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.
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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?
Sent from my SAMSUNG-SGH-I717 using XDA App
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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
Related
I noticed a lot of people want a fast charger for the Note. This charger is for the Touchpad. I have this and it works really well. It charges faster than the OEM charger that came with the Note.
Not to mention, it is on sale right now for less than $5. Go grab one. From past experience, I used this at 15% battery life and charged for an hour and I was back over to 80%.:victory:
http://www.shopping.hp.com/en_US/ho.../FB341AA?HP-TouchPad-Power-Charger&aoid=35252
Is the usb cable that comes with it the same as the note takes?they don't show a pic of the other end and is it a charge only cable?If yes and yes I'm a gonna get one.Thanks
technut said:
Is the usb cable that comes with it the same as the note takes?they don't show a pic of the other end and is it a charge only cable?If yes and yes I'm a gonna get one.Thanks
Click to expand...
Click to collapse
Yes, it is a micro USB cable. One end is USB and other is micro USB. The cable length is longer than most phone cables. I haven't measured it, but from my plug to my desk, I still have excess cable compared to the original one from the phone.
Thank you, getting one!
This have been discussed hundreds time before....
That 1amp is the output of the charger which forwards the current to kernel of the device... NOTE can only intake 1 amp current... ( remove your battery and read the dam sticker :thumbup
Even though you will supply 2 3 4 5 amp... The maximum in would be 1 amp ONLY...
SECONDLY, micro usb cables have a restriction of carrying current... They cannot pass more than 1 amp current successfully... Therefore galaxy tab series does not come with micro usb slots....
Lastly my recommendation would be NOT to waste money on any other chargers...
Noted by the BEAST!!
dx.varun said:
This have been discussed hundreds time before....
That 1amp is the output of the charger which forwards the current to kernel of the device... NOTE can only intake 1 amp current... ( remove your battery and read the dam sticker :thumbup
Even though you will supply 2 3 4 5 amp... The maximum in would be 1 amp ONLY...
SECONDLY, micro usb cables have a restriction of carrying current... They cannot pass more than 1 amp current successfully... Therefore galaxy tab series does not come with micro usb slots....
Lastly my recommendation would be NOT to waste money on any other chargers...
Noted by the BEAST!!
Click to expand...
Click to collapse
It has been discussed, but it DOES charge faster than a conventional 1amp charger. If you don't have the charger and have nothing to compare with, then I don't think you can say it does not work.
Go check FCC about the charge. Also, the cables provided DOES carry a 2amp charge. Our note can handle fast charging but throttles down to a slower charging rate after 80%.
having a micro usb slot or not have a micro usb slot has nothing to do with the current it can handle.
Ipads and Iphones have the same connector but yet one has a 1amp charger and the other a 2amp charger.
deliriousbb said:
It has been discussed, but it DOES charge faster than a conventional 1amp charger. If you don't have the charger and have nothing to compare with, then I don't think you can say it does not work.
Go check FCC about the charge. Also, the cables provided DOES carry a 2amp charge. Our note can handle fast charging but throttles down to a slower charging rate after 80%.
having a micro usb slot or not have a micro usb slot has nothing to do with the current it can handle.
Ipads and Iphones have the same connector but yet one has a 1amp charger and the other a 2amp charger.
Click to expand...
Click to collapse
Firstly, I have tried to use with a 2amp charger that came with my SGT P1000.. NO DIFFERENCE...
SECONDLY, PULL OUT BATTERY AND READ!
Google for micro usb cable max output... You will get your answers...
Noted by the BEAST!!
dx.varun said:
This have been discussed hundreds time before....
That 1amp is the output of the charger which forwards the current to kernel of the device... NOTE can only intake 1 amp current... ( remove your battery and read the dam sticker :thumbup
Even though you will supply 2 3 4 5 amp... The maximum in would be 1 amp ONLY...
SECONDLY, micro usb cables have a restriction of carrying current... They cannot pass more than 1 amp current successfully... Therefore galaxy tab series does not come with micro usb slots....
Lastly my recommendation would be NOT to waste money on any other chargers...
Noted by the BEAST!!
Click to expand...
Click to collapse
deliriousbb said:
It has been discussed, but it DOES charge faster than a conventional 1amp charger. If you don't have the charger and have nothing to compare with, then I don't think you can say it does not work.
Go check FCC about the charge. Also, the cables provided DOES carry a 2amp charge. Our note can handle fast charging but throttles down to a slower charging rate after 80%.
having a micro usb slot or not have a micro usb slot has nothing to do with the current it can handle.
Ipads and Iphones have the same connector but yet one has a 1amp charger and the other a 2amp charger.
Click to expand...
Click to collapse
Well its $5, which is not worth this discussion, I'll gladly give this money even for the stock samsung charger.
i_max2k2 said:
Well its $5, which is not worth this discussion, I'll gladly give this money even for the stock samsung charger.
