put out its max current to charge the Note. Obviously the stock samsung charger has them shorted, because it charges at a fast rate with a normal cable. But none of my other chargers, including the iphone and ipad charger, have these pins shorted, so the only way these other chargers I have will charge at their max current capability is by using a modified cable (which I made) that shorts the data+ and data- pins. Using this modified cable allows me to use any charger, and charge at its max output. Note that if you also make a cable that has these pins shorted, don't mistake it for a normal cable and try to plug it in to a computer or anything that plans to use the data lines as this could potentially damage that device.
Unfortunately at this time I do not have any recommendations for cables to buy that have the data+ and data- pins shorted, but I can recommend buying one from amazon for $1.50 and doing it yourself if you're capable, but again, be careful not to use it for anything but charging from a "dumb" AC (or car) charger. I do not take responsibility for any damage you might do to your charger or other equipment!!!!
Also unfortunately, I do not have any recommendations for chargers which definitely have the data lines shorted in order to charge quickly. I have another charger or two that I can test, but don't have them with me now. I would imagine that all samsung chargers will have the appropriate pins shorted and will charge at their max capacity. I doubt the Note (without modifications) can charge any faster than ~960mA, though, so you're spinning your wheels using a 2A charger, and in the case of something like the iPad charger, at least the genuine apple one I have, with a normal cable, it actually does not charge even half as fast as the stock samsung charger, and even with a modified cable that shorts the data lines, it's still not as fast as the stock charger, although it's pretty close (probably wouldn't notice much difference in real usage unless you really measured your charge time). I'm hoping to order a few more chargers to test, in hopes of finding a cheap aftermarket one that we can use with our Notes that already has the pins shorted.
*Cliff notes* -- I physically measured the output current during charging of my SGH-I717 AT&T Note for a few different USB chargers I have, and discovered that all of them (that I personally have) except the stock samsung charger do not have the data+ and data- lines shorted, which means that you'll be charging at 440mA of current, regardless of the rating of your USB charger. This is less than half the current of the stock samsung charger, meaning it will take more than twice as long to charge your phone. In fact, if you're using you're phone during charging, there's a good chance that not only will it not charge, but it will actually drain the battery a little bit, because 440mA is barely enough to run the phone (depending on what you're doing). So while you think you're charging with the same charger because it's rated at 1A or even 2A, chances are you actually are only charging at 440mA, the same as from a USB computer port, and it is going to take a realllly long time to charge compared to your stock samsung charger. Bottom line, use the stock samsung charger until we can test a few different chargers and compile a list of ones that have the data lines shorted so that they can charge your Note at their full current capability.
Hopefully this is helpful to answer some of the questions about why the Note seems to be charging slow for some people and not for others. I imagine that there are some USB chargers out there that have the data lines shorted and others that do not. Until I can get my hands on a few more (I'm going to order a couple different ones from amazon) and test them, I don't have any recommendations for now other than to use your stock charger, and most likely any genuine samsung replacement charger rated at 1A or more (though it probably will not use more).
wow! Thanks for investigating this!
This wad good info bruh.....thanks for the time u took man.
Sent from my SAMSUNG-SGH-I717 using xda premium
Wow that is pure science....
As I'be been posting everywhere, fast chargers short the middle 2 pins. The phone sees this and determines it's a "wall charger". I always recommend the Motorola car charger as it's confirmed to have shorted data pins, or short them yourself with a dab of solder within the cable. Don't use it for data though. Won't hurt, but won't work!
Edit: fantastic work though, thanks for taking the time!
Sent from my SAMSUNG-SGH-I717 using xda premium
Thanks for the tip on the motorola charger having the pins shorted. Is this the one you're talking about?
http://www.amazon.com/gp/product/B0...&pf_rd_t=101&pf_rd_p=470938811&pf_rd_i=507846
Here's my dilemma. I used the stock Samsung cable with a 2.1A rated adapter from TomTom (rapid charge) as it was said it might be the pin configuration and lost more charge than using the same adapter with a universal Belkin mini USB cable with a micro adapter. My issue is that while using the GPS and streaming music, the phone loses charge while on the charger!
This is not acceptable.
Sent from my SAMSUNG-SGH-I717 using XDA App
Yes. Thats the one they elude to. Ebay has them for $7.59 with free shipping.
Sent from my SAMSUNG-SGH-I717 using XDA App
Thanks for all that - very helpful. I was planning to try the iPad charger (mentioned it in another thread) but time got away from me. This is great information to have.
dakleenupman said:
Here's my dilemma. I used the stock Samsung cable with a 2.1A rated adapter from TomTom (rapid charge) as it was said it might be the pin configuration and lost more charge than using the same adapter with a universal Belkin mini USB cable with a micro adapter. My issue is that while using the GPS and streaming music, the phone loses charge while on the charger!
This is not acceptable.
Sent from my SAMSUNG-SGH-I717 using XDA App
Click to expand...
Click to collapse
The stock cable does not have the data pins shorted, the actual AC wall adapter does.
