[Q]P500 USB charging too slow or not? - Optimus One, P500, V General

Hey all P500 owners, I recently bought one, and have been happily using it for a week now. I have a question though, how long does a full-charge take through pc usb? mine is like ~8 hours.
how about yours?
thx very much in advance!

nus.thomaskirk said:
Hey all P500 owners, I recently bought one, and have been happily using it for a week now. I have a question though, how long does a full-charge take through pc usb? mine is like ~8 hours.
how about yours?
thx very much in advance!
Click to expand...
Click to collapse
That's normal. If you charge using wall plugs its 2-3 times faster

nus.thomaskirk said:
Hey all P500 owners, I recently bought one, and have been happily using it for a week now. I have a question though, how long does a full-charge take through pc usb? mine is like ~8 hours.
how about yours?
thx very much in advance!
Click to expand...
Click to collapse
Wouldn't suggest charging it on the computer to often though, your not charging it to its full potential

Jeanjacq said:
Wouldn't suggest charging it on the computer to often though, your not charging it to its full potential
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Click to collapse
I remember from a thread it said charging via USB once in a while is beneficial to battery life..

if charged thru usb u will get long battery life. try it

the way i remember is you charge whenever possible, keeping the battery between 20% and 80%.

Charging via USB is actually a bit better because it is slower, ensuring a good charge. Wall charging is good too, but car chargers for example are not really recommended since they use a pretty high voltage, which can affect the battery. Of course CMIIW.

Yeah, I think a slower charge is better for the battery as it does not get as hot. My usb charge takes about 4-5 hrs while the wall charge takes about 2-3

Related

Where does 10% of my battery go when I reboot?

I have seen a few others mention this, any idea on why some of us are loosing 10% of our battery when we reboot?
I'm thinking next full charge, I will do a battery stats erase in clockwork recovery.
mycomputerisjunk said:
I have seen a few others mention this, any idea on why some of us are loosing 10% of our battery when we reboot?
I'm thinking next full charge, I will do a battery stats erase in clockwork recovery.
Click to expand...
Click to collapse
It seems like every time I reboot I lose at least 5% battery.
lp4261 said:
It seems like every time I reboot I lose at least 5% battery.
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Click to collapse
same here.
has anyone else noticed that this phone takes ForEVER to charge? My evo would nearly fully charge in an hour and a half, I think my Tbolt, first real charge, took 3 hours.
nosympathy said:
same here.
has anyone else noticed that this phone takes ForEVER to charge? My evo would nearly fully charge in an hour and a half, I think my Tbolt, first real charge, took 3 hours.
Click to expand...
Click to collapse
Ive never had a phone charge that fast so its def not specific to the Tbolt.
mob87 said:
Ive never had a phone charge that fast so its def not specific to the Tbolt.
Click to expand...
Click to collapse
yeah my iPhone 4 would go from 15-20% to full in maybe 2 hours, on a bad day, and my evo would go from 20% ish to full in an hour and a half.
Guess I am just a little spoiled maybe.
The phone might do a "quick" charge to 80 - 90 percent, and then go into a trickle charge. I can get to the mid 80s in a couple of hours but then is slows down after that, which is a good thing.
I'm seeing the same thing as far as loosing 5-10% on a reboot. Seems like there are still some issues with the battery life on this big guy.
Dan
wait you can unplug your phone? j/k
the boot time stock is way too long... the system is loading so much junk it takes alot out of the battery... my guess is checking all the radios and such uses alot of battery and thats why the phone has the fastboot option
Here some info.
http://forum.xda-developers.com/showthread.php?t=871051
Its also better to charge with a car charger or in the wall. USB in pc does take forever if you are noticing it takes longer this could be a reason.
I was going to post this, very annoying to lose that much battery on reboot. On my evo you would gain charge while rebooting on the charger...
Sent from my HTC Thunderbolt
TNS201 said:
Its also better to charge with a car charger or in the wall. USB in pc does take forever if you are noticing it takes longer this could be a reason.
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Click to collapse
This is true. If I recall correctly, according to USB spec a device can draw about 100mA from a USB port without negotiation. With proper negotiation, the current draw can go as high as 500mA.
The stock HTC charger is rated at 1A (1000mA). So at least on paper, the wall charger is twice as fast as a USB port with proper installation. If negotiation is unsuccessful, the wall charger can be 10x faster than a USB port that isn't properly detecting the phone.

Can someone please test the GS2 charge time?

