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

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0
votes
4answers
5k 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 ...
1
vote
2answers
269 views

How to care for a lithium-ion battery so that it will remain useful for as many years as possible

My question I own an Android smartphone with a lithium-ion rechargeable battery. I want the battery to remain at least somewhat useful as long as possible — even for five or ten years, if such ...
0
votes
0answers
12 views

Tablet report as charging with the charger unplugged

I'm having problems charging my Samsung Tab 2 device. It is reporting as charging after I unplug the cable, and when charging, it is drawing a small current from the charger. I've measured and it gets ...
1
vote
1answer
36 views

2014 moto x battery life

I'm experiencing an issue with my 2014 Moto X's battery running Android 5.1 and I was wondering if someone have any suggestions or something ... for example, yesterday I had about 30% left of my ...
0
votes
3answers
2k views

what could cause a sudden drop in battery life?

According to my battery graph the phone went from 85% to 0 in an instant. I wanted to add a screenshot, but I do not have enough reputation. The last time I checked it was nearly full, and 7 hours ...
0
votes
0answers
28 views

Charging rate in Zenfone 5 is 40-90mA while Moto G shows 480-500mA with same charger and USB cable. What's the issue with former?

I have a T00J Zenfone 5, and last Sunday its charger broke. As I tend to use it in lots of places, I guess the stress on the cord was a little more than it could handle. I plugged it in on USB, and ...
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: ...
0
votes
1answer
1k views

HTC Desire C screen on while charging

My new HTC Desire C screen does not turn off while charging. It is running ICS (Android version 4.0.3, HTC Sense version 4.0). I have went into Settings > Developer Tools > Stay Awake (OFF). It ...
1
vote
1answer
39 views

Nexus 4 won't charge or boot (red light)

I have been reading a bunch of articles on ways to fix this "red light" issue. My issue seems a bit different from most articles as the red light does not show up when I plug in my charger. Articles I ...
16
votes
11answers
33k views

Galaxy Tab is not being charged through USB Cable

Currently i am using Samsung Galaxy Tab, model is GT-P1000, to test my application, so i usually attach it with PC through USB cable and it is attached for a whole day though it is showing low battery ...
0
votes
0answers
321 views

Sony Xperia Z3 flickering between charging and discharging

When I plug my phone in it often has problems charging. Both the green led light and the charging icon will flicker on and off every half a second. This seems to happen at different times during ...
0
votes
1answer
2k 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 ...
-1
votes
2answers
23 views

what can be the problem behind if my android phone charges just 2-3% in 1 hour? [closed]

This happens with me so many times. I want my answer please tell me. IOt will be a great help for me. I believe in stack exchange !!
0
votes
0answers
36 views

HTC One M8 will not charge

My HTC One M8 was run over by a bus, literally a bus. I brought it for repair and the guys replaced the screen and it powered up fine. However, the battery would not charge. The phone repair guys ...
2
votes
2answers
5k views

Device Steadily Discharging While Plugged Into AC?

Question: My device (Galaxy Note 2 running the stable CyanogenMod release) is charging extremely slowly and discharges while it's plugged into AC power. What happened to cause this and what's ...
0
votes
3answers
9k 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
2answers
84 views

Xperia SP looks like it's charging, but it doesn't charge

My phone is Xperia SP, it's on CM 12.1, unofficial build (because the official one is buggy due to bad kernel). It has been bought second-hand, so I'm not sure about its history (the phone was in a ...
4
votes
2answers
4k views

Increasing my phone's charging rate while tethered

I have a Samsung Galaxy S3 and a laptop with 2 USB 3 ports. When tethered to my laptop (to provide Internet access via GSM/HSPA data), the phone charges very slowly, especially if I am using it for ...
0
votes
1answer
24 views

How to know which Dock Connector my Galaxy S2 has?

There are several revisions for Dock Connects/Charging Ports per model. I would like to know if there is a way to find which revision is installed on my phone without opening the device. If that's ...
1
vote
2answers
162 views

Quick drain of battery in new phone huawei g play mini?

Here is a screenshot of my battery drain. Is it normal , or should I go to service center ? My previous phone had much less sloppier curve . When I bought the phone I charged it upto 100% and then ...
0
votes
3answers
4k views

Samsung S duos - showing charging symbol but percentage not increasing

I have samsung s duos. Suddently one day, when i was charging .. though the indicator shows charging, the battery level keep going down. I restarted mobile... still same issue. Then i tried with ...
0
votes
0answers
179 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 ...
1
vote
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 ...
0
votes
0answers
49 views

One-click rooting app failed to root, and now prevents device from booting and charging

I downloaded a one-click rooting app onto my RCA RCT6773WW2B (RCA 7 Voyager 2). ~25% of the way in, it rebooted the device. The root failed, so the device rebooted again, and the app once again tried ...
0
votes
0answers
12 views

