For questions specifically about issues with battery charging or power supply.

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0
votes
0answers
7 views

Can I leave my note 2 charging? [duplicate]

The guy I bought my phone off of said there was a problem with the note 2, where i should not leave my phone plugged in all the time becuase the battery could overheat of whatever.. So I dont have it ...
4
votes
3answers
14k views

Samsung Galaxy S5 turns on when fully charged and never turns off

I just 'upgraded' from the Samsung Galaxy S4 to the S5. Both use similar 4.4.2 Touchwiz software, but by new one has some odd behavior. I'll explain. Notes: I set smart screen sleep (or timeout, how ...
66
votes
5answers
105k views

Battery Life and First Time Charging on Li-ion Batteries. Myth? [closed]

"Ok you bought a brand new mobile phone with brand new battery, after checking its working ok kindly switch it off and charge it fully (100%) then start using it. IT WILL INCREASE YOUR BATTERY LIFE.", ...
0
votes
1answer
109 views

Auto turn on after power on for an Android-based device

If I'm not mistaken, if an Android-based device is turned off (or powers down due to completely exhausted battery) and then is charged up again, it will automatically boot only to battery charging ...
0
votes
0answers
57 views

qmobile i12 is dead built in battery whatt to do

i bought Qmobilei12 on 12 October 2014.after using i just put my mobile on the shelf after a hour when i picked it than it was totally dead i put it on charging but the phone is still dead don't know ...
0
votes
2answers
71 views

Samsung Ace 2 with Cyanogenmod turns itself on when put on charger while turned off

It started happenning after repair. Could it be a software setting that was changed in repairshop or is it a hardware issue? All they did was replace mini-USB port.
0
votes
0answers
74 views

Configure android phone to start charge only after discharging 70% or below

I have an application where my phone needs to be in continuous charging mode. I understand most smart phones would have a mechanism that cuts off charging after the phone has been charged to 100% and ...
1
vote
1answer
54 views

How to use an external sd card and recharge the battery at the same time

I'm an happy owner of the tablet nexus 10. It is very good. Some time ago I've bought the leef connector because I want to use an external sd card : as you can see from the picture,there is a ...
0
votes
0answers
396 views

Battery draining faster after recharging on Galaxy S4 Mini

I'm struggling with my Samsung Galaxy S4 Mini. Actually the battery is very good and since I don't use my phone a lot, it lasts pretty much 2 days when I let it die and full recharge it. The issue ...
0
votes
1answer
737 views

My Samsung Galaxy Note won't charge but will turn on for 1 second

I got my Samsung Galaxy Note about 5 months ago and three months into having it I dropped it and cracked the screen. The actual touch screen works it is just the glass that is broken. About a month or ...
0
votes
0answers
20 views

Occasionally daydreaming won't work

On my 4.2.2 tablet randomly does not work. I set device to daydream with clock when charging and I have "dont sleep" unchecked in developer options, but sometimes instead of showing the clock device ...
0
votes
0answers
48 views

Is maximum capacity of a battery in mAh a increasable value? - received fake battery

I think its not. I just bought an extended 3890 mAh battery for my Galaxy S4 GT I9500. The original Samsung battery is 2600 mAh. This is my second purchase from a different seller, after discovering ...
0
votes
2answers
73 views

Does Using 2.0 or 3.0 cables affect charging speed with same adapter?

Using my Note 3 If i charge my phone using the same adapter but with different cables, does that affect the charging speed with the 2.0 cable or 3.0 cable. am supposing the 2.0 cable is of best ...
3
votes
1answer
3k views

Micro USB cables that only charge but no data, no mounting etc (Samsung Galaxy S)

Not all cables seem to be created equal but I've never got to the bottom of why so many (cheap) cables I try only charge - no data. Anyone know why? Certain pins not connecting? I do know that longer ...
0
votes
0answers
148 views

Asus ME302C tablet charging problem

This is in continuation to my earlier question (Asus ME302C tablet charging forever and doesn't start). Somehow my account is messed up so posting new question. My ASUS ME302C tablet stopped ...
0
votes
0answers
646 views

LG G3 not charging

My relatively new lg g3 randomly just doesn't charge. I changed outlets, blocks, cords, buildings, basically everything I could think of and it just doesn't work. PLEASE HELP!! Btw: I am thinking of ...
1
vote
0answers
60 views

How do I set battery charge min-max range to make it degrade with time less?

As far as I know, LiIon batteries should be kept in about 40%-80% range in order to degrade more slowly. On my laptop I use the following commands to make it change battery conditionally, only when ...
3
votes
8answers
10k views

Charging the Asus Transformer (Prime)

Can you charge the Asus Transformer (or the newer Prime) without the keyboard dock? Since the tablet itself does not have any USB ports, I don't see how you could charge the tablet without the dock ...
0
votes
2answers
953 views

Asus ME302C tablet charging forever and doesn't start

My Asus ME302C tablet was giving charging problem lately and is completely dead now and not starting up. Around 5 days back, its charging got stuck at 55% and it never went ahead even after charging ...
1
vote
1answer
87 views

Samsung Galaxy S2 new battery dying too quickly

I'm trying to figure out if the new battery is faulty or if there could be something else causing the battery to charge the whole night and then die after half a day. If I take out the charger while ...
1
vote
1answer
515 views

HTC One M8 Charging Issues

I just wanted to check if my HTC One M8 is working fine, I just got it and it's brand new but the battery runs out in 4 hours of non stop use and mobile data usage and when I charge it, it charges at ...
0
votes
2answers
1k views

Why does charging leads to battery losing charge at times

I have a LG Optimus S Android on Gingerbread (The one on the cheaper side with least specs for an Android). I have found that when I use the USB charger connected to my computer, at times instead of ...
0
votes
1answer
143 views

How do I override charging current on Huawei Honor 6?

On SonyEriccson Xperia X10i I do this: echo 1000 > /sys/devices/platform/msm_hsusb/gadget/chg_current This allows faster charging from computer's USB port (if I know it can source more than ...
1
vote
1answer
14 views

Is it possible to configure the phone to charge when the battery left X amount of juice?

Illustration: I plug in an android phone to either a power bank or a charger. However, I do not want it to start charging immediately. I want to configure the phone such that when the android phone ...
1
vote
1answer
1k views

Where in the Nexus 4 is the wire wireless charging coil?

I've just received a "smartfox qi" wireless charger as a gift, but it won't charge my Nexus 4 despite its indicator light turning on, and the Nexus 4 says "charging wireless". Still, it doesn't ...
0
votes
1answer
30 views

Is it safe to use an LG charger on a Moto X? [duplicate]

I have a 2014 Moto X, and a Nexus 4. Is it safe to charge my Moto X using my Nexus 4 charger?
3
votes
3answers
7k views

Can my Samsung Galaxy Nexus and iPhone 5 share same micro USB charger?

Does the micro USB charger cable that comes with the Samsung Galaxy Nexus be used with the iPhone 5 and vice versa?
1
vote
0answers
18 views

Will debugging damage my battery? [duplicate]

I work as a Android developer and I use my own phone for debugging as well as some other devices. Keeping the phone connected with USB will automatically charge my phone but will my battery be damaged ...
1
vote
1answer
1k views

Nexus 7: micro usb port broken

I have a 2012 nexus 7, its a beast of a device. But unfortunately the usb port of the device is broken. Is there any way I can charge the batteries my beloved nexus? I have opened it up, and removed ...
0
votes
2answers
2k views

How do I stop my note 4 from activating the screen when it is done charging?

When I charge it at night and its finished the screen will stay on all night unless I plug it out. How do I stop this from happening.
0
votes
0answers
729 views

My Galaxy GRAND 2 won't charge?

I think the problem started when I plugged an unoriginal USB cable to my phone for charging. After that my phone started to go in dock mode without anything plugged in it. After 2 days this problem ...
0
votes
0answers
48 views

How to recalibrate the OS for an external battery?