Hi guys
I'm an iphone 3gs owner at the mo but my contract is up in a week and after doing A LOT of research over the past 3 weeks, i was pretty much decided that the GS2 was gonna be my next phone.
Then i foolishly visited the xda forums! lol (in fairness, it probably still will be my next phone).
But seriously though, setting aside the various issues some people are clearly having (reboots, battery drain, etc) what shocked me the most was hearing about the low-powered charging mechanism (apologies if i've gotten this slightly wrong).
I've heard that it only charges at ~650mah, but that the phone can easily surpass this under load (~850mah?), meaning that you could be charging the phone at the same time as using it, only to find the battery going DOWN. Can someone confirm if this is true? If it is, then i'm gobsmacked that Samsung could make such a c0ck-up. Imagine if you're using the GPS (a real battery hog) while driving (and plugged-in to the ciggy lighter) only to find that the battery dies before you get to your destination! lol. I've heard about the heat this puppy produces, i wonder did they limit the juice to stop it from burning a hole through the floor
Even though i'm bored to t1ts with my iphone (and i hate apple), what i love about it is that when i don't actually use the phone for extended periods of the day (which is quite often, due to work) it still retains it's charge really well (i get insanely good battery life). I would be really annoyed if i found the GS2 battery dropping any more than, say, 30% over the course of a busy working day (say 9am to 7pm) with virtually no use.
So, to finally get to my point! My iphone charges REALLY fast. I'm worried that it will take a stupidly long time to fully charge the GS2. Can some kind person please do an experiment for me, and see how long it takes theirs to fully charge (from fully dead to 100%) with the screen off and the phone not doing anything major in the background?
Also, it would be good to know how this compares to the GS2's competitors.
Sorry for the long post guys!
my phone is at 33% at 8:08
Will let you know how I get on. I have it on charge now
I think mine takes around 3 hours from empty using samsungs supplied charger but I will try to do a test for a more accurate time. How does this compare to the iphone?
Yep mine takes about 3 hours as well from empty to about 90% using the wall charger, then it goes on trickle charge the rest of the way. This is on standby as well.
Yepp takpes about 3 hours to get fully charged. however, i've been using the phone as a wifi hotspot all the time and yes, it increases charging time but it doesn't really matter when it takes so long anyways
winwiz said:
my phone is at 33% at 8:08
Will let you know how I get on. I have it on charge now
Click to expand...
Click to collapse
65% at 9am
It takes almost 3.5-4 hours to charge it with stock charger from empty to full.
It takes a bit more than 5 hours to charge from empty full using USB charging in my laptop.
Found out the hard way:
Charging with original EU charger AND heavy use (downloading, Wifi tethering, map ops etc.) MADE it drain faster than charging.
Two nights before left it during night with orig. charger and made it in 8 hrs only to 84% while on.
With Hama 0,8 amps charger full in 2hrs from empty and stays full even with heavy work.
NO heat issue though !
Methinks the charger is crap
Sent from my GT-I9100 using XDA App
doesn't really matter which charger. got the nokia 1,2A charger and it takes nearly 3 hours as well to fully charge the battery.
I use my ipad charger with it and its definitely more like 2 hours not 3
My car usb adapter is 1amp and has no problem keeping it fully charged while using sygic satnav
Sent from my GT-I9100 using XDA Premium App
troed said:
Found out the hard way:
Charging with original EU charger AND heavy use (downloading, Wifi tethering, map ops etc.) MADE it drain faster than charging.
Two nights before left it during night with orig. charger and made it in 8 hrs only to 84% while on.
With Hama 0,8 amps charger full in 2hrs from empty and stays full even with heavy work.
NO heat issue though !
Methinks the charger is crap
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Is this an ebay job to get one of these?
Any idea what the max amps the phone can take? I've been looking around, seen chargers up to 2 amps, but don't want to ruin the phone...
Edit: Sorry, posted too soon. Just saw this thread, and the battery has is rated at 1000mA, so ya, don't use a 2 amp charger
Murfle said:
Any idea what the max amps the phone can take? I've been looking around, seen chargers up to 2 amps, but don't want to ruin the phone...
Edit: Sorry, posted too soon. Just saw this thread, and the battery has is rated at 1000mA, so ya, don't use a 2 amp charger
Click to expand...
Click to collapse
if you look thru the battery driver source code, samsung capped the charging at 650 mA it seems. not sure why, other android phones use the full 1 amp.
so samsung either saw a heat problem and lowered it, or that's just the way they do their phones charging. who knows.
RogerPodacter said:
if you look thru the battery driver source code, samsung capped the charging at 650 mA it seems. not sure why, other android phones use the full 1 amp.
so samsung either saw a heat problem and lowered it, or that's just the way they do their phones charging. who knows.
Click to expand...
Click to collapse
Wow, ok. As someone who uses 3G a lot when our internet connection goes down (all too often), I hope the charge will end up keeping up with the battery drain. Otherwise I'll be tempted to change that source and probably end up frying my phone (if it ever gets in stock :|)
Thanks for the info

[Q] X10 Slow Battery Charging. Help please!

