For questions specifically about issues with battery charging or power supply.
1
vote
2answers
2k views
Will playing a game in a Android phone while charging damage or cause harm to the battery or the phone?
Will the following situation damage or cause any harm to the battery or/and the phone:
The phone is being charging (regardless it is using the electrical outlet or via USB) and ..
You are playing a ...
2
votes
1answer
3k views
HTC One X Does not charge or turn on
A day ago my HTC One X would not turn on. When I booted into developer mode it said at the top "**LOCKED**" and "Security Warning" (or something similar). It also said "cpu-bootmode: disabled". I was ...
4
votes
2answers
146 views
Do phones have a power supply?
This is definitely a noob question, I'm not an engineer but as far as my knowledge goes, the power supply on a phone would be its battery. However, my Nexus One stopped turning on recently, the ...
4
votes
1answer
383 views
USB charging in host mode [duplicate]
Possible Duplicate:
Using an OTG cable while charging
Recent versions of Android allow USB to operate in host mode. But is it possible for them to be powered/charged via that same USB port ...
1
vote
1answer
1k views
can sony xperia u(st25i) 's otg be connected to external power?
Can Sony Xperia U be connected to a Y-Cable to provide extra power for OTG to avoid phone battery consumption?
I'm asking this because the phone is already giving power ,will that make a short ...
1
vote
1answer
94 views
Kindle Fire Power Adapter Specs
I have misplaced the power adapter for my v1 Kindle Fire. USB charging works but is dog slow. What are the specs of its adapter, including any branding, as they're never labeled properly. Also, a ...
4
votes
1answer
2k views
Can I use Asus Transformer power supply and dock as with regular laptop?
I couldn't find this information in all reviews, so I am asking here about it -- I would like to get such experience with Assus Transformer:
I put everything together -- I plug power supply into the ...
2
votes
0answers
144 views
How can I turn off the notification for the power plug connection?
My Samsung Galaxy S3 with Android 4.1 plays a sound every time I connect it to the power plug. Is there a way to turn that off without affecting all other notifications?
4
votes
1answer
2k views
HTC mains-to-USB charger: use to charge other non-HTC but USB-chargeable devices?
My HTC Desire Z came with a charger that consists of a mains electric plug with a USB socket for attaching the phone to to charge via USB.
Other devices such as the iPod touch can be charged via ...
3
votes
2answers
463 views
Is battery calibration important for Android phones?
I heard that battery needs to be calibrated for a first few usages. I heard that battery needs to be calibrated every 40 charge cycles. I heard that i must not let battery get too low and not ...
3
votes
1answer
177 views
Does my Android phone uses battery or outlet power to operate while being charged?
I am curious about knowing which power source does my android uses up, while it is being charged while switched on..
I know i can test it by keeping it in charging and pulling the battery.. but i am ...
6
votes
1answer
224 views
Does the processor speed have any bearing on the time taken to charge?
I have a rooted Samsung Galaxy S II i9100 running the default Sammy Android 2.3.3 on the Siyah Kernel 2.0
I use SetCPU to change my processor speeds to conserve battery life during the day.
Will ...
1
vote
1answer
187 views
Is it ok to charge my Nexus S with an iPhone power adaptor? [duplicate]
Possible Duplicate:
Is my phone liable to explode if I charge it with a charger that came with a different phone?
I have an iPhone charger (produces 5V and 1A output). Is it okay to use ...
4
votes
3answers
7k 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 ...
2
votes
0answers
127 views
How to keep CPU off when charging?
When I connect the USB power source, it makes CPU to stay on (even though "Development->Stay awake" is off).
When charging from a weak power source if makes battery to drain even faster than is case ...
1
vote
0answers
341 views
sd card keeps getting unmounted when htc sensation is being charged
i have an htc sensation and it keeps saying that the sd card has been removed when its still in the phone. it will also say that the sd card has unmounted when it is charging What is going on?
0
votes
1answer
150 views
Android Experiments drain battery
While I am experimenting with Android I found it annoying that the device even if is plugged in on the PC using a USB is discharging.