Click to expand...
Click to collapse
Agreed! A good charger for cheap.
dx.varun said:
Firstly, I have tried to use with a 2amp charger that came with my SGT P1000.. NO DIFFERENCE...
SECONDLY, PULL OUT BATTERY AND READ!
Google for micro usb cable max output... You will get your answers...
Noted by the BEAST!!
Click to expand...
Click to collapse
You don't have to get your panties in a twist. Rather than just read forums and assume the worst of everything try it for yourself. I've tried both and it is faster. Just trying to help my fellow Note users to get the best out of their phones.
btw, what are you screaming about pull out the battery and read? you tell me what you want us to know. RATED: 3.7V; 1500mA... WOW ok that proves your point...sigh:silly:
dx.varun said:
This have been discussed hundreds time before....
That 1amp is the output of the charger which forwards the current to kernel of the device... NOTE can only intake 1 amp current... ( remove your battery and read the dam sticker :thumbup
Even though you will supply 2 3 4 5 amp... The maximum in would be 1 amp ONLY...
SECONDLY, micro usb cables have a restriction of carrying current... They cannot pass more than 1 amp current successfully... Therefore galaxy tab series does not come with micro usb slots....
Lastly my recommendation would be NOT to waste money on any other chargers...
Noted by the BEAST!!
Click to expand...
Click to collapse
As an HP TouchPad owner, I can confirm that the cable provided with the charger are 'special'. My TP will not charge with any other MicroUSB cable connected to the official charger, the same cables which won't charge the TP will charge the Note. (I also own the HP touchstone dock, which the TP spends most of it's life sitting on.)
deliriousbb said:
It has been discussed, but it DOES charge faster than a conventional 1amp charger.
Click to expand...
Click to collapse
I have four different wall chargers, including two of this HP barrel adapter (one that came with the TouchPad, one that came with the Touchstone). With the supplied cable, it does charge the TouchPad very quickly. From webOS, the net charge rate is about 1.6 A with the screen on, so probably close to 2 A coming out the USB port.
However, when you plug a Note into this charger, the Note will still only draw 1 A. I have other AC chargers that are also able to supply 1 A to the Note, so in that respect this HP charger isn't anything special. However, it is only $5, which is a good deal.
---------- Post added at 11:39 PM ---------- Previous post was at 11:14 PM ----------
pTeronaut said:
My TP will not charge with any other MicroUSB cable connected to the official charger, the same cables which won't charge the TP will charge the Note.
Click to expand...
Click to collapse
I've found that the microUSB cable that comes with the Note, when paired with the HP TouchPad's AC charger, will supply 2 A. At least, that's what the OS reports: /sys/devices/platform/usb_gadget/current-mA shows "2000". Plugging the TouchPad into the Note's AC charger shows a value of "900". Plugging it into my laptop's USB port drops that value down to "500", as expected.
I bought two a week ago off Amazon for $10 each. $5 each with free shipping is a steal. I picked up three more. Thanks for posting this deal. I get 1A charging with either the stock charger or TP charger. I like to have a few extra chargers to sprinkle around at home or work (for my Note and the other devices I own that charge off USB.... including a TP).
deliriousbb said:
Yes, it is a micro USB cable. One end is USB and other is micro USB. The cable length is longer than most phone cables. I haven't measured it, but from my plug to my desk, I still have excess cable compared to the original one from the phone.
Click to expand...
Click to collapse
When you charge your phone using this HP microUSB cable, do you have issue with NO DEEP SLEEP when unplugging the Note from the charger?
There has been issues reported in XDA where, depending on the USB cables used to charge the Note (connected to computer OR power charger), if you unplug the Note, it will not go DEEP SLEEP, causing significant power drain.
This does NOT happen when the Note is charged using the cable that came with the Note.
Download Current Widget from the play store. Add widget to home screen and you will realize that your phone is not charging any more than 1 amp as designed.
Try the usb out from your pc and you will see about half an amp.
Sent from my SAMSUNG-SGH-I717 using xda premium
I have the galaxy tab brick charger the HP touch pad charger and my note charging brick....the touchpad charger works faster...but I feel like it doesn't get fully charged..seems to die faster?. I used the galaxy tab brick...slow to charge warms my phone up nicely...I'd stick with the original note charger.
Sent from my SAMSUNG-SGH-I717 using xda premium
lanwarrior said:
When you charge your phone using this HP microUSB cable, do you have issue with NO DEEP SLEEP when unplugging the Note from the charger?
There has been issues reported in XDA where, depending on the USB cables used to charge the Note (connected to computer OR power charger), if you unplug the Note, it will not go DEEP SLEEP, causing significant power drain.
This does NOT happen when the Note is charged using the cable that came with the Note.
Click to expand...
