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

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0
votes
0answers
88 views

Android tablet I2C Read Errors

i've a brand new Ramos i9 tablet and have big issues with the touchscreen and charging. I've rooted it, and before i send it in for repair, i'm trying to debug the issue (in hope it's only software). ...
0
votes
1answer
80 views

My Samsung Galaxy S 2 indicates it is charging but doesn't

My Samsung Galaxy S 2 indicates charging but is not adding charge to the battery. I have changed my charger many times but the problem continues. What's the solution?
0
votes
0answers
33 views

How can I make my Android phone request (negotiate for) more charge from (with) the host PC?

Hello there is a wonderful Q&A here about detecting how much charge your phone is drawing from the computer host: How do you check how much power a USB port can deliver? In my particular case, my ...
0
votes
0answers
13 views

Should I charge new LG G2 for 6 before first use [duplicate]

I just bought a LG G2. The shopkeeper asked me to charge it for 6 hours. Within an hour it shows that it charged 100%. Should I continue the charging to complete 6 hours like old fashion. Or ...
1
vote
1answer
90 views

Samsung Galaxy 3 is HOT

Sometimes after using my phone for a bit, it gets super hot where the battery is. When that happens, I close all programs and don't use it for awhile; it eventually cools down. This also happens a ...
0
votes
1answer
66 views

Why does Galaxy Nexus i9250 official car charger have 700mA instead of 1000mA?

I discovered that the official Samsung car charger is rated for 700mA, but my stock wall charger has 1000mA. Is that normal? If I buy the 700mA charger, there's the risk that with the navigator on, ...
1
vote
1answer
2k 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
1answer
16 views

Is there a way to determine the charging current available?

I have a Moto X that has recently stopped charging while in its car dock, even though it indicates that it's charging. I will diagnose the problem by eliminating the USB cable, the dock, and the ...
0
votes
0answers
77 views

ori ninetology upgraded software to galaxy s4 - usb port cannot connected to computer while the hp on

I just bought a second hand phone Ninetology Stealth II which originally was a Ninetology but the original owner upgraded the software to Samsung Galaxy S4. The problem he never told me about is: ...
0
votes
2answers
54 views

Connector allowing charger and usb computer connection as same time?

PoE lead me to idea of having some kind connector, allowing supplying my connected tabled with power from it's charger (5V 2A) and in same time being connected to computer (for backup or whatever ...
3
votes
0answers
120 views

Large difference in battery discharge, when Nexus 7 is on and off

My father got a brand new Google Nexus 7 II (2013) LTE tablet few weeks ago. Ever since first use, he was complying about battery discharge rate. Few days ago, I did some measures and I'm quite ...
1
vote
0answers
62 views

Micro USB cable - Intermittent

I have a http://www.amazon.com/gp/product/B004QOAGOQ/ "4-port USB charger". Recently I noticed that some Android devices e.g Nexus 7 (2013), charge very slowly when one particular micro USB cable is ...
0
votes
1answer
165 views

Is it okay to use USB 3.0 cable with USB 2.0 wall adapter?

I bought an LG Optimus One phone a long time ago. The phone came with a USB 2.0 cable + wall adapter. 3 months ago, I bought a Galaxy Note 3. The phone came with a USB 3.0 cable + wall adapter. The ...
0
votes
0answers
52 views

How do devices recognize their chargers?

Several android devices complain when they are not plugged into their manufacturer-designated chargers. One samsung tablet I own won't even charge if its not on its own brand charger. Is there some ...
2
votes
0answers
33 views

LG P880 Screen stays awake whilst charging

I have a phone that when I plug it in it turns the screen on and the doesn't go to sleep until I press the power off button. Is there a way to make the screen go to sleep automatically like when you ...
0
votes
0answers
32 views

How do I get my Android to recognize my portable charger?

I've bought a portable charger for my phone recently but once I switch it on, it charges for a minute tops before switching off. It seems as though the charger doesn't recognise my phone... is there ...
0
votes
1answer
51 views

Are wireless chargers specific to model numbers?

I found this charger on eBay: ...
0
votes
1answer
204 views

Droid Mini charging and battery problem

My Droid mini have a strange problem, when I am charging the phone with some USB cables it charges very slowly and phone battery discharging very fast. but when I charge with original cable it works ...
0
votes
0answers
6 views

Samsung Tab3 T311 doesn't charge when connected to laptop USB port [duplicate]

I have a problem when charging my Samsung Tab 3 (T311). The red cross symbol keeps coming up when trying to charge connected to my laptop.
1
vote
0answers
76 views

Is slow charging bad for the battery?

I know that charging the battery too fast can overheat the battery and shorten battery life. But is charging it slowly, e.g. from a USB 2.0 cable plugged to a laptop, also harmful for the battery? I ...
0
votes
1answer
458 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
1k 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)?
0
votes
1answer
49 views

How to deactivate the usb charging of my tablet from computer?

When I connect my Asus fonepad7 tablet to laptop via usb, the tablet starts charging. When my tablet is completely charged, its advised by the manufacturer to discontinue the charge. Now how to ...
0
votes
0answers
176 views

How to charge device while using OTG contoller? [duplicate]

I want to be able to use a PS2 controller with my Nexus 7 (2012) tablet to play games while also charging it. I have found a PS2 controller adapter to usb that should work on otg. However, I also want ...
0
votes
0answers
32 views

internet works only when on charging

I have huawei ascend y200, also I have problems with wifi. First there was a problem with obtaining IP address, but I fixed it with static IP. It worked for a while, but now it works only when charger ...
0
votes
1answer
28 views

What should my tablet be charging at?

I just got a RocketFish USB wall charger with 2.4 amps and 5 Volts. The charge meter that I am using is telling me that it is charging at 50 mA. I also notice that when I try to turn it off to charge, ...
4
votes
1answer
289 views

Battery indicator increase when not charging

Basically, two hours ago my battery level is at 8%, then an hour ago, it was at 9%. Now it's at 10%. Why is it going up even though it is not plugged in? Would I need to calibrate my battery? Note: ...
0
votes
0answers
62 views

Android auto power up after getting minimum Charge

When my Samsung android phone is power off and battery is completely out of charge and after that connecting the device with charger it do not start automatically. Do anyone can give me a solution ...
1
vote
0answers
2k views

Nexus 5 takes forever and a day to charge

Since I have installed franco Kernel on my device, charging takes longer than normal (I'd guess 4-5 hours?). But today charging became extremely slow. I plugged it in overnight and this morning it ...
0
votes
1answer
32 views

Charging/PC connection issues

I have tab 2 7.0 that will only charge when switched off and even then that's only sometimes, other times I get the battery boot loop. When device is on it says not charging in battery settings and ...
0
votes
0answers
94 views

what is the requirements to charge android tab via USB cable?

I wanna charge my android tab ( not a prestigious brand ) via a USB cable connected with my laptop. I tried but it wont charge, Is there any requirements to do that?
1
vote
1answer
435 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
299 views

HTC One is not charging

I have HTC One since few months. It worked fine, this is great device in my opinion. Today my battery ran out of energy. I plug in the charger, and there is no reaction over 30 minutes. It has ...
0
votes
2answers
135 views

Does the Google Authenticator app negatively impact a fully charged device

I have the Google Authenticator installed on my phone. I notice the codes are generated constantly. It appears the app is running constantly in the background. Does this app has a major impact on a ...
1
vote
1answer
196 views

KitKat issue: device turns on when plugged in

Yesterday I updated my Samsung S4 to 4.4.2 (I9500UBUFNA2 - Kernel 3.4.5-742022 18-Feb-2014) via Kies 3. If device is turned off then I plug in, picture of measuring battery image appears for 2 seconds ...
0
votes
2answers
254 views

galaxy s2 charging cable doesn't fit galaxy tab 3

They both have micro usb ports but i thought I could use my current galaxy s2 cables with the tablet and they don't fit. Are there different sizes and how can you tell when getting a cable? Thanks
2
votes
1answer
383 views

Possible to charge one phone off another?

What's stopping the ability of charging a cell phone from another cell phone? If I were to create a crossover/patch USB cable and connect it between two phones or tablets, would there by any way to ...
0
votes
3answers
144 views

15 Min my battery goes to 97% to 17%

Yesterday I was watching a video on my andorid GTP3-100, and my batter was at 97% after 15 min I looked at my battery it had gone to 17%, and it was draining battery fast and after 5 min its went to ...
0
votes
0answers
138 views

How to charge Galaxy S3 Power Case (320 MAH)?

I just got it, but can't figure it out. Do I charge the case with it ON the device, or do I take it off? Also there is a power button on the case. Should the lights be blinking? If I turn the case ...
0
votes
0answers
35 views

Mobile gets switched off when I start any application

When I browse the internet or open any application my phone gets switched off. But, if I browse the internet or open any application while charging it works. What might be the problem? The phone ...
0
votes
2answers
3k views

should you be on a tablet when its charging? [duplicate]

is it OK for the battery if you keep using the tablet while it's charging? And should you stop charging when it's fully charged.
0
votes
1answer
40 views

Get the chargin process intensity

I link my Samsung Galaxy S3 to the computer's USB port using a non-original power cord. I've found charging process very slow, so I would test the intensity whereby power cord supply energy to the ...
0
votes
0answers
45 views

30% cpu usage when charger unpluged. When pluged in, cpu usage drops to 2%

I have checked by external debugger and it seems that "batteryservice:update start" runs 10 times per second. Other battery processes are running very often too, only with charger unpluged. It's brand ...
7
votes
4answers
5k views

Nexus 4 problems when charging

My Nexus 4 is not charging when plugged into wall but it charges when connected to PC USB. When plugged into wall nothing happens, the battery icon shows nothing. This problem appears and disappears ...
1
vote
2answers
7k views

Does charging a phone with another phone's charger affect it in any way? [duplicate]

I have a Samsung S4 and because its charger is short I charge it with a Samsung Wonder charger. I am afraid that it can damage the battery or something. Will it?
2
votes
1answer
814 views

Nexus 5 touch response is slow while charging

My problem is simple. Touch response of my Nexus 5 is very slow while charging. I can't even unlock the pattern while charging. I need to draw it very slowly. My OS is Android 4.4.2. I have been ...
3
votes
1answer
208 views

Don't charge to 100% when always-on wall-plugged-in

I want to use a Google Nexus phone for an always-on wall-plugged-in WiFi tethering access station. It occurred to me that if I just do it like this, then I'm risking ruining the battery within a ...
1
vote
0answers
403 views

USB charge in android 4.2.2

I have an android 4.2.2 phone. When I connect it to my desktop PC, it is not charging (Showing as charging and disconnected repeatedly). Checked by changing USB cable, connecting to different PC, ...
2
votes
5answers
5k views

Slow Charging Battery!

I have a Samsung galaxyS3 the battery has been charging really slow. It can take up yo 10 hours to charge 100%. I have tried every thing I can think of. I've tried a new charger, new battery, shut ...
2
votes
0answers
204 views

500 charge limit on wireless charger for Nexus 4 / 5 (QI)

I recently bought a QI compatible charger for my Nexus 5. On the box it states, that the wireless charges up to 500 times. I don't understand why the charger is only able to charge my phone 500 times. ...