Hello. Today I bought an Xperia X10 from a SH store. Anyway the phone came in great conditions and at a great price. The boy from there gave me the phone and charger + USB cable. All things good till I start charging it. I should mention that when I got the phone it was at aprox. 60% and after using intensively (like when you just buy a phone) it was, after 5 h, at 22%.
Let's get to the problem: I plug the phone with the charger to socket and let it charge. After 3h it went from 22% to 52% . I mean this is really impossible to understand.
My question is how can I find what is wrong. Now I'm wondering if the charger or the USB cable or the Battery is not original.
On the charger there is written SonyEricsson, so I guess it is original. I'll try tomorrow to search for it's S/N on the net. The Output Voltage is 5V and 700mA, which I saw that is normal for an original charger.
The USB cable looks kind of fishy to me.
The battery seems original.
So what could it be wrong and how can I find it out? Any thoughts, beside what I've asked, about this kind of problem are well appreciated.
Thank you.
That's odd considering the current that was flowing to your battery. Try turning off your phone and charging it to 100%. Maybe It needs some adjusting. Also i suggest rooting your phone, no problems with battery at all with the ROMS that are out
Thank you for your fast response. I'll try to charge it to full when it is powered off to see if time differs.
When do you mean "no battery problems with available ROM's" do you mean no charging problems?
yes i mean that
The only reasons u could have a reduction of current is if heat is an issue or if your phone is in heavy use. Also if the charger is faulty of course. So check the temperature while charging and try diabling wifi and any data u have going on the phone. That should help.
Sent from my X10i using XDA App
Thank you for your response. While I left the phone charging there was nothing running at all. Also I didn't notice the phone heating too much.
I went to the guy from who I bought the phone, and he said that he will order an original charger at no cost for me. So I think I'll wait for that one and see how it works.
But out of curiosity: could it also be the cable that is limiting the power? The cable is not original.
UsManyDead said:
Thank you for your response. While I left the phone charging there was nothing running at all. Also I didn't notice the phone heating too much.
I went to the guy from who I bought the phone, and he said that he will order an original charger at no cost for me. So I think I'll wait for that one and see how it works.
But out of curiosity: could it also be the cable that is limiting the power? The cable is not original.
Click to expand...
Click to collapse
Yes, a faulty cable can't charge the phone properly.
Wait and see how it goes with the new charger!
Did you plug it in staight after you used it? My phone seems to drain when it is at around 45 degrees even though it doesnt feel hot. Let it cool by turning it off for 10 minutes or so and try again.
Sent from my X10i using XDA App
Everything is fine now with the new charger which looks more than original and the USB Cable, also original. (The charge time is ~ 2-3h - empty -> full)
Thank you all for your help.

