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

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2
votes
1answer
3k views

I can't connect my Samsung Galaxy SL GT-I9003 via USB

I can't connect my Samsung Galaxy SL GT-I9003 via USB. When I try to connect via usb mode the phone doesn't respond, it only charges. I tried restarting and restoring my device, but it still won't ...
1
vote
1answer
14k views

Samsung Galaxy Tab GT-P1000 USB Cable Problems ; Charging Problems

Galaxy Tab is an old tablet.Yesterday,I can "resurrect" it from the dead,and I buy a fake USB cable to charge and exchange data. Since I have a worser phone than the Galaxy Tab,I really want to play ...
0
votes
0answers
23 views

Nexus 5X stays awake after charging

Nexus 5X running 6.0.1 shows awake after disconnecting charger cable. Reboot helps but later the awake state persists if I connect charger back.
0
votes
0answers
12 views

Samsung Galaxy GT-I9070 charging indicator persistent

This phone of a friend of mine has a weird problem. Whenever the phone is disconnected from the charger, the battery indicator continues to show "charging". This goes away only after a phone restart. ...
0
votes
0answers
19 views

Phone won't charge

My 3 week old Galaxy S6 won't charge. When I plug it in it will show the charging sign/logo but it won't charge. Each time I turn it on it says it's only on 0% and even when connected and a "being ...
0
votes
1answer
23 views

Can I charge Galaxy Tab S2 while using MHL adapter?

I'm looking at an MHL adapter provided by Samsung. I have a Galaxy Tab S2 and wonder if this adapter would allow the device to charge up at the same time as mirroring the screen to my TV. I already ...
3
votes
1answer
225 views

How to determine maximum capacity of a battery in mAh? - received fake battery

Is it an increasable value ? 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 ...
1
vote
2answers
4k views

How to calibrate a new Nexus 5 battery that's higher capacity than original?

Just got a KBTEL battery that's 3800 mAh compared to the original 2300 mAh nexus battery. I charged it dead overnight, and now its been running for more than 7 hours and the capacity shows below 5% ...
3
votes
1answer
114 views

Where are the battery capacity files located?

Background My current device Huawei Honor 6 comes with a 3100 mAh battery. I was therefore surprised to see 3C Toolbox Pro report the capacity as 4000 mAh. I mailed the developer of the app and his ...
0
votes
1answer
35 views

Galaxy S6 won't charge after drain to 0-1%, cannot boot

After letting my Galaxy S6 drain more than usual, I connected it to the fast charger a bit after it hit 1%, and left it for the night while still powered on. Next morning the phone was off. Powering ...
0
votes
2answers
2k views

Vixion IRUX Tablet battery will not charge

I bought this tablet recently in Tenerife. Can find no information about the manufacturer. Now the battery will not charge through the mains adapter. It did charge at first. However, I have found ...
0
votes
1answer
4k views

Cannot charge due to low battery temperature on Lenovo P780

My Lenovo P780 won't charge because the battery warning always pop up & says that charging is paused due battery's temperature is too low. I have checked the battery's temperature & it is ...
0
votes
1answer
27 views

Interchanging battery with a higher capacity battery

My Redmi 1s has a battery capacity 2050mAh (BM41). And the upgrade of the phone is Redmi 2 with capacity 2200mAh(BM44). Can I use this battery if it fits in my device? Will it creates any software ...
2
votes
3answers
15k views

What is the maximum charging current supported by Samsung Galaxy S3?

As the title says: What is the maximum charging current supported by Samsung Galaxy S3 (GT-I9300)?
1
vote
1answer
30 views

Charging during filetransfer

I have recently upgraded my phone from Android 4.3 to 6.0 in my Sony Xperia M. I'm pretty confused by the new behavior. Whenever I plug the phone to the USB cable, it is detected in the computer as ...
0
votes
2answers
34 views

Nexus 7 (2012) won't charge or start after a series of problems

A year or so ago, I bought an old Nexus 7 that was very slightly used (I took it off my girlfriend's hands). Everything worked fine, but I barely ever used it. Two days ago I broke it back out. I ...
1
vote
0answers
44 views

Why does my OnePlus One draw 60% more current if I turn off the screen AFTER plugging it in?