Sent from my SAMSUNG Galaxy Note
Thanks pj_rage.
I'm pretty good electrically, but a bit less so with google. I searched, and likely didn't use the right string (happens pretty often with me). Got a diagram or a link to a diagram so I can see which two pins need shorting?
Makes more sense to me to go and modify all my car chargers rather than modify cables. I'll never use a car charger to transfer data to a computer, but might use a cable in a car in a pinch if I needed to.
So if I were to use the home adapter with stock cable hooked up to a power inverter While in my car, I should expect the 960mAh output then?
Sent from my SAMSUNG-SGH-I717 using XDA App
dakleenupman said:
So if I were to use the home adapter with stock cable hooked up to a power inverter While in my car, I should expect the 960mAh output then?
Sent from my SAMSUNG-SGH-I717 using XDA App
Click to expand...
Click to collapse
That should work, but kinda overkill. It's less cumbersome to either modify a dedicated cable or the car charger itself. Just short circuit the two middle pins.
Thanks for the research OP. Btw are you on AVS?
Sent from my SAMSUNG-SGH-I717 using XDA App
pj_rage said:
Thanks for the tip on the motorola charger having the pins shorted. Is this the one you're talking about?
http://www.amazon.com/gp/product/B0...&pf_rd_t=101&pf_rd_p=470938811&pf_rd_i=507846
Click to expand...
Click to collapse
That's the one
Sent from my SAMSUNG-SGH-I717 using xda premium
Think the problem is people are not allowing their phones to drain before placing back on charger. My first out of box battery was about 40% didn't charge it till it was about 5-7% left. 2nd day I charged it to 100% which took about 3.5 hrs and than let it drain to about 20% before I put it back on the charger. 3rd day let it drop to 15% battery and placed on charger again. I've had my phone for almost 4 days and so far no problems, battery last 18-20 hrs on avg. Just my input I guess.
Sent from my SAMSUNG-SGH-I717 using xda premium
dakleenupman said:
So if I were to use the home adapter with stock cable hooked up to a power inverter While in my car, I should expect the 960mAh output then?
Sent from my SAMSUNG-SGH-I717 using XDA App
Click to expand...
Click to collapse
I've also seen issues with other phones when charging off a inverters with random reboots, some charge, some don't etc.
Envy Diz said:
Think the problem is people are not allowing their phones to drain before placing back on charger. My first out of box battery was about 40% didn't charge it till it was about 5-7% left. 2nd day I charged it to 100% which took about 3.5 hrs and than let it drain to about 20% before I put it back on the charger. 3rd day let it drop to 15% battery and placed on charger again. I've had my phone for almost 4 days and so far no problems, battery last 18-20 hrs on avg. Just my input I guess.
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
Lithium ion batteries don't work that way, and actually, they prefer short, fast charges. Android, on the other hand, seems to like a full cycle or two to calibrate its battery stats, but that might just be a myth.
Sent from my SAMSUNG-SGH-I717 using xda premium
slow charge
I too have been troubled with poor battery life and slow charge. Here is what I have experienced:
I charge mine overnight for 9 hours. Every day I take the phone off the charger and I notice it is at 98%. Then I struggle to get through the day.
One day I switched phones in the evening, so the Note was left on the charger for 12 hours. When I took it off next morning, it said 100%. Low and behold... I was left with about 20% more at the end of a typical use day. Does this meen that the 2% extra charge makes that much difference?
I too have tried all of the different high amp chargers with all of the same results.
I guess I was just trying to understand with the OEM charger where the "shorting takes place.
nm3th said:
That should work, but kinda overkill. It's less cumbersome to either modify a dedicated cable or the car charger itself. Just short circuit the two middle pins.
Thanks for the research OP. Btw are you on AVS?
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Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I717 using XDA App
over2land said:
Thanks pj_rage.
I'm pretty good electrically, but a bit less so with google. I searched, and likely didn't use the right string (happens pretty often with me). Got a diagram or a link to a diagram so I can see which two pins need shorting?
Makes more sense to me to go and modify all my car chargers rather than modify cables. I'll never use a car charger to transfer data to a computer, but might use a cable in a car in a pinch if I needed to.
Click to expand...
Click to collapse
I don't have a link to a diagram (you can just Google USB pinout if you want it). I can try to find one later if you still need it. You want the two data lines shorted together. If you cut the cable in half as I did, you only need to short them on the phone side. The other side you can leave open if you want.
But you're absolutely right it would probably be a better idea to short the pins on the charger side. My issue is that my chargers are not easily opened. The cable on the other hand is a quick mod.
If I did it again I would just shave off some insulation from the cable to access the wires without cutting them, leave the power connected, and just cut and short the two data lines on the phone side and tape or heat shrink it up. Fwiw the power lines on my cable were red and black, black being ground, and the data lines were yellow and green. I believe this is standard but I should advise you that it would be prudent to beep it out to the connectors to be certain.
Regarding using an inverter and your home charger in your car, yes this would give you the best charge rate. Supposedly the linked Motorola charger has the pins shorted which would be a less cumbersome setup to provide the same or very similar charging rate. I've ordered one, so I'll report back.