Click to collapse
I charge my Note overnight using my Touchpad's MicroUSB cable plugged into the Samsung charger, and I don't experience any difference in power drain.
Where is that post from the guy who put all these petty arguments to rest with scientific tests of all the various options and results??
Good lord people it's a charger for a phone .. no need to get so heated!
(unlike my stock charger.. which gets very heated!)
great price!!!
ordered 3 of them
the price is way cheaper than just a single micro usb cable shipped from other stores
i have 3 already
1 at work, 2 for home.
definitely faster than OEM. I charge overnight, no issues. had for around 5-6 months now. and i can use the phone while charging.
fact is that it DOES charge faster.
i recommend it
WOW***
Great price I bought 2!
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...
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
I have done this to every single one of my USB car chargers... not a single issue...
Seems ever since I updated to the latest OTA update, if I plug my phone in on certain chargers I get a notification stating slow charging enabled please connect to your factory charger. Anyone else having this issue?
It seems to do it on any charger or 12volt car to USB adapter capable of outputting 2 to 2.1 amps
Stock ROM, rooted, unlocked, s-off
Sent from my HTC6435LVW using Tapatalk 2
Slow Charge Message
arisch86 said:
Seems ever since I updated to the latest OTA update, if I plug my phone in on certain chargers I get a notification stating slow charging enabled please connect to your factory charger. Anyone else having this issue?
It seems to do it on any charger or 12volt car to USB adapter capable of outputting 2 to 2.1 amps
Stock ROM, rooted, unlocked, s-off
Sent from my HTC6435LVW using Tapatalk 2
Click to expand...
Click to collapse
Same here. Glad to hear it is not just me. I just got off with NA HTC Tech Support. There official stance is that they do not recommend or support using any device other than the official charging cable and plug in device. They went as far to say that they do not support charging in the car. I just about flipped my lid on the phone.
Here is the link to their site: http://www.htc.com/us/support/howto...783&p_name=droid-dna-by-htc-(verizon-wireless)
"Only the power adapter and USB cable provided in the box must be used to charge the battery"
I was told by Verizon that this was just a scare tactic, while HTC says I am not getting the right charge and they have no answer since they do not support DC charging in the car. Any info people have is appreciated. It works fine with Hard Wired DC -MicroUSB, but not with any USB Plug in.
Any apps that would help me measure the amount of charge it is getting?
Thanks in advance.
What are the specs on your car charger?
Sent from my HTC6435LVW using Xparent Red Tapatalk 2
So odd that they would do that, especially with the power draw of the phone. However you can charge using the battery packs?
My car adapter is a Macally USB car adapter model carusb10 output 5v/2.1 amp x1 500mA x2.
As for my house adapters the RCA 2 port USB wall adapter. 2.1 Amp x 1 or 1000mA x 2 I believe.
Sent from my HTC6435LVW using Tapatalk 2
Everyone with a stock DNA unplug your charger and flip it around. As in flip the prongs. It should give you this message even with the HTC supplied one. Or try this. When you use another charger and it gives you that message unplug it and flip it. It should straighten out. I dunno. Something about the way the power is drawn.
xcesivemastub8ah said:
Everyone with a stock DNA unplug your charger and flip it around. As in flip the prongs. It should give you this message even with the HTC supplied one. Or try this. When you use another charger and it gives you that message unplug it and flip it. It should straighten out. I dunno. Something about the way the power is drawn.
Click to expand...
Click to collapse
I have tried several different USB adaptors, from Razorfish(BestBuy), Belkin single USB input 2.1amp, innocell (RadioShack) dual SUB 3.1amp. Same problem on all.
On the other hand, any direct Wall connection with USB cable attached seems to work fine.
Also, I have the Motorola p4000 battery backup and when I plug that in, it also works fine and views it as AC.
Swapping the pins didn't work for me, same issue. Its a pita for me especially charging in the car because when using phone for navigation it charges so slow that it can't actually charge my phone and my battery decreases. I've went the route in the car I use my nexus 7 charger connected to an inverter.
Sent from my HTC6435LVW using Tapatalk 2
From my phone conversation with Seth from HTC Support, the slow charging warning is due to the update because the update incorporates the faster charging feature that qualcomm & htc have referenced too recently (can't remember what its actually called). The phone has a new type of charging setup that makes it charge faster than some other phones.
Unfortunately some chargers (wall/car) dont supply enough voltage to activate the charging feature so while the phone does charge fine (it charges at standard phone charge rate) it cannot charge at the faster rate due to the charger.
He states that this will not harm the phone and ther phone will charge fine and it a normal time. You can disregard the warning. For those that like the faster charge rate, you have to use the right charger/cable.
Before the update our phones were mostly charging at the slower rate and that's why most didn't see a warning unless the cable being used was below the standard rate of charge.
Hope this helps
arisch86 said:
Seems ever since I updated to the latest OTA update, if I plug my phone in on certain chargers I get a notification stating slow charging enabled please connect to your factory charger. Anyone else having this issue?
It seems to do it on any charger or 12volt car to USB adapter capable of outputting 2 to 2.1 amps
Stock ROM, rooted, unlocked, s-off
Sent from my HTC6435LVW using Tapatalk 2
Click to expand...
Click to collapse
Why are there so many problems about this thing lately even me, I experience this most of the time
When I use the Best Buy 2.1 amp wall charger I still get the message.
I'll need to find my oem wall charger.
So far every one I have gives this message.
I haven't seen this message at all on any of my charges but I haven't charged in the car yet. My battery usually lasts for more than the while day so I just charge at night.
Sent from my HTC6435LVW using xda app-developers app
Well with the faster charging enabled it does charge pretty quick especially using my nexus 7 wall adapter, even with my Nokia Qi pad. But man that last percent takes a while.
As of now I'm using supercharged hatka ROM slim 3.0.3 and getting good battery life. Even in the middle of nowhere where 75% percent of the time when I'm in the plant its searching for signal. I'll leave work after 8 hours and still be at 60%
Guess you can say its the only negative I have for the phone. Trust me the battery life is much better in the plant then my old bionic. I use to have to change the standard battery after 4 or 5 hours as it was completely dead.
Sent from my HTC6435LVW using Tapatalk 2
Last night I received my daughters replacement Rezound from the warranty company. It came with a 1 amp wall charger.
I plugged it into my DNA and did not get the notice of slower charging and it charged quicker than I've ever seen it.
Too bad my 2.1 best buy one won't.
The quick charge capable chargers must output just slightly higher voltage to trigger the rapid charge mode.
I'll experiment some day and see.
This is a known issue. It all comes down to there being no set standard for USB charging. Android, apple, tablets, they all just seem to do their own thing.
The phone is checking the pins on the charger. If the data pins are shorted, then you get fast charging. If not, then it will default to the slower USB charging.
That last update that came through added that 'Slow Charge' warning. I saw it on my gf's DNA. My DNA is rooted and ROM'd so I don't have that. You can still check for the charging speed on a device by going to the Battery page in the settings. Up on top it with either say AC (which is fast) or USB (which is slow).
The supplied HTC wall chargers have the data pins shorted within them, so any regular USB cable will allow you to charge at the AC rate. You may remember some years ago there used to be Charging Only cables and they were regular USB cables that simply had the data pins shorted.
Most car chargers do not have data pins shorted. I have used a number of different ones from monoprice and none of them will charge at the AC rate.
There are videos on youtube showing how to open them up and solder the data pins. You can look for charging cables on amazon (but that seems lame), or you can find a car charger that just actually works.
There is a cheap Motorola charger on Amazon that will give you the fast AC charge.
https://www.amazon.com/dp/B000S5Q9CA/ref=as_li_ss_til?tag=funkertosh-20&camp=0&creative=0&linkCode=as4&creativeASIN=B000S5Q9CA&adid=131FS8N5R70JPV4QGDCV&
Funkertosh said:
This is a known issue. It all comes down to there being no set standard for USB charging. Android, apple, tablets, they all just seem to do their own thing.
The phone is checking the pins on the charger. If the data pins are shorted, then you get fast charging. If not, then it will default to the slower USB charging.
That last update that came through added that 'Slow Charge' warning. I saw it on my gf's DNA. My DNA is rooted and ROM'd so I don't have that. You can still check for the charging speed on a device by going to the Battery page in the settings. Up on top it with either say AC (which is fast) or USB (which is slow).
The supplied HTC wall chargers have the data pins shorted within them, so any regular USB cable will allow you to charge at the AC rate. You may remember some years ago there used to be Charging Only cables and they were regular USB cables that simply had the data pins shorted.
Most car chargers do not have data pins shorted. I have used a number of different ones from monoprice and none of them will charge at the AC rate.
There are videos on youtube showing how to open them up and solder the data pins. You can look for charging cables on amazon (but that seems lame), or you can find a car charger that just actually works.
There is a cheap Motorola charger on Amazon that will give you the fast AC charge.
https://www.amazon.com/dp/B000S5Q9CA/ref=as_li_ss_til?tag=funkertosh-20&camp=0&creative=0&linkCode=as4&creativeASIN=B000S5Q9CA&adid=131FS8N5R70JPV4QGDCV&
Click to expand...
Click to collapse
I have the charger that came with the phone it it fully charges my DNA in 2 hours from 3%
Funkertosh said:
This is a known issue. It all comes down to there being no set standard for USB charging. Android, apple, tablets, they all just seem to do their own thing.
The phone is checking the pins on the charger. If the data pins are shorted, then you get fast charging. If not, then it will default to the slower USB charging.