It's pretty simple: If I turn off the phone's screen and then connect the wall charger, the power supply draws ~6W from the wall, and this doesn't change if I keep waiting. If I connect the wall ...
0
votes
1answer
2k 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 ...
-2
votes
1answer
46 views

Does it hurt battery life to not fully charge and disconnect?

Dears, I think the question is quite clear from the title: if I charge my device and let it charge not fully but say, 60% and disconnect, does that hurt battery life? If so, what are the ranges you ...
2
votes
2answers
2k views

My Galaxy mini having trouble with charging

Today I noticed that my Galaxy Mini is not charging properly. In morning it was switched off even after charging for the whole night. Some weeks ago the same problem had occured, but some time after ...
-1
votes
0answers
30 views

Charging Rate Affected By Cable Used [duplicate]

When connecting my Micro Max to my laptop for charging via a generic MicroUSB data cable, it charged ~1% in 30min. Noticing this, I switch to a Microsoft MicroUSB data cable and it charged at the ...
1
vote
2answers
1k views

iRola DX752 does not charge after a while

The iRola DX752 purchased for Christmas does not charge. It worked for a while, but then does not work when plugged to an outlet either. Is this a known hardware failure? If it isn't, are there any ...
1
vote
2answers
55 views

What to do after replacing the phone's battery?

I have a Nexus 5 (1.5yo; I know, it's old but still worthy!) and the boy was heavily suffering from short battery discharges. I'm a phone heavy user so I figured out I had depleted the battery's life, ...
0
votes
4answers
6k views

Samsung Galaxy S2 shuts off when plugged in: screen goes black then a grey empty battery appears

Samsung Galaxy S2 shuts off when plugged in. The screen goes black then a grey empty battery appears for a second then disappears. This "flashes" several times in about 4-5 second intervals. I can not ...
0
votes
2answers
29 views

My tablet is not turning on

I have a tablet not two years old, a few days ago it was left in a hot truck for about two days. Now it won't go past "fast boot menu". I have tried everything, I even tried charging it and the ...
-2
votes
1answer
58 views

Lost Android's OS

I bought a Moto G (1st gen). It was upgrading and had around 1% battery and was charging, but simultaneously I unplugged the charger and the mobile turned off and now it's not turning on. It's not ...
-1
votes
0answers
36 views

Do i still need 8 hours charging for first time charging? [duplicate]

In the past, for new phone I was told to charge it for 8 hours for first time charging. Do I need to still do it on recent generation of Android phone?
3
votes
2answers
59 views

How can I tell if I need to replace my battery?

I have a refurbished Galaxy S3. Sometimes it charges to 100% while powered off, but reports 51% as soon as I start it up. Lately, it goes down to 50% or lower even right after charging. I haven't ...
0
votes
0answers
232 views

HP Slate 7 will not charge

My sister got a quite new HP Slate 7 running Android 4.1.2, but the tablet won't charge. When I charge it while it's running, the charging is flickering between charging and not charging. If I charge ...
2
votes
3answers
513 views

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

I have Samsung Galaxy Note 3. If I charge my phone using the same adapter but with different cables, does that affect the charging speed with the USB 2.0 cable or 3.0 cable, supposing the 2.0 cable is ...
0
votes
1answer
63 views

Car charging at below 500mA

I've plugged the AC charger for my Samsung Galaxy S4 into an inverter connected to my car's DC outlet. The inverter is able to power my laptop AC adapter without issues. The S4 charges, but not at ...
0
votes
1answer
77 views

Charge older Samsung phone (with Quick Charge 1.0 technology) at full rate

I own a Samsung Galaxy S Relay, which is an Android phone a few years old. It's sort of similar to the Samsung Galaxy S III, but it also includes a slide-out physical keyboard. Like the Galaxy S III, ...
0
votes
4answers
322 views