And yeah I'm on AVS as well, same username.
Sent from my SAMSUNG-SGH-I717 using XDA App
I'm looking for an external battery charger (preferably solar powered) for taking my Note on backpacking trips. Unfortunately, most of the solar packs that I've found have only .5 - .7 amps available for USB output. If I'm using a 1amp charging cable (with the data leads shorted), will .7 amps kick in the AC charging speed? Is .5 amps enough to charge the phone while I sleep for 7 hours?
I suppose it depends on how long you are out without power but another alternative is an external battery that allows you to charge your phone by plugging it into the external battery.
This one here (at $75 USD) will let you charge the Note from completely dead to a full complete charge 4.4 times.
http://www.amazon.com/New-Trent-IMP...Z64Q/ref=sr_1_2?ie=UTF8&qid=1336084828&sr=8-2
So, if you started your backpacking with a full charge on both the phone and the battery pack, and assuming you charge the phone every night at say 20% battery left, you should get 6 days. If you need more than that, you can just buy a second battery pack (personally, Id want to have two just in case).
That's a good suggestion from littlewierdo. I would also have at least 2 spare batteries for the note. I don't think that .5 amps is enough.
Budge said:
I'm looking for an external battery charger (preferably solar powered) for taking my Note on backpacking trips. Unfortunately, most of the solar packs that I've found have only .5 - .7 amps available for USB output. If I'm using a 1amp charging cable (with the data leads shorted), will .7 amps kick in the AC charging speed? Is .5 amps enough to charge the phone while I sleep for 7 hours?
Click to expand...
Click to collapse
Budge I had an HTC evo 4g and got a 5400mah battery. This worked ok. However the output is .5a which will not charge the note if you are using maps with gps or bluetooth or playing tunes. It wil charge when not using those. Say at night when you are asleep. I think you would have to find a battery with output better than 1a to actually charge when you are actively using your phone. I am not sure of the actual output you would need. I will research it though for my own needs. I do use my note on my motorcyle with a charger which outputs .5a and this is nowhere near what is needed to use google maps and bluetooth and play tunes.
I am actively looking for a solution which will charge my note while using google maps, bluetooth, and playing tunes etc. I may have found a solution with a usb y cable which is connected a 2a source and a .5a source on my motorcycle.
The only solution for backpacking may be to charge when not using the note. I am fairly sure it will charge at .5a when sleeping.
Good luck.
kimtyson said:
That's a good suggestion from littlewierdo. I would also have at least 2 spare batteries for the note. I don't think that .5 amps is enough.
Click to expand...
Click to collapse
imesg said:
I am actively looking for a solution which will charge my note while using google maps, bluetooth, and playing tunes etc. I may have found a solution with a usb y cable which is connected a 2a source and a .5a source on my motorcycle.
Click to expand...
Click to collapse
Im not sure where you got the .5 amps from, it outputs 1 amp, so it will charge the Note with the screen on. However, it wont charge quite as fast as the wall charger will it will actually charge the phone.
It should be able to handle keeping the screen on, bluetooth doesnt use much power at all so playing music shouldnt be an issue and gps uses very little battery as well. I dont see an issue with it.
Admittedly, I dont have one of these, dont really have much of a use for one at the moment but I cant possibly see any issues with this.
HOWEVER, there are alternative external battery packs that are MUCH cheaper with less mah capacity (meaning, in simple speak, you would get less power storage meaning that you wouldnt be able to charge your phone as many times as you might like). There are other USB battery packs that might also have less power output (or more) which might mean that you wouldnt be able to keep the screen on AND charge the phone.
Truth be told, I only looked for the highest capacity battery pack given what your situation was AND I tend to buy higher end if the price makes sense. In the case of battery packs similar to this design (external usb battery packs), they generally start at $30 and go to about $80 so buying the best possible makes sense. However, if the highest/best possible was $200, Id probably get something cheaper, but since its only ~$80, if I were in your shoes, that would be my choice.
Id probably consider getting two of them (that is, if we are talking about longer than 1 week excursions, if under a week, just get 1) and a decently long usb cable (3-4 ft) but not too long (you dont want to be tripping over the cable but you need it long enough that if you need to, you can charge the phone mid-day while hiking).
You dont need multiple batteries for the Note, the whole point of this external battery pack is to eliminate the need for them.
littlewierdo said:
Im not sure where you got the .5 amps from, it outputs 1 amp, so it will charge the Note with the screen on. However, it wont charge quite as fast as the wall charger will it will actually charge the phone.
Click to expand...
Click to collapse
littlewierdo I was not necessarily speaking of the device you suggested but one I had. I was warning Budge to be careful and not get a device which outputs only .5a. I was suggesting that he find one which will put out 2a if such exists. The device which you suggested will put out 1a. However I don't believe this would be enough for my purposes and maybe no Budge's either. i was not refering to your device or you. Not my intent to get in an argument with you but to help Budge find a suitable solution.
link to imp1000 manual:
http://www.google.com/url?sa=t&rct=...sg=AFQjCNFPt8XfUpeSr8olPnKLYCivrRvqFg&cad=rja
Couldn't make the link post as a link. Do a search for 'imp1000 manual'.