I recently bought an external non-standard 7000 mAh battery for my Samsung Galaxy S3 but the phone doesn't seem to recognize it. Is it possible that the phone needs to be reconfigured or recalibrated ...
0
votes
0answers
322 views

“Removed User” Draining Battery Nexus 5, 5.0

The other night I noticed my Nexus 5 had changed the wallpaper and that all my settings and desktop items were different. I had no idea what was going on, so I went into settings and discovered I was ...
0
votes
4answers
2k views

CyanogenMod 10.2 on Galaxy S3 charging problem

I have a Galaxy S3 with CM 10.2 build date 28-09-2013. The problem I am facing is slow charging of my mobile. It takes around 6-7 hours to charge when connected to AC power source. Before CM with S3 ...
8
votes
3answers
7k views

What's the safe limit on charger output for a Galaxy Nexus

The charger that came with my Galaxy Nexus phone outputs 5 volts at 1 amp. I have another charger that outputs 5v at 2 amps. Is it safe to use this charger? What's the limit I can use without damaging ...
27
votes
8answers
40k views

Why is charging from computer using USB slower than using an outlet?

And what is roughly the ratio of the charging speed in USB vs charger? My phone is Samsung Galaxy S, if that matters.
1
vote
1answer
100 views

Is it possible for a device to consume more power than it is wall-charging?

I have a 2012 Nexus 7 running KitKat. I have a hunch that it is not charging properly. Specifically, if the system is on and the device is plugged into the USB wall-charger, the battery indicator says ...
1
vote
1answer
3k views

I cannot charge my tablet

I only have a USB cable to charge my tablet and I plugged it into my laptop to charge and a little red X shows up on the battery thing. How can I charge my tablet?
0
votes
0answers
12 views

Connect to USB printer and charge tablet at same time [duplicate]

To connect a USB printer to my Android tablet I'd use a cable like one of the two shown below But this means that my only USB port on the tablet is gone and the device won't charge. What's the ...
2
votes
3answers
2k views

HTC One X won't charge

I bought a HTC one X in China, in order to send it to my girlfriend who's in UK, but she's constantly get charging problems. The problem is like this: Can't charge at all using AC adapter if the ...
0
votes
0answers
5 views

Why voice doesn't enable by itself on android smartphone when smartwatch (android wear) is charging

It's pretty required thing, because I disabled voice while clock is paired with phone, but I didn't expect that it would be the same thing while watch is charging. Is there any way to make it enabling ...
2
votes
1answer
206 views

Where is the battery animation called when charger connected to phone (OFF)?

I have Moto E (Rooted) which turn on when connected with USB via Laptop but not when connected to Wall charger instead it shows Battery animation. I got to know that battery animation is at ...
6
votes
1answer
12k views

Is there an efficient way to calibrate the battery than using some apps?

Is there an efficient way to calibrate the battery of my tablet in order to prove or disprove the very low battery backup than using some Apps.? The context is that my tablet is giving a very low ...
0
votes
1answer
43 views

Is there any way to disable the “connect charger” dialog?

When I unplug my phone from the charger, it pops up a dialog that it's low on power. Is it possible to disable that? My charger isn't that good so it looks like it's going in and out the whole time. ...
194
votes
6answers
47k views

Does constant charging harm my Android cellphone?

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics ...
0
votes
0answers
965 views

Phone won't charge when connected to the charger or even to my PC

My phone does not charge when I connect my charger, and when I connect the phone to my PC it wont connect. However, when I restart my phone I can connect my phone to the charger. Wen I disconnect the ...
0
votes
2answers
999 views

Connecting 2.1 A charger instead of 850 mA [duplicate]

I have a Sony Xperia SP model with a 2370 mAh battery. The original charger I got with it was of 850 mA. My question is can I use a charger with output of 5V-2.1A which is also from Sony? thanks and ...
0
votes
3answers
1k views

MOTO E battery drops suddenly to 0%

My moto E phone is not even a month old and already i'm having a HUGE problem with it. I charge my phone to full battery, sometimes during a whole afternoon or night. Then in the morning or at 100% i ...
0
votes
2answers
186 views

Only charges through USB when screen is locked

I have a Moto G running 4.4.4. When it's connected to a PC, it will only charge if the screen is locked: as soon as it's unlocked it will stop charging. In this situation, even if I lock the screen ...
0
votes
1answer
347 views

LG Won't Charge

My LG was at 1% battery yesterday so I let it charge for an hour or so but when I came back I noticed that it wouldn't even turn on without turning right back off. It would only turn on to show a "0% ...