Turning off “charging” sound effect on Xperia Z3 Compact

Is it possible to turn off the sound when the charger is connected? I have got the answer from Sony Support that this is a "feature".
1
vote
0answers
33 views

alcatel onetouch FierceXL battery is draining too fast

I've only had my onetouch for 3 weeks now and all of a sudden the battery started draining rapidly, even when I plug it into the charger, and charging very slowly. If i use the phone at all when its ...
3
votes
4answers
8k views

Galaxy S3 is stuck at Samsung logo splash screen and won’t charge

A little bit of help would be highly appreciated. A few days ago, my Samsung Galaxy S3 started freezing randomly. I had to remove the battery in order to restart it. Yesterday the problem got worse: ...
1
vote
1answer
45 views

WiFi only working while charging the phone

I am being experiencing this very strange issue in the last couple days. I have a Samsung Galaxy S3 Mini with an (unofficial) build of Cyanogenmod 11. Is has been working fine for the last year with ...
1
vote
1answer
168 views

Powering Samsung J7 using an external DC power supply

I would like to turn on Samsung J7 using an external power supply. The problem is that it uses 4 pin (+,*,-,*) to connect to its battery. The first pin is the positive and the third one is the ...
1
vote
2answers
5k views

My Galaxy Tab 3 will only charge from the wall adapter from Samsung [duplicate]

I'm going on holiday soon and we planned to take a USB hub to charge all of our devices rather than take several wall adapters, however when I checked that my 7" Samsung Galaxy Tab 3 would charge, I ...
2
votes
3answers
704 views

Get the charging rate without external hardware (e.g. multimeter.)

Android.SE user intuited observes: I've noticed that my S4 doesn't always charge at its maximum rate of charge, even when it seemingly should. For example, car DC adapters that claim to provide up ...
23
votes
7answers
3k views

Is power consumed from battery to run the phone when charging?

I want to download torrents while keeping the device plugged to charge. My device is made by Samsung. Is the power consumed from charger, or battery, to power the device when charging? Will my ...
4
votes
2answers
288 views

My phone doesn't always charge at full speed, even with certain 2-amp chargers. What are the necessary conditions for it to charge at full speed?

I've noticed that my Samsung Galaxy S4 doesn't always charge at its maximum rate of charge, even when it seemingly should. For example, car DC adapters that claim to provide up to 2.0A current only ...
3
votes
1answer
486 views

USB charger produces high-pitched noise while the battery is full

I have Nexus 5 and I recently bought the European version of the PowerCube, which combines three power outlets with two USB chargers. I noticed that as soon as my smartphone's battery is full, it ...
5
votes
3answers
22k 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 Android 4.4.2 Touchwiz software, but the new one has some odd behavior. I set smart screen sleep (or timeout, how it's called) ...
5
votes
2answers
265 views

Forcing higher USB current

The big problem: Like a lot of people, we are finding that our tablet does not maintain charge when connected to USB (PC or other device, not AC jack, we need data and charging simultaneously). What ...
2
votes
1answer
775 views

How to connect both a monitor and a keyboard to a LG G3?

Using USB-on-the-go I can connect a keyboard to an LG G3 and using a slimport adapter I should be able to connect a monitor. Is there a way to connect both at the same time? Or even better, connect ...
0
votes
2answers
1k views

How to connect Samsung J7 via USB but disable charging?

I would like to know if is it possible to connect my smartphone to a pc via USB without charging it? It would be very useful to be able to disable charging (but still allow USB tethering, ADB ...
0
votes
1answer
4k 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
111 views

Can't charge/power on Nook HD+

The device won't power on. The screen and status light show no indication of activity when pressing or holding the power button (or any button / pairwise combination of buttons for that matter). The ...
11
votes
2answers
19k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, Is there a downside to using it?
29
votes
3answers
4k views

Android phone “charging slowly”: How to make it faster

When I put my Android device to charge, the lock screen says "Charging slowly": Is it a particular software setting that tells Android to charge slowly? How to make Android charge fast?