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

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0
votes
0answers
16 views

decresing in power when charging

I have an HTC vivid 4g and anytime I insert its charger the phone will start decreasing instead of adding .Like say when the battery's 60% it will show a pop up that your phone is using morepower than ...
5
votes
4answers
885 views

Battery meter went crazy and now stays at 0%

I have a Samsung Galaxy Discover that worked fairly well until the last week or so. I ran the device down down to 0% - at which point the device shut off. I performed a full recharge and then ...
0
votes
0answers
15 views

Note 3 not charging after rebooting by itself

I was testing an app with the USB connected to PC and suddenly the phone rebooted itself and now it couldn't connect to the PC and cannot be charged even with the plug.
3
votes
2answers
7k views

Why doesn't my phone charge?

Okay, so I already ordered a new battery, but in the mean time. Why won't my phone charge? I have tried every charger/cable in my house and car (over 10 chargers and around 15 cables). Double ...
0
votes
1answer
130 views

Turning off Galaxy S4 while charging

I manually upgraded my Galaxy S4 to Kitkat; since it was rooted, upgrade couldn't be done automatically. It was successfully done but thereafter my phone turns on automatically whenever a charger is ...
0
votes
1answer
45 views

How can I have my device charge only when battery is below a given percentage?

So I've mounted my Nexus 7 onto a wall and use it as a sort of info screen / home automatisation device. Now this would require the screen to be on all the time which is why I want it to be connected ...
2
votes
1answer
599 views

How long device has been running since last charge?

In Android Lollipop, how do I see how long it has been since the last time I charged the battery? I mean I can get the approximate time by eye-balling the graph shown in Settings -> Battery. But, is ...
0
votes
1answer
311 views

Samsung Galaxy Note 8.0 (GT-N5100) USB connection & charging problem

I'm having problem with my Samsung Galaxy Note 8.0. When I connect it to a laptop/desktop computer it just won't acknowledge the connection. I just wanna transfer some files to my tablet. Before it ...
0
votes
0answers
49 views

Nexus 7 max battery capacity dropped so fast

I own a Nexus 7 2012 running Android 5.0.2 Two months back when I installed battery doctor and checked my maximum battery capacity it showed 3950mAh. Uninstalled the app, yesterday I re-installed the ...
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
106k 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
123 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
62 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
73 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
77 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
55 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
459 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
51 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
81 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
156 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
681 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
61 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
11k 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 ...
1
vote
1answer
88 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
533 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
155 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
2k 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
8k 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
757 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
50 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
327 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
41k 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
101 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
213 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 ...