Ciao
Littlewierdo- I didn't disagree with your suggestion to use another battery pack to charge the existing battery. In fact, I have one and use that option myself. I was adding that it may be a good idea to have a spare. I was responding to the OP who mentioned .5 amps. I assume that's where imesg was coming from, too.
Note charges faster with Kindle fire's charger. Using white at&t i717 Note
Here is my find and situation. My Note was almost dead it was at 5%. Forgot charger at home and only available charger was from a Kindle Fire. Plugged it in. I know Note takes forever to charge so I thought ok Ill let it charge for about an hour it should put me at around 40%. About an hour later I checked phone and battery charge was at 87%. ???
Didnt believe it at first I thought OK maybe I was seeing sh*t and it really wasnt at 5%. Had to take off so didnt put too much thought into. Next day thought about it and said ok WHAT IF Kindle Fire's charger charges it faster. Completely drained battery til phone shut off. Plugged it in using Kindle's charger turned on Note, turned off data, background data, let it charge for exactly 30 minutes checked charge it was 39%. Unplugged it turned on data, background data and did some heavy usage to drain battery again til phone shut off. Plugged it in using the charger that came with Note, turned it on and again I turned off data/background data. Let it charge for 30 mins checked charge and it was at 14%.
So Im sharing my find and yes Kindle Fire's charger does charge it way faster and Im wondering if anyone else has tried/used the Fire's charger and has had the same result and if using the Fire's charger going to damage battery if I keep using it instead of charger that came with it?
I have used my Kindle Fire's charger since I got my Note. The current rating on the Fire's charger is higher at 1.8a as opposed to the stock 1.0a. However, the Notes charging circuit likely cannot draw 1.8a, the highest I have seen it go with some battery app displaying current was about 1.2a. So yes, it might charge slightly faster. The biggest benefit I see though is the lack of a need for separate chargers.
Sent from my SAMSUNG-SGH-I717 using XDA
I have been using my gtab 10.1 charger. Its rated at 2.0 amps and I can get a full charge from 10% in about 3 hours. Much faster than the 1.0 amp charge wart that came with the note, by about 2.5 hours.
EOS 2.0 @ MZ604 [XDA-HD]
Stock @ SGH-I717R [XDA-Premium]
Pretty sure the Note charges at 1A max. If you're charging faster, it means your other charger isn't providing 1A.
I have seen battery monitor widget display ~1150ma if it was in deep sleep and I quickly check it before it refreshes. It averages about 750ma if I'm using it while charging. This tapers off once it hits 80% or so when the charging tapers off. Battery Monitor Widget does say this is estimated. I would agree that the Note will never draw more than ~1.1a or so.
Sent from my SAMSUNG-SGH-I717 using XDA
arsonizt said:
Note charges faster with Kindle fire's charger. Using white at&t i717 Note
Click to expand...
Click to collapse
Thank you! Makes a huge difference...only thing that was bugging me about the phone was the slow charging...i was about to go crazy.
khaytsus said:
Pretty sure the Note charges at 1A max. If you're charging faster, it means your other charger isn't providing 1A.
Click to expand...
Click to collapse
False. The note can definitely handle more. I have also use a Gtab charger and it usually spiked around 1700mA
I currently use an Asus Transformer charger which is rated at 1.2A. I will say, I get about exactly that. 1281mA posted below
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I've had similar results with my HP TouchPad charger which is rated at 2A.
I use my iPad charger.. 2.1 A... seems faster as well. I hardly ever charge though since I bought the QCell battery charger and two extra batteries, so one is always at 100 percent.
I agree. I have used the Kindle Fire's charger on my note as well and it did charge much faster. I would bet that not all of the Samsung chargers that come with the Note are quality chargers.. The first one that originally came with my note would either charge very slowly, or flat out not charge at all. I would have to un-plug, and plug it back in to the wall a few times to get it to start.
AT$T game me a replacement charger after dealing with it for 2 weeks, and it has begun to have the same issue now after about 2 month use. If I use the SE charger that came with my Xperia X10 (750ma), I actually get a more stable charge than what the 1A Samsung charger gets. Albeit not any faster, but it doesn't just STOP charging out of the blue.
I think I will try buying a tablet charger, and stop using my Note's charger all together.
Does Kindle offer vehicle charger?
¢ via SGH-i717
You don't need a kindle charger to get the higher amp rating, just a higher rated charger. There are several vehicle chargers available that are able to charge at 1A or greater. You will likely want to find one designed for Android devices rather than iOS devices as iOS uses a different method to charge at higher amperage than most Android devices use. There are articles on modifying the charger but if you find a Kindle compatible charger online that may be a good bet.
