Questions about Battery life (how long each charge last) or/and Battery Durability (how long until it needs to be replaced) should use this tag.

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1
vote
1answer
389 views

How do you change the screen background on Nexus S?

Just bought a Samsung Nexus S. No manual came with it. Apparently the moving default screensaver eats up heaps of battery life and I am not getting much battery life out of this new phone and I am ...
1
vote
3answers
359 views

How to keep my battery life? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android phone? Today I woke up after a night without charging my phone (galaxy s2). and he's dead, last night he was almost ...
1
vote
1answer
387 views

Number of Wi-Fi channels to be used?

Under advanced wifi settings one can change number of Wi-Fi channels to be used (11, 13, 14). Does anyone have a clue on how does this property affect battery drain? I know it should be configured ...
4
votes
2answers
3k views

How can I tell what is really draining my battery?

I know that by going to Settings > About Phone > Battery Use, I can get some idea of the applications that are using up the most of my battery. I see things like "Cell standby", "Phone idle", ...
7
votes
3answers
513 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 ...
3
votes
3answers
246 views

What is my phone doing at 1 o'clock in the morning?

I have recently installed JuiceDefender (JD) and along with it JuicePlotter (JP). JP gives me a nice graph about my energy consumption over time. I noticed that around 1 A.M. my phone uses up more ...
6
votes
2answers
358 views

Droid 2 Global - Will switching from Global to CDMA-only improve battery life?

I recently got a DROID 2 Global with Verizon and am looking to maximize my battery life. I am aware of the need to dim my display, disable Wi-Fi and GPS when not using it, increase sync intervals, and ...
1
vote
1answer
414 views

Connecting to internet using Wi-fi portable hotspot or bluetooth? which one is more battery saving?

I have EDGE internet connection in my Samsung Europa I5500L (Froyo 2.2). I can connect to the Internet from my laptop using both bluetooth or making a wifi hotspot from the device using that EDGE ...
5
votes
1answer
166 views

When to know it's time to replace the Nexus One battery?

As we all know, battery consumption rate (i.e. "per hour") is not very standardized and its highly dependent on actual use, per user. This makes it very difficult for me to know whether I need a new ...
4
votes
2answers
262 views

Does Gingerbread use extra battery power to make calls when the phone has poor signal?

Since I got this phone (Galaxy S, originally on Eclair, then Froyo) and switched network provider, I've had major problems with the signal at home, and call quality as a result. Following the upgrade ...
10
votes
4answers
703 views

Gingerbread has drastically reduced my battery life

I have a Nexus One, and since upgrading to 2.3.3, my phone lasts several hours less compared to 2.2.x. I've swapped out to a new battery, which didn't make a difference. In about 14 hours (of nothing ...
1
vote
2answers
3k views

HTC Thunderbolt: Why do I have serious text messaging and battery problems?

I just bought a Verizon HTC Thunderbolt Android phone. My battery lasts just 3 or 4 hours... the phone has to basically be plugged all the time. Any suggestions on how to improve this situation? Also, ...
5
votes
1answer
281 views

Does APNdroid eat battery?

Someone suggested that APNdroid will cause your battery to drain because your phone is continually attempting to connect to the disabled APN. Makes sense, but I wonder if there's something I'm ...
1
vote
0answers
264 views

Android 2.1 - MyTouch Slide 3G - Tips to Fixing Slow Phone & Poor Battery Life [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android phone? What are the best applications or best practices for fixing slow operating phones and poor battery life on ...
7
votes
1answer
593 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% - ...
7
votes
5answers
830 views

Enabling GPS flag on android preferences: what is the battery impact?

Even if there are many questions regarding Android and GPS my doubt is really specific to the user level location settings. Supposing I've enabled the GPS settings, say from the Power Control widget, ...
21
votes
10answers
16k views

How does power usage for data over WiFi compare to data over 3G? (Ignore LTE for now)

If you have unlimited data over 3G so that cost is no option, which is more power efficient? Using the WiFi or 3G connection for data usage? Extending battery life being the goal
2
votes
2answers
9k 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 ...
2
votes
1answer
974 views

Why does my EVO Android phone screen keep turning on?

I have an HTC EVO and I can be sitting around doing nothing, when all of a sudden the screen comes on and stays on. I try to turn it off, but it keeps turning back on - sometimes after a second, ...
39
votes
4answers
18k views

Do bright wallpapers spend more battery than dark ones?

I started wondering about this when I realized most websites I visit have white backgrounds, and I know that the screen is usually responsible for most of the battery usage. Since I can't change the ...
2
votes
1answer
420 views

Locale powersave plugin & Power Control widget

I use Locale app with powersave plugin. 3G is usually switched off except during scheduled syncing to save power. There are occassional situations when I would like to use 3G and I would like switch ...
9
votes
2answers
1k views

Power draw from GPS - Does granularity affect amount of power drawn?

