Battery life is important for mobile devices. Questions regarding battery life should use this tag.
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1answer
2k views
Google Services battery usage
I recently updated to the 10.1 M snapshot of CyanogenMod for my Sprint Galaxy S3 (d2spr). Ever since I did the update, I have been seeing crazy high battery usage from Google Services. I have tried ...
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2answers
2k views
Can you actually determine the mAh of a battery?
You can skip the story part but for better reference, please read it:
A Little Story
My phone claims it has a battery of 4000 mAh that lasts for 3 days. I got the phone, really psyched because of ...
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2answers
273 views
Why android is power hungry? [closed]
When every android phone is released, all the reviews discuss about battery life of the device, since, they say, battery life in android phones is a critical issue.
Question is :
Why battery life ...
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1answer
77 views
How can battery usage of Android be at 79%?
Till last night everything was kinda balanced.....most of the different parts of the usage were in between 20-35 %, but this morning after having activated the internet from my network provider, it ...
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1answer
227 views
How much does an LCD's backlight drain the battery?
The screen tends to be one of the biggest consumers of electricity. How much of this is for the backlight vs the actual screen, particularly in the case of an LCD?
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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 ...
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1answer
376 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 ...
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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 ...
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3answers
165 views
Does Cyanogenmod reduce battery life?
My galaxy mini was running GB 2.3.6. I recently rooted my phone and installed CM 7.2. Now it looks like my battery is getting drained a little quicker than before. From what I have heard CM increases ...
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2answers
848 views
“Restrict Background data” with Jelly Bean on tf300t ASUS tablet
On my tf300t ASUS tablet (with wifi only) I tried to set "Restrict Background Data" following
Settings->Data Usage->three boxes in the upper right corner,
but there is no such option. I read on ...
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1answer
127 views
Using a fully charged Galaxy Note
Is it safe to use a Galaxy Note that is fully charged and at the same time it is plugged in to the wall socket? I'm worried that the battery might be charging and discharging at the same time and it ...
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1answer
362 views
Beside shut down the phone, are there ways to prevent battery usage for Call Standby?
Beside shutting down the phone so that the battery will not be used for Call Standby or/and Phone Idle, are there other ways that can prevent the battery from being wasted? (Would the use of ...
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1answer
94 views
Power management on Android — is app CPU correlated to power usage?
2 questions:
Is application CPU usage on Android correlated and how highly to battery usage? In other words, are apps that suck a lot of CPU also draining the battery or not necessarily?
Is there a ...
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2answers
275 views
Power being eaten by screen usage
This morning, when I woke up my phone was out of battery power. So when I checked the battery usage I see the message Display had been used 90%.
This kind of situation had never happened to me ...
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1answer
40 views
What does power saving do exactly?
What changes happen in functioning of the phone after you turn it on?
My device: Samsung S3 Mini
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1answer
250 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. ...
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1answer
2k views
How much battery savings to expect from SetCPU? [closed]
Has anybody done any serious measurements as to effects of SetCPU (or a similar power-saving app)?
I mean, are Google and Linux developers really that stupid not to properly implement power ...
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1answer
597 views
Is using chargers of phone not meant for it harmful to the battery? [duplicate]
Possible Duplicate:
Is my phone liable to explode if I charge it with a charger that came with a different phone?
Are Android chargers universal in terms of power (Voltage, amperage)?
As ...
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1answer
495 views
How to properly close running apps while avast! Mobile Security is installed/ running in the background?
I've just installed avast! Mobile Security on my Samsung Galaxy SIII. Runs perfect so far, but I can't close my programs running in the background anymore. I used to do this by pressing the button ...
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1answer
119 views
Why does my android phone gain battery when I turn it off and on again?
When I got my new android phone (ZTE N762), I noticed something. If my phone is about halfway on battery, and I turn it off for a few hours, it will gain battery life when I turn it back on, around ...
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1answer
98 views
Latest Motorola update burns more battery on RAZR phone idle?
I had my Droid Razr tuned pretty well to give me 10-12 hours of use without going below 70-80% of battery life. Since the update to 6.12.181.XT912Verizon.en.US (GB 2.3.6), I'm now down to 40% in the ...