I've bought both Kensington 2.1A and 3.1A but haven't attempted shorting middle pins or cable as discussed in other threads. I use ProClip mounts in my car, but wife didn't want one in her Highlander (our travel vehicle) so I bought Samsung's mount for Note and it cosistently charges 1.0-1.2A and outpaces GPS' drain
¢ via SGH-i717
slapshot591 said:
False. The note can definitely handle more. I have also use a Gtab charger and it usually spiked around 1700mA
I currently use an Asus Transformer charger which is rated at 1.2A. I will say, I get about exactly that. 1281mA posted below
Click to expand...
Click to collapse
What current measuring widget is that? I use "Current Widget" https://play.google.com/store/apps/details?id=com.manor.currentwidget&hl=en and I have never seen over 1003mA regardless if I use a 1A charger that I shorted D+ to D- on or my Touchpad charger that is capable of 2.1A. I wonder if Current Widget shows charging current and the one you use shows total system current?
mtucker said:
What current measuring widget is that? I use "Current Widget" https://play.google.com/store/apps/details?id=com.manor.currentwidget&hl=en and I have never seen over 1003mA regardless if I use a 1A charger that I shorted D+ to D- on or my Touchpad charger that is capable of 2.1A. I wonder if Current Widget shows charging current and the one you use shows total system current?
Click to expand...
Click to collapse
Using Battery Monitor Widget Pro, I've been using it since launch. It is actually measuring the current usage of the battery, either charging or discharging. I'm using this on an Anker 2700mAh battery and it does charge pretty quickly for me.
arsonizt said:
Note charges faster with Kindle fire's charger. Using white at&t i717 Note
Plugged it in using Kindle's charger turned on Note, turned off data, background data, let it charge for exactly 30 minutes checked charge it was 39%.
Click to expand...
Click to collapse
This would indicate that the power source you are using is between 1.8A and 2A.
Assuming your using the 2500 MaH battery:
1% = 25 MaH
30 minutes charge of 39% = 975 Mah
If this was accomplished in 30 minutes you would do 975 x 2 = 1950 MaH.
Given the above statistics, you would assume your phone was being charged by something with the output of 2A. I would defnitely run the terminal command on this to verify output though..
THANKS TO PJ_RAGE for already doing work on this subject....This is from his post a while back
"cat /sys/class/power_supply/battery/batt_current_adc
The reported number will be the charge current for your charger. Divide the number you receive by 10, and that is the mA. For example, if a USB charger reports "4851", divide by 10 and the charge current is 485.1mA. Note that this only reports charging current -- it cannot report the current drain, and will just report "0" when you try it without a charger connected.
If you're really still curious, you can see what type of charger the phone actually thinks is connected to your phone (ie, whether or not the phone thinks the data lines are shorted) by entering the following instead:
cat /sys/class/power_supply/battery/charging_source
The reported number should be a 0, 1, or 2. 0 = no charger connected, 1 = data lines NOT shorted, USB normal charge, and 2 = data lines ARE shorted, AC fast charge.
mtucker said:
What current measuring widget is that? I use "Current Widget" https://play.google.com/store/apps/details?id=com.manor.currentwidget&hl=en and I have never seen over 1003mA regardless if I use a 1A charger that I shorted D+ to D- on or my Touchpad charger that is capable of 2.1A. I wonder if Current Widget shows charging current and the one you use shows total system current?
Click to expand...
Click to collapse
I assume this widget sleeps if the device is asleep? I had a widget once that updated very 30 seconds and did it ON OR OFF.. ie: The phone was basically always awake because this stupid widget was updating itself every 30s regardless of the circumstances.
That said, my note seems to be awake 80% of the time anyway..
slapshot591 said:
False. The note can definitely handle more. I have also use a Gtab charger and it usually spiked around 1700mA
I currently use an Asus Transformer charger which is rated at 1.2A. I will say, I get about exactly that. 1281mA posted below
Click to expand...
Click to collapse
Is that LunarUI i'm seeing? How/where did you get that theme?
Let me post a few observations of my own as I have worked with LiOn technology through my work since it was invented.
This isn't my first go around with this technology.
One of my past employers actually invented smart LiON technology (successfully suing all the big computer makers for royality payments due to their patents) and my current employer is involved in producing the battery actually used in our specific ATT Note device. Believe it or not. Your choice. It's the truth.
1--Lithium Ion charging current is controlled by battery temperature. If the battery is hot, the device won't ALLOW it to charge rapidly -- if at all. This is for safety reasons. Charge too quickly you reduce life, or risk a rupture. Not good, especially for latter. In most cases, the LiON batteries contain a computer chip and a data bus to communicate back to the device. In other cases, the device simply uses voltage alone to make a rougher determination of what is going on inside in the cell. Since there are a variety of applications available for Android that supply a specific temp for the battery, I suspect the former is true in our case.
2--Lithium Ion charging current is reduced as the cell nears full charge; which is why it slows down when it gets nearly full. Of course, it can slow down when it gets hot. This is why when you plug it in, it may not charge right away. Discharge of the cell produces a temperature increase. Putting it on charge reduces the temp but not right away.