That last update that came through added that 'Slow Charge' warning. I saw it on my gf's DNA. My DNA is rooted and ROM'd so I don't have that. You can still check for the charging speed on a device by going to the Battery page in the settings. Up on top it with either say AC (which is fast) or USB (which is slow).
The supplied HTC wall chargers have the data pins shorted within them, so any regular USB cable will allow you to charge at the AC rate. You may remember some years ago there used to be Charging Only cables and they were regular USB cables that simply had the data pins shorted.
Most car chargers do not have data pins shorted. I have used a number of different ones from monoprice and none of them will charge at the AC rate.
There are videos on youtube showing how to open them up and solder the data pins. You can look for charging cables on amazon (but that seems lame), or you can find a car charger that just actually works.
There is a cheap Motorola charger on Amazon that will give you the fast AC charge.
https://www.amazon.com/dp/B000S5Q9CA/ref=as_li_ss_til?tag=funkertosh-20&camp=0&creative=0&linkCode=as4&creativeASIN=B000S5Q9CA&adid=131FS8N5R70JPV4QGDCV&
Click to expand...
Click to collapse
I kinda figured it was something with the pins if I wasn't voltage offset.
I did find that one of my car chargers from best buy runs in quick charge. The cable I fixed, rather than using a usb cable in a slot on the charger.
The best number 2.1 amp wall charger uses a data type cable.
Maybe I'll check into shorting the pins on that sucker to get quick charge mode.
Funkertosh said:
This is a known issue. It all comes down to there being no set standard for USB charging. Android, apple, tablets, they all just seem to do their own thing.
The phone is checking the pins on the charger. If the data pins are shorted, then you get fast charging. If not, then it will default to the slower USB charging.
That last update that came through added that 'Slow Charge' warning. I saw it on my gf's DNA. My DNA is rooted and ROM'd so I don't have that. You can still check for the charging speed on a device by going to the Battery page in the settings. Up on top it with either say AC (which is fast) or USB (which is slow).
The supplied HTC wall chargers have the data pins shorted within them, so any regular USB cable will allow you to charge at the AC rate. You may remember some years ago there used to be Charging Only cables and they were regular USB cables that simply had the data pins shorted.
Most car chargers do not have data pins shorted. I have used a number of different ones from monoprice and none of them will charge at the AC rate.
There are videos on youtube showing how to open them up and solder the data pins. You can look for charging cables on amazon (but that seems lame), or you can find a car charger that just actually works.
There is a cheap Motorola charger on Amazon that will give you the fast AC charge.
https://www.amazon.com/dp/B000S5Q9CA/ref=as_li_ss_til?tag=funkertosh-20&camp=0&creative=0&linkCode=as4&creativeASIN=B000S5Q9CA&adid=131FS8N5R70JPV4QGDCV&
Click to expand...
Click to collapse
The phone is doing more than checking pins now. I have a 2.1 Amp dual charger with pins shorted and get the warning. It happily charged in AC mode before the update. The charger can also charge a nexus 10 at 2 Amps. I'm guessing the kernel devs will have to locate the source of the warning. I thought the resistance between the data pins might be the trigger, but there is no difference between the HTC charger and my dual charger. It does seem my car charger is unaffected.
I have found that to trick the phone into AC mode you have to short the the actual cable. Hence strip the insulation off the wires and short the data wires together. Has worked for me on all my chargers.
Sent from my HTC6435LVW using Tapatalk 2
This message does not have to do with the update. I have still not updated my DNA and have been struggling with this for about 6 or 8 months. I am on 2.08. The issue has continually gotten worse since the first time I saw it. At first it would just appear about 1 in 10 times I plugged it in to a car charger. It then got to the point where it would only not show the message with a certain car charger. Now it is showing it on the one car charger that works, but if I mess around with it and unplug and replug it a few times it will finally charge normally. The last few days it has started showing the message on the OEM charger. I have cleaned out the port on the phone and cables quite a few times now, but it doesn't help. I found that doing that only helps if it gets really full of lint and the cable rocks in the port causing it to loose connection if you move it, but it does not change the slow charging message at all. The phone is also definitely not charging at full speed when that message is shown. If I have it plugged in and it shows that message my battery actually drains if the screen is on. With the screen off I only gain about 10% per hour. I am not sure where the issue is, but I think it is different in different circumstances. In my case I think it is the phone itself, but from what I have read about others experiences it seems their problem might be the charger/cord. I hope this gets sorted out soon.