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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 ...
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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, ...
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0answers
21 views
Galaxy S3 Mini drains excessive battery when Wifi is ON
This question is linked to this one: Wifi battery saving tips or automation
This time, the question is different.
I have here a Galaxy S3 Mini phone that behaves strange. When Wifi is OFF, battery ...
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0answers
1k views
Custom ROM to improve Galaxy I9000 battery life (if mostly standy)? [closed]
I have a Galaxy S I9000 (2.3.6, Gingerbread.XXJW4) and use my phone minimally (mostly just on standby). I would like a least a couple of days, and hopefully a week or two between recharges if possible ...
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0answers
84 views
Wi-fi disabled during lock still partly active? Or do I mis-interpret the battery graph?
On my Google Nexus 7 I noticed that it would consume around 1% of battery each hour that it was just being idle. I suspected that battery-usage during idle time could be improved. So the next night (7 ...
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1answer
135 views
Battery getting charged with ultra speed and continuous at 1%charge for more than 9 hrs
My neo v battery getting charged with in ten min from 0 to 100 percentage( Exponential growth graph ) with ultra speed and getting discharged to 1%( it also give alert showing last 1% left, keep ...
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1answer
201 views
Enterprise (802.1x) WiFi causing excessive battery drain?
In the past week, realised that WiFi at work (using 802.1x auth) has been draining my battery like crazy.
Here are some stats I took over the past few days:
Case Connection Duration ...
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0answers
70 views
Optimizing battery life via colour schemes
I have been looking for a way to change everything on my phone to black (and pure green), since the screen is the main power consumer.
"the Green OLEDs provide 10 times more Brightness per watt ...
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2answers
10k views
Why is “Samsung Push Service” using so much of my battery?
Looking at the battery usage summary on my Galaxy Ace Plus (GT-S7500), I found that "Samsung Push Service" (v1.0.4) has used 29% of my battery. I'm having problems with the battery not lasting very ...
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0answers
328 views
Unexpected battery discharge on Samsung Galaxy S2
I charged my smartphone yesterday to full 100%. When I woke up today, I saw that battery was 40%. Android OS has used 90% of the battery. My Android version is 4.0.3. What is the cause of the problem?
...
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1answer
2k views
msm_otg kernel wakelock preventing deep sleep
Ever since upgrading my stock Sprint Galaxy S3 to the official Jelly Bean release, my phone won't go in deep sleep at all, it's constantly at 384MHz. It's because of msm_otg kernel wakelock. Anyone ...
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1answer
288 views
Neo V with 4.0 ICS update — battery problem
My Sony Xperia Neo V battery performance has gone down very badly after upgrading to ICS.
It mainly happens when I have my mobile data/internet turned on. How can I improve the battery performance?
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0answers
216 views
Handsfree profile sniff mode
I recently connected a bluetooth module (BTM511) to my Android phone (SG2 running android 4.0), using both the handsfree and the headset profiles.
I notice that the Bluetooth device never goes into ...
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0answers
164 views
Poor battery after update to Android 4.0.3
I updated my non-rooted Samsung Galaxy S2 from 2.3.5 to 4.0.3.
Now, I recognize a significant decrease in battery lifetime.
Any idea what may cause it and how to get around it?
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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 ...
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1answer
729 views
How is Anker battery for Android phones?
I've heard people talking about Anker on big forums about Anker battery, basically cell phone batteries and external batteries, and it seems people speak highly about it. So have you have any idea ...
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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?
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2answers
32 views
Wifi battery saving tips or automation
A person that is not expert in computers & technology (including smartphones) bought a Galaxy Mini S3 and asked me some help. He is very old of age.
The problem with this phone is that Wifi ...
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4answers
482 views
is there a way to automatically turn off wifi?
I have an LG P990, and I recently upgraded it to ICS. Since that charging is much slower, and energy consumption much faster. I could live with it, I charged it at work and at home too.
Yesterday ...
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1answer
379 views
Android clearing recent applications list
After exiting the applications on my Galaxy nexus, they appear on the recent applications list. Do they still use CPU/battery? