For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]

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6
votes
1answer
295 views

Do I have to calibrate my battery after a reinstall?

When I installed Cyanogen Mod 7, I 'accidently' clicked 'Wipe Battery Status' even though my battery wasn't fully charged. Now I have no idea what this exactly does (even more reason I shouldn't have ...
7
votes
1answer
519 views

Is it normal for Android System to be the top battery user?

Over the past couple of days, the battery usage of my new phone has been as follows: 34% - Android System 28% - Cell Standby 21% - Phone idle 10% - Display 03% - Google Goggles 02% - ...
2
votes
1answer
434 views

Will the Samsung Fascinate work without a battery?

Can I use a Samsung Fascinate with no battery powered only by the power cable? (I'm assuming this is a handset specific question, but let me know if I'm wrong and the answer applies to all Android ...
4
votes
4answers
211 views

Disable updates when at work?

How can I disable various social apps from updating while I'm at work (where I work with my laptop anyway)? The main point is conserving battery. (I have HTC Desire HD) I don't want to turn off wifi ...
2
votes
3answers
517 views

How can I see the full charge capacity of my battery?

I have a Samsung Galaxy S running Android 2.2. Is there any way for me to see the full charge capacity of the phone's battery, so that I can compare it to the spec? What I have in mind is something ...
4
votes
1answer
525 views

Can't get past the pulsating boot screen after complete battery drain

My phone ran out of charge this morning after I made a couple of phone calls in bed. I was too lazy to get out of bed to plug it in. When I plugged it in later, and pushed the power button, the phone ...
1
vote
2answers
8k views

My phone keeps slowing down and burning battery. How can I debug performance and cpu consumption? (DHD 2.2)

I know there are already a lot of threads about suggestions on how to improve performance and, strongly related, save battery life on your android. I also have tried most of the tools to diagnose ...
15
votes
1answer
4k 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?
24
votes
6answers
20k 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.
0
votes
1answer
956 views

LG-Ally won't charge

My LG Ally is out of battery and won't charge at all. I know the outlet is working. It's charged in the past just fine.. I gave it like 30 minutes plugged in, and power wouldn't do anything. No ...
6
votes
2answers
2k views

Can I leave it plugged in for charge all the time? -Samsung Galaxy 3 I5801

In short my question is - What is the battery level at which it starts charging again Samsung Galaxy 3 I5801 device when kept plugged in for charge all the time? If you want to know background and ...
14
votes
2answers
3k views

When should I start charging my Lithium battery?

The comments in this question say that I shouldn't wait until low battery charge level before I charge, because that reduces battery life (this is contrary to my understanding before that the faster ...
7
votes
3answers
4k views

How can I take a photo when battery <20%?

How can I take photo when battery level is less than 20%? My Samsung Galaxy S always says "battery low" and then closes the camera application when I try to. Is there a way to get around this? Or is ...
6
votes
2answers
566 views

Is there a black list of applications that drain battery fast?

Many people complain about some applications draining batteries fast because of bugs or misconfiguration. Is there a black list of such applications that are not energy-friendly?
4
votes
2answers
239 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?
7
votes
1answer
391 views

“Battery use” information screen not reporting apps

I've got a Samsung Galaxy S (international version) that I've just upgraded to Android 2.2 (Froyo) and now the battery usage page in settings (Settings => About phone => Battery use) only ever reports ...
10
votes
1answer
765 views

What does “Battery Use” tell and how is it implemented?

I have several questions about "Settings -> About Phone -> Battery Use", mainly because I don't understand what exactly those items mean. (1) Does "Cell standby" indicate the energy used by the radio ...
23
votes
3answers
16k 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 ...
59
votes
11answers
65k views

How to disable battery full notification sound?

When battery has been charged full, my Galaxy S phone gives the same notification sound that is used when I receive SMS. Is there a way to disable the sound without also disabling sound from SMS? It ...
11
votes
5answers
583 views

Wearing down battery as fast as possible

I am trying an experiment and I need to wear down my Droid Incredible's battery as fast as possible. What apps are known battery hogs? I've already beaten Angry Birds so that one is off the list for ...
7
votes
3answers
2k 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 ...
8
votes
5answers
11k views

How to show the battery percentage remaining in numbers?

At the moment Android 2.2 has a pretty incomprehensible icon of a battery that shows remaining strength. Is there a way to switch that to a numeric display (like is available on the iPhone)?
6
votes
5answers
12k views

Is there an app that will drain my battery?

Are there any apps that will specifically help to drain a battery down quickly? The scenario I would want to have this is if I want to quickly drain the battery so I can charge it fully again. Some ...
3
votes
2answers
543 views

3G Radio Always on When Screen On?

According to JuicePlotter, my HTC Evo's 3G radio is always on when the screen is on -- even when doing absolutely nothing. I tested this by turning the brightness down to 1 and opening the settings ...
19
votes
4answers
2k views

What causes battery to drain faster than it can charge?

I have a Moto DROID (v1). On a trip from Tyler, TX to DFW airport I had my phone in the car dock and charging. I was using Navigation for directions to the airport and also had Listen running to ...
11
votes
4answers
2k views

Will any Micro USB cable work to charge my Incredible?

The plug sure looks like any old micro USB plug. Will another cable (like the one from my digital camera) work to charge the battery, or do I need one specifically designed for my phone?
4
votes
1answer
6k views

Cell standby and Phone idle

On the battery use screen, what are the differences between Cell standby and Phone idle items?
4
votes
3answers
244 views

Why does my Milestone Droid erroneously report a drained battery once every few weeks?

Every so often, my phone (Motorola Milestone, firmware 2.1-update1) decides that the battery is almost drained and that I have to turn the phone off. This may happen just a few hours after charging ...
4
votes
8answers
320 views

Leaving wi-fi on all the time

Does it highly affect the stand-by time to leave wi-fi open all the time on my phone?
4
votes
5answers
874 views

power consumption by application?

Since cellphone application software requires extra power for processing. Is there any application software that indicate power consumption by particular application?
171
votes
5answers
28k 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 ...
5
votes
3answers
4k views

How to break in a new cell phone battery?

Whats the best way to break in a new cell phone battery? I just got a replacement battery for my Motorola Droid and so far through 2 cycles it is barely lasting a few hours.