Clay333 said:
This message does not have to do with the update. I have still not updated my DNA and have been struggling with this for about 6 or 8 months. I am on 2.08. The issue has continually gotten worse since the first time I saw it. At first it would just appear about 1 in 10 times I plugged it in to a car charger. It then got to the point where it would only not show the message with a certain car charger. Now it is showing it on the one car charger that works, but if I mess around with it and unplug and replug it a few times it will finally charge normally. The last few days it has started showing the message on the OEM charger. I have cleaned out the port on the phone and cables quite a few times now, but it doesn't help. I found that doing that only helps if it gets really full of lint and the cable rocks in the port causing it to loose connection if you move it, but it does not change the slow charging message at all. The phone is also definitely not charging at full speed when that message is shown. If I have it plugged in and it shows that message my battery actually drains if the screen is on. With the screen off I only gain about 10% per hour. I am not sure where the issue is, but I think it is different in different circumstances. In my case I think it is the phone itself, but from what I have read about others experiences it seems their problem might be the charger/cord. I hope this gets sorted out soon.
Click to expand...
Click to collapse
It could be the charging equipment your phone or it could also be the power source not providing enough power to the device for it to charge fast so it charges slow.
Sent from my HTC6435LVW using XDA Premium 4 mobile app
My car charger doesn't charge my note 2 although it acts like it charging. How can I fix this issue.
webb7735 said:
My car charger doesn't charge my note 2 although it acts like it charging. How can I fix this issue.
Click to expand...
Click to collapse
Car chargers work much slower than a wall charger because of the output of it. If you have the screen on, using gps, and listening to music at the same time it won't charge or it will actually drain.
charging problems
webb7735;4216o87 said:
My car charger doesn't charge my note 2 although it acts like it chargine. How can I fix this issue.
Click to expand...
Click to collapse
pp
Probably, the car charger is putting out just enough amps to activate charging mode, but not enough to charge with any discernable speed
I would look for a more reputable charger brand. I have found that cheapie chargers just don't perform well. Especially with the 2 amp requirement our devices need. A 1 amp verizon mobile charger with the micro usb factory attached and ment realistically for my wife's s3 1 amp requirement is adequate to provide a stable but long charge time for my note 2. Remember, some power distribution is lost simply in the usb connection between a cheap 1 amp charger and the usb cable plugged into it. Another useful addition for mobile charging would be an ac/dc inverter that allows your factory home 2 amp charger to plug into your vehicle. That would be reasonably clean 110 v ac to dc at 2 amp from your genuine samsung home charger. Better chance of getting the charging capacity you require. Also, don't forget to chech your usb cable. It may look fine, but could be stretched or damaged causing a bad charge connection. But definitely avoid cheap car chargers. Not only can they work sporadically, they may actually damage your phone.
MUOTE=BoostedB18C;42146532]Car chargers work much slower than a wall charger because of the output of it. If you have the screen on, using gps, and listening to music at the same time it won't charge or it will actually drain.[/QUOTE]
I have tried charging my phone with it turned off when its charging in my car i dont use it i just let it charge but it doesnt work. Its ok not a big deal i can charge it at home and get a good day and a half on a full charge. I was just wondering if there was a way to fix it.
SuperDuperPuddin said:
pp
Probably, the car charger is putting out just enough amps to activate charging mode, but not enough to charge with any discernable speed
I would look for a more reputable charger brand. I have found that cheapie chargers just don't perform well. Especially with the 2 amp requirement our devices need. A 1 amp verizon mobile charger with the micro usb factory attached and ment realistically for my wife's s3 1 amp requirement is adequate to provide a stable but long charge time for my note 2. Remember, some power distribution is lost simply in the usb connection between a cheal 1 amp charger and the usb cable plugged into it. Another useful addition for mobile charging would be an ac/dc inverter that allows your factory home 2 amp charger to plug into your vehicle. That would be reasonably clean 110 v ac to dc at 2 amp from your genuine samsung home charger. Better chance of getting the charging capacity you require.
Click to expand...
Click to collapse
Thanks for the info. I will try that.
SuperDuperPuddin said:
pp
Probably, the car charger is putting out just enough amps to activate charging mode, but not enough to charge with any discernable speed
I would look for a more reputable charger brand. I have found that cheapie chargers just don't perform well. Especially with the 2 amp requirement our devices need. A 1 amp verizon mobile charger with the micro usb factory attached and ment realistically for my wife's s3 1 amp requirement is adequate to provide a stable but long charge time for my note 2. Remember, some power distribution is lost simply in the usb connection between a cheap 1 amp charger and the usb cable plugged into it. Another useful addition for mobile charging would be an ac/dc inverter that allows your factory home 2 amp charger to plug into your vehicle. That would be reasonably clean 110 v ac to dc at 2 amp from your genuine samsung home charger. Better chance of getting the charging capacity you require. Also, don't forget to chech your usb cable. It may look fine, but could be stretched or damaged causing a bad charge connection. But definitely avoid cheap car chargers. Not only can they work sporadically, they may actually damage your phone.
Click to expand...