Battery drains out from 10% to 1%(OFF) in a minute

Battery drains out from 10% to 1% and (OFF) in a minute, yes one minute...
Any one has the same problem?, is this normal?.
I noticed it does not happen every time, what could possibly cause the problem?.
Thanks
Hello,
You should try recalibrate your battery. To do that :
- Discharge your phone and let it turns off itself
- Power it on and wait that it switches off
- Charge your phone when it's off during 8 hours
Good luck !
and after you fully load your battery go into recovery and wipe the battery stats and charge it up again
Sent from my MT15i using XDA Premium App
I've seen a similar behaviour on many other Android devices. IMHO you can consider 10% Battery as almost Zero - you just shouldn't let it run that low.
I have noticed one thing,when phone is charched with charger battery life time is around 5 days.
When i charge phone over computer, two and half day is max of battery duration??
Anyone else noticed that?
JosipBasic said:
I have noticed one thing,when phone is charched with charger battery life time is around 5 days.
When i charge phone over computer, two and half day is max of battery duration??
Anyone else noticed that?
Click to expand...
Click to collapse
It's always been the case, using the wall socket will give better battery life compared to using the pc.
Sent from my LT15i using XDA App
JosipBasic said:
I have noticed one thing,when phone is charched with charger battery life time is around 5 days.
When i charge phone over computer, two and half day is max of battery duration??
Click to expand...
Click to collapse
XperienceD said:
It's always been the case, using the wall socket will give better battery life compared to using the pc.
Click to expand...
Click to collapse
Same thing for the car adapter. Weird phenomenon that cannot be explained from a scientific point of view, but it's my own experience.
Havn't noticed that with my neo, however I never have my phone below 20% for too long, have a charger in my travel bag, 1 in the car and 1 at home, always a cable to plug in nearby.
NeoJeo said:
Hello,
You should try recalibrate your battery. To do that :
- Discharge your phone and let it turns off itself
- Power it on and wait that it switches off
- Charge your phone when it's off during 8 hours
Good luck !
Click to expand...
Click to collapse
this worked wuth me ...
thx
d_dukk said:
Same thing for the car adapter. Weird phenomenon that cannot be explained from a scientific point of view, but it's my own experience.
Click to expand...
Click to collapse
This is probably because USB port in PC is limited to 5 volts and that means that the charging will be slower and not so efficien.t probably same thing with car adapter.
Perry_wh said:
This is probably because USB port in PC is limited to 5 volts and that means that the charging will be slower and not so efficien.t probably same thing with car adapter.
Click to expand...
Click to collapse
PC usb = 500mA & 5V
Wall charger = 1A & 5V
Some PC motherboards had specially made some USBs ports for charging. There is output ~800mA. Read your pc manual.
There is differents.
Sent from my MT15i

LG promo cradle slow to charge?

I just got my cradle and it took 4 hours for my battery to charge. Is that how long it's supposed to take?
thegameksk said:
I just got my cradle and it took 4 hours for my battery to charge. Is that how long it's supposed to take?
Click to expand...
Click to collapse
Its meant to discharge fully and then charge your battery.
stlouie65 said:
Its meant to discharge fully and then charge your battery.
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Click to collapse
I don't understand. The battery was fully discharged in my phone then I put it in the cradle. 4 hours later the light turned green.
I've noticed it's pretty slow. I don't know if it's 4 hours, but it's definitely at least 3
thegameksk said:
I don't understand. The battery was fully discharged in my phone then I put it in the cradle. 4 hours later the light turned green.
Click to expand...
Click to collapse
Your phone will never truly fully discharge the battery (safety measure) it has to save enough to shut down properly. So that is part of it... I don't know if the cradle is set up to fast charge either... I doubt it, considering the phone should last longer than four hours any way. I'm happy to have a FREE extra battery, and cradle... It charges the battery, that's all I'm really looking for... I you are unhappy with it, I suppose you could send it back...
Sent from my LG-H901 using Tapatalk
I'll try to remember to check mine next time. I don't think it takes that long though!
Sent from my pretty nifty brand new LG V10
stlouie65 said:
Its meant to discharge fully and then charge your battery.
Click to expand...
Click to collapse
No such thing is happening. Please do not spread misinformation.
It charges slower than the phone because it does not have Quick Charge, it's a very simple charger. Label says it puts out 1.6A at 4.4V, which means the battery probably charges at about 1A on average. Charging is never 100% efficient and charging does not progress in a linear fashion, it slows down past 80% to near-trickle, otherwise the battery would overheat.
Chargers don't discharge batteries to charge them. This isn't 1990 and our battery isn't NiCad.
I just don't know why they're calling it a cradle. You're not resting your device on it. Those are cradles, this is a battery charger.
THIS is a cradle: http://www.amazon.com/gp/product/B0...ue&ref_=ox_sc_act_title_2&smid=A1LWHYTZATVG8I
However, this thread is otherwise interesting, I've used my battery charger for a few cycles, meh, it charges my spare battery overnight.
I know this is an older thread, but what's the experience with this cradle? I just got a used V10 on Swappa with this cradle and it does seem like it's taking a while to charge. I have no problem with how long it's taking, but I need to know if it's defective so I can do something about it on Swappa.
tripey said:
I know this is an older thread, but what's the experience with this cradle? I just got a used V10 on Swappa with this cradle and it does seem like it's taking a while to charge. I have no problem with how long it's taking, but I need to know if it's defective so I can do something about it on Swappa.
Click to expand...
Click to collapse
It doesn't have fast charging like the phone itself... It's fine.
Common sense isn't all that common

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