3--the supplied adapter from Samsung is "less than ideal" when the first two conditions allow greater current (charging). Using another adapter works much faster if it has > 1A capacity. I use a iPad (gasp) adapter and it REALLY charges fast with the right cable (my next point).
4--the supplied cable from Samsung (the one that allows it to talk to the computer) is "less than ideal" for charging. Go to the ATT store and buy the $10 USB-Micro USB cable they sell. It will SCREAM in comparision, assuming all of the first 3 conditions listed above are met.
Take this information as you see fit. I don't work for ATT, I'm only sharing my knowledge of the technology, explaining what people are seeing, and providing my recommendations based on my observations. Yes, I have used a jig and an amp meter to confirm all my results -- rather than some software application. I'm not saying the application is bad, just that I can tell you for sure how to tell how much current is being supplied/taken in a circuit. You measure it with an amp meter.. the old fashioned way.
Peace
If you havent read the post above mine, read it first. Very informative and all true. Everything I have to say expands on what was said above.
Ok, this is real simple folks, the USB STANDARDS state that the maximum power output is 2 amps. This means that ANY device that charges off a USB cable WILL charge at a maximum of 2 amps, period. You cannot make the amperage higher than 2 amps. This means there is no point in searching around for a 3 amp charger because the phone will NOT accept anything more than 2 amps and ANYTHING claiming more than 2 amps is simply lying.
Now, having said that, this also does NOT mean that you HAVE to charge at 2 amps, it means that the MAXIMUM amps that can be PROVIDED is 2 amps. The wall charger that comes with the Note is a 1.0 amp charger. This means you can find a different wall charger that outputs 2 amps and effectively HALF your charge time.
The other factor to take into consideration is phone usage. The processor does consume some power when the phone is on. Additionally, Android charges the battery by dumping high current into the battery until its at around 80% and slowly reduces the current as the battery capacity reaches higher levels. So even tho a 2 amp charger should charge the phone in about an hour and a half, it really is closer to two and a half hours.
So the last point I want to make is, it does NOT matter what charger you have, the charging process is completely software controlled. The charger just puts out power at a constant rate. All lithium ion devices have the same charging scheme that has been pretty much standardized. While there are some very minor differences, YOU dont need to worry about the technical side of it, this is what the software was written to handle.
I highly recommend looking at the battery university website and if you can afford it, purchasing their book for the skinny on everything you need to know about batteries and how they work.
+1 for Battery Monitor Widget Pro (by 3C). Its an expensive app at around $4 but gives you EVERYTHING you could possibly want to know about what is going on with your phones power including drain, charge rate, current battery condition, VERY detailed logging, HIGHLY customizable widget, etc. Just look at the screenshots in the appstore (make sure you are looking for the one by 3C as there are several apps with the same name). Oh, and did I mention, it uses less than 1% of battery power per charge cycle to monitor all of this?
System Tuner Pro by 3C is also very nice.
When ever I drive, I have my phone hooked up to my Escort Red Line radar detector and my car's stereo via bluetooth (both). In order for me to use the radar detector effective, I need to have GPS and Blueooth enabled. This is a HUGE SUPER OMG battery drainer for my amaze. 20 minutes drive kills about 35% of the phone's power. My radar detector offers a slot to charge my phone BUT it still drains, not enough juice flowing in. Someone said it is because it's probably a .5amp.
So I am running a extension from the 12v lighter that's in the trunk to the front of my car. Amazon has a generic 2.1amp for 3 bucks.
http://www.amazon.com/Premium-Heavy...121&sr=8-1&keywords=htc+amaze+car+charger+amp
But on ebay, I found the original HTC car charger for 15 bucks which is a 1amp.
http://www.ebay.com/itm/HTC-Amaze-4...918506?pt=PDA_Accessories&hash=item27c867022a
What do you guys recommend? My logic says go for the 2.1amp, the phone will draw as much as it needs from it.
The 1amp.
Anything higher you'll damage the phone or the battery.
A wall plug power supply or a usb supply is 5.0v/1amp.
The 2.1 amp is probably 1 amp per port. Although it does not seem to specify.
F9zSlavik said:
What do you guys recommend? My logic says go for the 2.1amp, the phone will draw as much as it needs from it.
Click to expand...
Click to collapse
Right!:good:
---------- Post added at 09:23 AM ---------- Previous post was at 08:41 AM ----------
soundping said:
The 1amp.
Anything higher you'll damage the phone or the battery.
A wall plug power supply or a usb supply is 5.0v/1amp.
Click to expand...
Click to collapse
That means a higher capacity battery (more current NOT MORE VOLTAGE) will damage the phone?!!!!
Totally wrong!
A higher current will not damage the phone. A higher voltage will do it!
Please do not mix the current with voltage!
Voltage is same 5 Volts (±5%) for these “USB like” applications (1A or 2.1A power supply our case )They use USB socket/connector but usually only pin 1 and 4 (+ and-)
Regular computer USB port can supply max 0.5-0.9 A depending on version.
For battery charging devices the current can go to 5A.
Higher voltage will trip a warning window telling you to disconnect and use official HTC equipment.