THe problem is that I am performing some intensive experiments ...
1
vote
0answers
120 views
Samsung Galaxy tab 10 does not start up
My tablet won't start. With the USB cable connected I can start my tablet using the "power & volume" trick.
When in prompt menue for various reboot options it says in yellow text
Can't access ...
10
votes
3answers
3k views
Are Android chargers universal in terms of power (Voltage, amperage)?
I would like to buy a car charger, wall charger and USB cables for my Samsung Intercept. However, $20 for a charger seems expensive and I want to avoid getting ripped off. The Samsung Intercept Manual ...
1
vote
1answer
343 views
HTC One X was dropped and now it doesn't charge or turn on
Last night, my HTC One X was dropped. Suddenly, it became so hot at the back and on the screen. After an hour or so, the phone started to cool down.
But, it doesn't charge or turn on; even the ...
1
vote
1answer
411 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
1answer
112 views
WiFi tether without losing battery
So, as everyone already knows, when tethering data over WiFi your battery may overheat/lose battery/etc. What I want to do is while in my car:
Stream internet over WiFi to >1 person
Navigate with ...
12
votes
3answers
3k views
Battery - do they last longer if recharged when empty?
I'm about to buy a Samsung Galaxy Ace (it's not much expensive and I think it's a pretty good phone), however everyone has been complaining with the battery life but admitting that isn't bad compared ...
4
votes
4answers
769 views
My Milestone doesn't always charge
I have a Milestone and sometimes when I plug my (supplied Motorola) charger in the 'charging light' on the side does not illuminate and the phone does not charge. I think that this may also happen ...
2
votes
3answers
8k views
Can USB charging (via mains adapter or from PC/Mac) of Android tablets be the main, primary method of charging? Or are there design issues?
Are there design issues with tablets being charged by USB not seen with Android phones?
I saw this on another forum, what are your thoughts on this with regard to my question?
...
2
votes
0answers
244 views
Verizon Galaxy Nexus Discharging When Plugged In Even After USB Replacement
I've got a Verizon Samsung Galaxy Nexus that as of a few weeks ago quit charging - in fact it quickly drains the battery (discharges 2% / minute if not more) while plugged in. I tried different ...
5
votes
2answers
3k views
How to make screen stay turned off when plugging charger?
When I plug charger into my phone with screen off, it always turns the screen back on. This is slightly annoying at night. Is it possible to configure android so that the screen stays off and charging ...
7
votes
3answers
281 views
Is there a way to tell when the battery is actually at 100%
I recently acquired an HTC Desire Z / G2, and installed Cyanogenmod 7 onto it. Something I've noticed though is that sometimes the battery drains very quickly, and sometimes it does not. Since I have ...
11
votes
3answers
10k views
Where is “Stay Awake” option in Ice Cream Sandwich on the Galaxy S3?
I just upgraded to the Samsung Galaxy S III (Ice Cream Sandwich) from the Motorola Droid Bionic (Gingerbread). On my Bionic, there was a "Stay Awake" check box that made it so my "Screen will never ...
4
votes
1answer
3k views
How do I turn on the battery full notification sound?
Similar to this previous question, but I want to enable the battery full notification sound, not the opposite :)
My Galaxy S used to make a nice beep and switch the screen on briefly when the battery ...
2
votes
1answer
5k views
Prevent ICS From Mounting USB Storage
I have a Motorola Droid Razr Maxx running Android 4.0.4. I'd like to prevent ICS from mounting USB storage every time I plug it into a USB host. I just want it to charge by default. I am very ...
9
votes
0answers
88 views
How can you prevent a Kindle Fire from auto-mounting on a Mac when you plug it in to USB?
I've got a Kindle Fire and I like to plug it in to my Mac to charge up (and also to do some development.) It works fine but it is annoying to have to unmount it every time.
Is there any way to ...
19
votes
3answers
7k views
Do I have to charge my phone before I use it the first time?
When I got my last phone, a SE k850i, I was recommended to charge it fully once before I even turned it on. Does this apply today as well, for my coming HTC Desire HD?
