Battery life is important for mobile devices. Questions regarding battery life should use this tag.
2
votes
2answers
242 views
How can I prevent the battery in my Nexus S from draining overnight?
I have a Google Nexus S and for the past 2-3 days whenever I go to sleep the battery drains completely overnight. I mean when I go to bed the charge on my phone is plus 90% but for the past 2 days ...
12
votes
3answers
3k views
How can I avoid the battery charging when connected via USB?
I'm using my Samsung Galaxy S2 for development so I regularly plug it while it's not fully charged, and my phone starts charging over USB. I think this (charging while in use) can affect battery life ...
2
votes
2answers
382 views
Does CM7.1 give a “low battery” alert?
I've been using CyanogenMod 7.1 since it became stable, and one feature I miss is the Low Battery alert. I've often come home from work, thrown my phone on the desk and forgotten to plug it in. When I ...
8
votes
2answers
206 views
Avoiding power drain
I just got a samsung Indulge this weekend and I’ve noticed that the biggest power drain on the battery is from the display. I’m blind, so I really don’t need to be able to see it at all. Is there a ...
3
votes
1answer
425 views
Is there any known memory leak in Gingerbread 2.3.3 fixed by occasional reboot? Related to battery usage?
I notice that when I reboot my Samsung Captivate, it runs smoothly for about 2 or 3 days. After that, I notice that there is a lot more lag with various apps, and the launcher screen is more likely ...
3
votes
0answers
464 views
Battery life in Samsung Galaxy 3
I recently updated my Samsung Galaxy 3 to Android 2.2 . After the update my fully charged battery dies in just 3 hours(without any use) and around 1 hour if I use it (talking,browsing etc). I am using ...
6
votes
2answers
1k views
Does encrypting the Xoom tablet use battery faster?
I recently decided to encrypt my Xoom tablet. The process went smoothly (full power, plugged in the whole time, took about an hour) but since the encryption, it seems like my battery life has ...
1
vote
1answer
325 views
Battery life in dual-boot HTC HD2
I own a dual-booting HTC-HD2 with MIUI on SD card.
I already knew, from tutorials, that in order to maximize battery life I should first-boot Android only with 100% of charge.
This is currently ...
3
votes
4answers
868 views
Battery usage problem in Android 2.3.6
Since the update to Gingerbread the battery of my phone has the half duration than with the 2.3.4 version.
The "Battery Usage" in settings don't show anything abnormal.
Anybody have the same ...
2
votes
1answer
572 views
What is preventing my Android phone from going to sleep? It is eating through the battery quickly
My phone is the Motorola Droid 1, rooted and modded with CyanogenMod 7. This problem did not occur before I modded it. When I check the battery stats, the awake bar is always solid, so something is ...
3
votes
1answer
136 views
Why did my battery usage on 3G grow with the Android 2.3 update?
There were different nice features followed by the official update of Xperia X10 to Android 2.3 like the sound stuttering, but the most annoying is the following.
I live in the Netherlands and here ...
10
votes
7answers
4k views
Power saving tips for Galaxy S2 that don't involve turning it into a dumbphone
My Galaxy S2 has always shown not more than 8 hours of battery life.
This is with the stock ROM, as well as the recent 2.3.5 update and a rooted kernel.
All the battery saving tips I've seen ...
6
votes
1answer
554 views
How much does Android use Wi-Fi for network discovery when not connected?
When I have Wi-Fi turned on, but not connected to any network, how much does Android use the Wi-Fi function? I'm asking this because apparently Wi-Fi activity uses considerable* amounts of battery.
...
5
votes
1answer
559 views
Can I change the level for “Connect your charger”?
My phone HTC Desire on cyanogen mod 7 shuts it down if the battery level is 18%.
Can I change this level to something lower?
0
votes
0answers
257 views
Music/podcast playback and battery life, best friends or mortal foes?
So I've gone through one normal day with my new Bell Samsung Galaxy S II at school. I unplugged at 7:11AM and it is currently 8:00PM and the battery is at 17% according to the Battery Indicator app ...
5
votes
1answer
440 views
Does a battery with more capacity last proportionally longer?
I recently bought a Galaxy S2 which came with a 1650mAh battery and in a near future the manufacturer will be offering another one with a 2000mAh. My question is: will it last 21% more than the ...
0
votes
1answer
288 views
Why is my battery life fluctuating?
I installed CM7 on my LG P500, and ever since the battery sometimes lasts 30 hours, sometimes for 8 hours, under the same usage and same power state (conservative). How can I fix this?
4
votes
1answer
324 views
How much battery does using live wallpapers drain?
I know they are unnecessary, but they look so cool!
4
votes
1answer
882 views
Is there anything that can show exactly what has awaken my phone?
Recently I had some issues with my phones battery getting drained in 8-10 hours, even though the screen was active for less than 1 hour and wifi/bluetooth/gps was off.
My first thought was to check ...
1
vote
1answer
327 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
297 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
3answers
220 views
Verdict on Nexus S battery quality?
So... while I think my NS is a great phone, I am currently (very) disappointed with battery lifespan.
I mean, I don't have too much more than the usual installed - Whatsapp, FB, Maps etc. And I don't ...
1
vote
1answer
293 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 ...
3
votes
2answers
913 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
280 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
234 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
260 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
375 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
144 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
1answer
205 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 ...
9
votes
4answers
649 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, ...
4
votes
1answer
263 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 ...
6
votes
1answer
380 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
501 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
12k 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
1
vote
2answers
6k 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
702 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, ...
32
votes
4answers
11k 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
368 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 ...
8
votes
2answers
839 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
1k 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 ...
0
votes
3answers
388 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?
4
votes
3answers
1k views
Android Antivirus Software (solution and battery life relevance)
Is there a security sollution for Android that's vastly regarded as "the best" one at the moment or is it like in the PC world where there's 3-4 which are "the best"?
Also, what should I expect to ...
6
votes
2answers
1k 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 ...
12
votes
2answers
1k 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
1answer
474 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?
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 ...
11
votes
1answer
723 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?