The phone monitors input voltage to protect the equipment.
nyc_tdi said:
That means a higher capacity battery (more current NOT MORE VOLTAGE) will damage the phone?!!!!
Totally wrong!
A higher current will not damage the phone. A higher voltage will do it!
Please do not mix the current with voltage!
Voltage is same 5 Volts (±5%) for these “USB like” applications (1A or 2.1A power supply our case )They use USB socket/connector but usually only pin 1 and 4 (+ and-)
Regular computer USB port can supply max 0.5-0.9 A depending on version.
For battery charging devices the current can go to 5A.
Click to expand...
Click to collapse
and to add to that... unless you take the charger apart and short pins 2 and 3, it will only ever draw 500mA, as it assumes that it is hooked up to a regular powered USB port... I have bought multiple car charger usb adapters, and I have taken all of them apart and soldered the 2nd and 3rd pins together... otherwise charge time = forever, and sometimes it won't even charge if you have wifi or data/gps/bluetooth all going at once...
I recently got an Amaze and am generally happy with it. The biggest problem I have right now is finding the right car charger for it because the car charger I previously used (a 1A monoprice car charger) doesn't give it enough charge. I have been reading through the forums and some has been saying that if the charger is not working properly, it will recognize it as charging via USB rather than AC. In my case, the phone seems to be reading it as charging through AC, but there still doesn't seem to be enough current going through it. The phone will only charge if NOTHING is going on (i.e. screen's off, no GPS, etc.). I've been using CoPilot GPS and it draws the battery like crazy. Anyone has any idea as to which car charger would work properly with the Amaze such that I'll be able to charge (or at least maintain the charge) while using it as a GPS? Do I need to go up to a 2.1A charger?
I would look for a 4-5 star rated 2.1a car charger on Amazon.
Just read through the comments and feedback and you'll find one that's right for you.
I prefer the USB charger base itself and then using the OEM cable that came with the Amaze.
It seems to charge faster with that cable, at least to me anyway.
Remember though if it's rated 2.1a but has two USB slots that 2.1a will be cut in half if used to charge two different devices.
Hope this helps.
I couldve sworn we talked about this months ago. Let me see if I can find the thread.
nguyendqh said:
I would look for a 4-5 star rated 2.1a car charger on Amazon.
Just read through the comments and feedback and you'll find one that's right for you.
I prefer the USB charger base itself and then using the OEM cable that came with the Amaze.
It seems to charge faster with that cable, at least to me anyway.
Remember though if it's rated 2.1a but has two USB slots that 2.1a will be cut in half if used to charge two different devices.
Hope this helps.
Click to expand...
Click to collapse
you won't get the full 2.1a unless you usee a charge only cable or modify the charger as I stated above...
I ended up getting a 2.1A car charger and a USB charge only cable, and it's working perfectly. When I have the screen on full brightness and doing navigation with Co-Pilot GPS, my phone's no longer losing charge and is actually charging. The combo also works with my tablet as well.
blast0id said:
and to add to that... unless you take the charger apart and short pins 2 and 3, it will only ever draw 500mA, as it assumes that it is hooked up to a regular powered USB port... I have bought multiple car charger usb adapters, and I have taken all of them apart and soldered the 2nd and 3rd pins together... otherwise charge time = forever, and sometimes it won't even charge if you have wifi or data/gps/bluetooth all going at once...
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This is damn helpful! So THAT is why when driving and using gps or whatnot I would always lose more battery even on charger.. So basically I can just solder the middle 2 pins together to trick it into thinking it is being powered like a home charger? No chance it will hurt anything I assume?
Silentbtdeadly said:
This is damn helpful! So THAT is why when driving and using gps or whatnot I would always lose more battery even on charger.. So basically I can just solder the middle 2 pins together to trick it into thinking it is being powered like a home charger? No chance it will hurt anything I assume?
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I have done this to every single one of my USB car chargers... not a single issue...
Hi all,
When I use the charger that came with the HTC One my phone charges great, rapid.
But when I use any other charger that I have in my home/office it charges very slow. Even with a 2.1 amp charger!
The charger that comes with the phone has an output of 1 amp.
I've tried multiple other chargers (1 amp and 2.1 amp) and they all trickle charge.
Anyone else noticing this?
Thanks
Joe
I'm using old charges at home and in the office and it did seems slow but had not heard of rapid charge. Will the phone indicate this rapid charge mode? If not, is it real?
I'm getting slow charging even on the stock HTC charger. Not sure how I can enable this rapid charge cause 4+ hours from 0-1% to full is a bit ridiculous.
use orginal charger is best , maybe it has some relationship with your battery life
If anyone is coming from phones with smaller batteries, remember the larger the capacity the long it takes to charge.
I use the cable and charger from my Nexus 7 and it charges fast. Off my USB it is slow.
Real AC chargers have two pins shorted. You can hack a USB to micro USB cable and short the same two pins to enable AC charging with any adapter, wall, USB, or car. Should be pins 3+4, but don't hold me to that.