Click to collapse
This, I just didn't feel like explaining it all. Also using an inverter can cause problems with strain on the electrical load of the vehicle though. If you have a big truck, they are safe to use. If you have a civic, I wouldn't use one.
charging problems
webb7735 said:
Thanks for the info. I will try that.
Click to expand...
Click to collapse
You are most welcome.
BoostedB18C said:
This, I just didn't feel like explaining it all. Also using an inverter can cause problems with strain on the electrical load of the vehicle though. If you have a big truck, they are safe to use. If you have a civic, I wouldn't use one.
Click to expand...
Click to collapse
I used one all the time when I had my Civic Si to power mine and a friends laptops when in town, we didn't have high speed at our houses and the provider wanted 50k to bring it, and I never experienced any issues with electrical strain. Im not saying it doesn't happen but with the newer vehicles it isn't that much of an issue.
Sent from my SCH-I605 using XDA Premium HD app
shangrila500 said:
I used one all the time when I had my Civic Si to power mine and a friends laptops when in town, we didn't have high speed at our houses and the provider wanted 50k to bring it, and I never experienced any issues with electrical strain. Im not saying it doesn't happen but with the newer vehicles it isn't that much of an issue.
Sent from my SCH-I605 using XDA Premium HD app
Click to expand...
Click to collapse
Thanks for the info.
so got tired of not finding a fast charge mod so I mod the cable.
took a realy thin cheap USB cable and cut it in two. on the phone side chortsircut the data cables (white and grean) then connected the vcc+ and ground- normal.
the only reason I cut it in two was to be able to tread a shrink tube on the cable.
now I get fast charge from car and power pack and. and it works perfect.
now stop saying u need a special or expensive cable.
u need a knife and shrink tube and a heat gun (a cigaret lighter works)
and no u can't use this cable for datacynk only charge
maydayind said:
so got tired of not finding a fast charge mod so I mod the cable.
took a realy thin cheap USB cable and cut it in two. on the phone side chortsircut the data cables (white and grean) then connected the vcc+ and ground- normal.
the only reason I cut it in two was to be able to tread a shrink tube on the cable.
now I get fast charge from car and power pack and. and it works perfect.
now stop saying u need a special or expensive cable.
u need a knife and shrink tube and a heat gun (a cigaret lighter works)
and no u can't use this cable for datacynk only charge
Click to expand...
Click to collapse
Cool, thanks man, I'm gonna do that.
Why blow data when you can just get a cheap 4$ cable from newegg with 22 awg power leads. I linked it in confirmed usb cable thread. You destroyed a cable and made it special, hence using a special one instead of standard. The base is pre shorted. You increased AWG technically. Get it? You made a charge only cable, when these are special and can be had cheap anywhere. Buy a nice 4$ standard one with the right power lead awg and you can use it for anything.
...or.. Crazy idea here. Get an Android charger?
Cutting up USB cables is a bad idea, especially shorting them out. The data pins are not supposed to be shorted, generally 200Ohms is expected.
They are suppose to be shorted with fast charge... the base normally does this on plug in on AC switch. A USB3 port also does this... all he did was make a charge only cable. With fast charge 2 though, you won't make it much past 1A this way, just like USB3. Why our stock cable has thick power lead AWG and the phone can reach 1.8A.
Steamer86 said:
They are suppose to be shorted with fast charge... the base normally does this on plug in on AC switch. A USB3 port also does this... all he did was make a charge only cable. With fast charge 2 though, you won't make it much past 1A this way, just like USB3. Why our stock cable has thick power lead AWG and the phone can reach 1.8A.
Click to expand...
Click to collapse
As I said, 200ohm, not shorted... Anyway.
unless the plugg that u connect the USB cable in i sent chortcircut it won't fast charge whatever cable u use. this is for making a charge cable to use with carcharger ore power packs. of u use a wallcharger it's 99% certain it is already chotend and u don't need this. but if u use the original cable (fastcharge) it won't fast charge in a power pack or car charger.
and I charge att same speed with this cable then original charger cable that came with the phone. measured 1.8a with this cable that's all my Powerpack can output. can probably go higher depending on how mutch the phone can use.
it's li-po so should be able to charge 0-100% in 20min but whill shorten battery life and don't think oer phones can handle it
I fast charge with 3 different cables. Again, it's the AWG. Facts don't lie. My power pack and car charger are pre shorted, so all good. If not pre shorted though, you are correct sir.
my wasn't that's why I made this. so no matter what cable used it won't fast charge. Som people also say u have to by a expensive cable with is bull####
if someone can provide a link with a preshortens cable... well then show it. unable to find any
It is legit. I did this with a car USB cable when I had my One X. It would only charge at USB rate (500ma) even though it was a 1A charger. Using navigation the battery would discharge faster than it charged. Tried various cables, and only got it to work by shorting the data pair. After that it charged AC at full 1A.
maydayind said:
my wasn't that's why I made this. so no matter what cable used it won't fast charge. Som people also say u have to by a expensive cable with is bull####
if someone can provide a link with a preshortens cable... well then show it. unable to find any
Click to expand...