We all know that GPS draws a considerable amount of battery power. Does anyone know of any studies that test the "granularity" of a GPS signal with how much battery is consumed? I'm not talking ...
5
votes
2answers
2k views

How to optimize energy consumption during GPS tracking?

Very often I use my phone and the app MyTracks or GPSTrackerLite to track my hiking/biking tours. This really works great and I'm thrilledy by the lot of possibilities in combination with google ...
1
vote
3answers
402 views

Battery Life on Desire HD

Why does the battery for android phones perform much better after 2 or 3 weeks of usage? Is there any logical reason?
5
votes
4answers
5k views

Android Antivirus Software (solution and battery life relevance)

Is there a security solution for Android that's vastly regarded as "the best" one at the moment or is it like in the PC world where there are 3-4 which are "the best"? Also, what should I expect to ...
7
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 ...
16
votes
2answers
4k 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 ...
6
votes
2answers
587 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?
29
votes
3answers
35k 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 ...
12
votes
1answer
1k views

Which method of wireless tether uses the least amount of power? Bluetooth or Wifi?

If I'm going to wireless tehter to my Android phone what method drains the battery the least? Wifi or Bluetooth?
4
votes
3answers
3k views

How can I prevent my Desire HDs battery from draining overnight?

I've recently got the new HTC Desire HD, which has a poor battery to start with (1230 mAh), but in the last two weeks I've had several nights waking up with a dead battery. The first few nights, I ...
8
votes
4answers
11k views

Will constantly having Bluetooth on drain my battery too fast?

I'm thinking about making an app which will require Bluetooth to be available at all times. However, if this reduces battery charge life significantly, then that's kind of a show stopper. Can anyone ...
4
votes
1answer
1k views

Can anyone reccomend a 2g / 3g switching widget?

I've just got my new HTC Desire HD and I want to switch 3G on and off as required. I used to do this on my old HTC magic and got quite good battery life compared to some friends with the same phone. ...
2
votes
2answers
635 views

Battery Statistics Viewer crashes every time

I have a DroidX with Android 2.2 I went into the Battery Usage settings Settings > Battery Manager See a fual cell looking battery image that says Touch for usage statistics, so I was like awesome ...
8
votes
2answers
704 views

Easiest way to reduce power consumption to phone only

Sometimes I'm in a situation where I can't charge and want to have phone service as long as possible. I won't care if nothing else is enabled. What's the easiest way eliminate as much other power ...
3
votes
2answers
3k views

What can I do to increase battery life on my Android tablet?

Tablets have different usage profiles than phones. So many of the "Phone" suggestions don't apply. So, what can I do to get better battery life on my Android Tablet. (TechPad 7" Tablet from ...
14
votes
1answer
3k 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?
10
votes
7answers
5k views

What effect does tasker/locale have on battery life?

Locale and tasker look pretty cool. How much effect will they have on battery life?
7
votes
5answers
14k 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 ...
0
votes
0answers
584 views

Battery conservation? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android phone? What are some general ways to improve the battery life of my phone?
3
votes
3answers
567 views

Ways to improve battery life on Droid Incredible?

Out of the box, I noticed my Incredible has a lot of stuff running/turned on by default. Besides the basics of turning off WiFi, GPS, and BlueTooth when I'm not using them, are there more steps I can ...
4
votes
5answers
909 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?
2
votes
2answers
2k views

Which uses more power/drains more battery: HTC Evo 3G or 4G?

I've read mixed reports online about which radio uses more power -- 3G or 4G. Has anyone done any semi-scientific tests that would answer this question? When constantly downloading data over the ...
3
votes
1answer
393 views

HTC Evo - Can Wi-Fi Radio Sleep?

I've noticed that when actively downloading a lot of data, the Wi-Fi radio uses much less power than the 3G radio. However, when the phone is not being used much, the 3G radio will sleep but the ...
3
votes
1answer
964 views

Improve Android battery life by lowering CPU freq

I would like to know if it could be possible to use adb (Android Debug Bridge) to tell the phone to lower its CPU max freq. I'd like to use less battery if possible, and in my use case I don't mind ...
8
votes
2answers
2k views

Turn off cellphone (SIM) radio

How do I turn the cellphone (SIM) radio on an Android phone? The radio consumes a lot of power (30-70%), especially when the phone is idle. Sometimes I only need to use other functions (e.g., clock, ...
198
votes
6answers
49k 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 ...
14
votes
6answers
1k views

How can I improve the battery life on my device? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android device? My Desire is absolutely great, but with my usage the battery life is really a big problem. I have a few ...
5
votes
3answers
5k 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.
124
votes
20answers
89k views

What can I do to increase battery life on my Android device?

What can I do to get better battery life on my Droid? Battery life seems awful. Less than 15 hours or so on normal usage.