Sent from my HTC One using xda app-developers app
flooty333 said:
Hi all,
When I use the charger that came with the HTC One my phone charges great, rapid.
But when I use any other charger that I have in my home/office it charges very slow. Even with a 2.1 amp charger!
The charger that comes with the phone has an output of 1 amp.
I've tried multiple other chargers (1 amp and 2.1 amp) and they all trickle charge.
Anyone else noticing this?
Thanks
Joe
Click to expand...
Click to collapse
Try to change your phone
c5satellite2 said:
Real AC chargers have two pins shorted. You can hack a USB to micro USB cable and short the same two pins to enable AC charging with any adapter, wall, USB, or car. Should be pins 3+4, but don't hold me to that.
Sent from my HTC One using xda app-developers app
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i've done exactly this, and damned if the One still refuses to draw more than ~500 ma off of anything but the 2.1 A wallwart it came with (i don't have any others to try with). i'm about to dig out an old inverter to see if that will actually work. wish i'd paid more attention to my EE dad when i lived at home; i've gotten a serious crash course in this stuff while trying to get my One to charge in my car, when it's on.
edit: so i got my old inverter out, and spent about 15 minutes testing. i used the 2.0A adapter that came with my Nexus 7 to test, as well as the 3.1A Mediabridge adapter i got here. my phone was at about 45% when i started testing. unplugged, Battery Monitor Widget reported a drain of anywhere between 500ma and 650ma (running Ingress, wifi on). plugged in to the Mediabridge adapter showed, at best, a drain of 50ma. the Nexus adapter plugged in to my inverter charged at a fairly consistent ~120ma. i didn't touch my phone the entire time.
i left my Nexus 7 at work so i can't use it to repeat the test, but i will do so tomorrow. the cable i'm using is this one. i'm not crazy about having a ridiculous DC-AC inverter in my car for my phone, but if that's what i have to do so it can be used and not drain, then so be it. admittedly, i don't really understand these things enough to explain these variations, but i plan on learning ASAP. perhaps somebody else can shed some light on why the device charges different, and how it identifies an AC-USB adapter vs a DC-USB adapter.
sluflyer06 said:
If anyone is coming from phones with smaller batteries, remember the larger the capacity the long it takes to charge.
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Click to collapse
Math doesn't support what is happening though. Phone has a 2300mAh battery. The OEM charger outputs 1A (1000mAh)
At most, it should be around 3 hours for full charge, when in fact it is closer to 4-4.5 hours. It's the last 10% that is the issue, it will trickle charge to 100% rather than rapid charge.
nest75068 said:
Math doesn't support what is happening though. Phone has a 2300mAh battery. The OEM charger outputs 1A (1000mAh)
At most, it should be around 3 hours for full charge, when in fact it is closer to 4-4.5 hours. It's the last 10% that is the issue, it will trickle charge to 100% rather than rapid charge.
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Yes, I think that's exactly what the HTC does... I read a pretty good article recently about Li-Ion batteries that talks about how trickle charging is the best for battery life, and it wouldn't surprise me if HTC got a little aggressive the way the this phone charges since we can't swap the battery ourselves.
I'm trying one last car charger, which matches the wattage of my Nexus 7's 5Vdc/2A AC adapter (which I've had the best luck with, when charging the phone while in use): http://www.amazon.com/gp/product/B009TBF7IG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
If that doesn't work, I'm going to put a 300W inverter in my car with the AC adapters themselves and stop buying stinking DC adapters. This phone clearly pays very close attention to the wattage available from whatever it's plugged in to.
veener79 said:
I use the cable and charger from my Nexus 7 and it charges fast. Off my USB it is slow.
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Same here, 2a Nexus 7 brick with a long Logitech USB cable, much faster than stock (and longer)
Harbinger1080 said:
Yes, I think that's exactly what the HTC does... I read a pretty good article recently about Li-Ion batteries that talks about how trickle charging is the best for battery life, and it wouldn't surprise me if HTC got a little aggressive the way the this phone charges since we can't swap the battery ourselves.
I'm trying one last car charger, which matches the wattage of my Nexus 7's 5Vdc/2A AC adapter (which I've had the best luck with, when charging the phone while in use): http://www.amazon.com/gp/product/B009TBF7IG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
If that doesn't work, I'm going to put a 300W inverter in my car with the AC adapters themselves and stop buying stinking DC adapters. This phone clearly pays very close attention to the wattage available from whatever it's plugged in to.
Click to expand...
Click to collapse
I'm fortunate my car has a built in inverter that I use for charging my phone.
nest75068 said:
I'm fortunate my car has a built in inverter that I use for charging my phone.
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My next car will too, because I can only imagine that power requirements for these devices is going to increase.
That said, I think I have a winner, and instead of retyping my posts, I'll just link to that thread instead: http://forum.xda-developers.com/showpost.php?p=41797839&postcount=6
Since the snap Dragon 600 has fast charging capabilities, why didn't HTC Include it in the kernel??? I've noticed my 2500 mAh note battery charges faster than my 2300 MAH HTC one
Sent from the Sexiest Android Device (HTC One)