Click to collapse
Several available on Amazon:
http://www.amazon.com/s/?ie=UTF8&keywords=usb+charging+only+cable
Not always. My car cigarette adapter is modded to short data pins. It fast charges all my other devices and even my tablets, but doesn't even charge my G2. It says its charging, no slow charging messages, but still depletes battery. Only way toncharge in my car is to use the second USB port that is unmodded, which slow charges. Annoying.
I still think there is a software bug limiting the charging speeds because you can get different speeds by plugging in the same cable mulitple times.
-sent from my LG G2 using XDA Premium 4
We aren't saying you are wrong, you are just doing something different. It's not about expensive, its about thickness for the combo usb cable. Just the awg. What your solution does is increase awg. They are called charge only cables (pre-post short). What people were searching for are COMBO cables. You are using/doing something different. Why titles are called "working USB" cables, not charge only. We already knew this. There is bugs. That was apparent in the voltage testing. Something in the kernel isn't playing right at all times. I have seen this on my car charger. With no change in conditions, I can sometimes charge 200mA's higher with a replug.
player911 said:
Not always. My car cigarette adapter is modded to short data pins. It fast charges all my other devices and even my tablets, but doesn't even charge my G2. It says its charging, no slow charging messages, but still depletes battery. Only way toncharge in my car is to use the second USB port that is unmodded, which slow charges. Annoying.
I still think there is a software bug limiting the charging speeds because you can get different speeds by plugging in the same cable mulitple times.
Click to expand...
Click to collapse
The included home charger for the G2 is rated at 1.8A -- use anything smaller, and you'll see the pop up warning on the phone that charging will be slow and that you should use the "official" charger.
My guess -- if you can find a car charger that actually will put out as much as the phone wants to draw (e.g., 1.8A), and THEN use your shorted data lines, you'll see fast charging of the G2 in your car.
jonstrong said:
The included home charger for the G2 is rated at 1.8A -- use anything smaller, and you'll see the pop up warning on the phone that charging will be slow and that you should use the "official" charger.
My guess -- if you can find a car charger that actually will put out as much as the phone wants to draw (e.g., 1.8A), and THEN use your shorted data lines, you'll see fast charging of the G2 in your car.
Click to expand...
Click to collapse
The 3SIXT micro USB charger I have is rated to 1A not modded, just bog standard. When charging I checked the battery stats and it says AC charging. Now I don't know if it has the data pins pre-shorted, but it managed to boost my battery by 10% in under 20 minutes. The phone was idle, but that's not bad going for a 1A $10 charger.
seems like the moderators did a god job deleting som posts.
just want to say I'm a sorry for my bad manur/attitude/language.
keep the input comming
here is another thread about the topic on another device
* *http://forum.xda-developers.com/showthread.php?t=2292373
maydayind said:
so got tired of not finding a fast charge mod so I mod the cable.
took a realy thin cheap USB cable and cut it in two. on the phone side chortsircut the data cables (white and grean) then connected the vcc+ and ground- normal.
the only reason I cut it in two was to be able to tread a shrink tube on the cable.
now I get fast charge from car and power pack and. and it works perfect.
now stop saying u need a special or expensive cable.
u need a knife and shrink tube and a heat gun (a cigaret lighter works)
and no u can't use this cable for datacynk only charge
Click to expand...
Click to collapse
Cool, thanks man
jonstrong said:
The included home charger for the G2 is rated at 1.8A -- use anything smaller, and you'll see the pop up warning on the phone that charging will be slow and that you should use the "official" charger.
My guess -- if you can find a car charger that actually will put out as much as the phone wants to draw (e.g., 1.8A), and THEN use your shorted data lines, you'll see fast charging of the G2 in your car.
Click to expand...
Click to collapse
not true have tried 3 other chargers 1.2 1.0 and 0.8 all say fastcharge (ac) with my modes cable. as long as it's over 500ma and with a cable with data pins shortend the slow charge warning is removed an the phone thinks it's charging from ac
charging my phone now with a Powerpack with 1a output and it says fastcharge (ac)
if I use the original cable it goes to slowcharging 500ma iv meshurd befor I put on the shrinking tube for isolation
and a car charger can output in theory 5-20a depending on your fuse in the car
the charging current is controlled by kernels in so phone. my old sensation u culd mod with a fastcharge Kernel so it never limited to 500ma always use max.
Samsung even has the ability to do a full charge in 30min but disabled in Kernel.
lg - g2 uses lipo battery's and culd actually be charged in less then 20min but if we do that u have to replace the battery every 6month at the best.
and lipo are extremely sensitive to over charge and the cells have to be charged with precision balans not to explode or swell.