Android- Sony Z not charging

have a sony With two years. For an update to Android 5.0 I have a problem with charging my phone when it is switched off and the battery totally 0 % would normally loads, but when the phone is ...
0
votes
2answers
1k 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
0answers
27 views

HTC Rapid Charge 2.0 overheating battery

Since a few days ago I'm charging my HTC One M8 using the HTC Rapid Charge 2.0 charger. It does indeed charge fast, but I've noticed that the battery gets really hot. After installing the DU Battery ...
0
votes
0answers
1k 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 ...
1
vote
1answer
10k 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 ...
-1
votes
0answers
20 views

Is there a way to check amount of electrical power stored to battery during charging?

For example my old PC USB 2.0 port provides 500mA at 5V, Samsung ETAQU10EBE charger supports 700mA at 5V, Samsung EP-TA10EWE charger supports 2A of current and some devices support for example quick ...
0
votes
0answers
29 views

Samsung Galaxy Note 2 doesn't charge when connected to charger but shows USB connector notification

I'm using Samsung Galaxy Note 2. I rooted this phone and flashed a custom ROM. After three months I started facing an issue that whenever I connect my charger the device does not charge, and shows ...
0
votes
2answers
2k 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
25 views

Why is the screen acting weird while charging?

I noticed that when I charge my phone with a cheap charger that I bought from Ebay, the screen acts strange: It suddenly can't position my taps correctly and It detects swipes as taps. After a ...
0
votes
0answers
18 views

Hp slate 7 will not charge

My sister, bless her soul, is having her birthday tomorrow, and the tablet she has will not charge. Is there any way to sort this out? Thanks in advance from me and my sister! Tablet in question - ...
6
votes
6answers
62k views

How much power does a Galaxy Tab 10.1 charger need to supply?

The Samsung Galaxy Tab 10.1 comes with a special charger which (I'm assuming) provides a higher current output than the USB standard. Without it, the device can actually die, even if the USB cord is ...
0
votes
1answer
20 views

Weird battery issues

There's this phone I got, it belonged to my girlfriend's mom, but she just gave it to me since it stopped working and I wanted it. The problem is it won't charge. I'll plug it in and the screen will ...
0
votes
1answer
21 views

Exclude possibility of damage of Android device while chargin with another charger [duplicate]

Is it true, that if I have one Android tablet with mini-usb from Philips, one Android device with mini-usb from Sony, then if I connect Philips charger to Sony charger, then it is possibility for a ...
0
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 ...
0
votes
0answers
36 views

Battery connector pins showing strange voltages for a phone and a tablet

I have a Samsung GT-I9003 phone and a Samsung GT-P3100 tablet. Phone is rated 3.7V 1A, tablet is rated 5V 2A. Phone has an Input:100-240V 50-60Hz 150mA Output:5.0V 550mA charger, tablet has an ...
0
votes
0answers
1k 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
0answers
46 views

USB and charging port is not working after rooting

I have rooted my HTC Desire 620G with kingoroot. After rooting the phone is not getting charged while its switched on. The phone can be charged by switched it off. Also the phone can not be connected ...
2
votes
2answers
57 views

How can I tell how many milliamps my phone is drawing from the attached charger? Preferably without having to use a 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 ...
2
votes
0answers
45 views

Use “Lock Screen” as Daydream option

maybe its too simple a question, but I need to figure out how I can just use my lock-screen as daydream option for an android lollipop device. What I want is to see the normal lock screen while ...
0
votes
1answer
3k 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
2answers
99 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 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 2.0 amp current only provide ...
0
votes
1answer
30 views

How can I charge my aging Samsung phone (with Quick Charge 1.0 technology) at full speed?

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 ...
2
votes
1answer
218 views

Long term effects of charging Nexus 5 with the OnePlus One charger (fast charging)

A roommate has bought a OnePlus One (OPO) phone. When I tried charging my Nexus 5 with the charger of OPO I found that it charged my Nexus device amazingly fast. I'm talking 3-4 times faster charging ...
1
vote
0answers
94 views

Samsung Galaxy S4: After 5.0.1 update phone only charges when switched-off

While my phone was updating it was plugged in by the wall and charging. After the upgrade the battery was drained by the evening, and when I plugged it in to charge again, nothing happened. I ...
0
votes
0answers
93 views

usb OTG host mode and charging at same time with Moto G xt1033

I know specific android phones can have a usb slave device in otg host mode connected and be charged at the same time with this sort of cable: ...
1
vote
2answers
60 views

Is there a way to leave the phone plugged in, but schedule when to actually charge it?

Under my normal daily use, my phone would have around 50~40% battery power left before I go to sleep. I don't want to keep my phone plugged in to charge over night, but I do want it to be at 100% ...