Why was I recommended to do so ...
3
votes
2answers
881 views
Can you charge a Galaxy Tab 2 7" with a charger from Galaxy Tab 10.1?
I've already got a charger for the Galaxy Tab 10.1 and I'd like to be able to use it charge both that and a Samsung Galaxy Tab 2 7". It seems to work, but I was wondering if there is any sort of ...
6
votes
4answers
4k views
How can I change screen timeout based on whether my phone is/not charging?
I'd like my screen to stay lit while charging but have a timeout when just on battery. Is ther any way to do this?
7
votes
1answer
4k views
How do I disable the lock-screen when my Samsung Galaxy S II is charging/connected via USB?
When I develop for my Samsung Galaxy S II, the screen locks as usual after the configured time. However, for development it would be practical if the phone would just stay awake while it is connected ...
5
votes
2answers
1k views
How can I disable the front status LED when charging my device?
Charging my smartphone the front LED is always shining annoyingly green. This bothers me especially while reading an ebook which is why I am looking for a way to disable this feature.
So how do I ...
1
vote
1answer
264 views
How to prevent Nexus 7 of charging the battery every time when connected to a USB?
Hello fellow Android enthusasts,
I recently bought a Nexus7 that I want to use for development. The thing is, every time I connect it to my USB, in order to test some apps on it, it starts charging. ...
1
vote
0answers
102 views
How to charge a new Samsung Galaxy tab & what to expect
I am now trying to charge my new Samsung Galaxy tab since morning and it keeps flashing on me. No signs of it being charged. I am unable to switch it on. Please, for how long is it going to have to ...
6
votes
3answers
715 views
How can I tell at what rate my battery is charging?
I've been told that different charging sources charge my phone at different rates, and have been told that some car chargers act at a normal USB rate instead of a rate closer to an AC outlet.
When I ...
0
votes
0answers
110 views
Why does my screen still turn on while charging? (CyanogenMod 9)
Why does my screen still turn on while charging? have to off manually by pressing power button
2
votes
0answers
307 views
Samsung Galaxy S stuck in boot loop when 100% charged
Before we start I should mention that I have not messed with the firmware in any way. But it seems that whenever I put it on charge and it reaches 100% capacity I turn it on and it gets stuck in a ...
3
votes
2answers
17k views
Samsung Galaxy Tab, charging technique through USB Cable
From Galaxy Tab is not being charged through USB Cable
@Chris Stratton
Tablets have larger batteries than phones and may be unable to
sufficiently charge from the half amp limit of a USB port, ...
12
votes
1answer
1k views
charging from power outlet or computer? to save battery lifetime
I realized that charging my HTC Desire (Android 2.1) takes longer if connected to computer compare to power outlet.
Does it matter which method I use to charge in terms of battery life time?
2
votes
0answers
299 views
How to properly charge a Lithium Polymer battery
My battery is Lithium Polymer. I want to ask the following:
Is a Li-Po battery essentially the same as a Li-Ion battery?
Can I use my phone while it's charging?
I've read that you have to calibrate ...
4
votes
2answers
233 views
Can the Droid Eris be charged on a PowerPlate Wireless Induction Charging Base?
Can the Droid Eris be charged on a PowerPlate Wireless Induction Charging Base?
14
votes
1answer
2k views
Charging over USB can be harmful?
Considering that charging over USB can take around 5 hours (to only 1-2 hours it would take from the wall mounted plug), can it be harmful for the smartphone battery if it's always charged from USB?
6
votes
2answers
2k views
How can I restore the display of the battery status on the lockscreen?
I have a Samsung Galaxy Fit - GT S5670 model. When I charge the battery, there used be a percentage on the pattern screen. Somehow it is not showing now. All it is showing the word "Charging" but no ...
0
votes
0answers
31 views
Constant USB tethering leading to charging issues [duplicate]
I have to run Samsung Galaxy Ace internet via USB tether. Will constant use overcharge my mobile and can this lead to problems? Wi-fi is not currently an option.
139
votes
4answers
15k 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 ...
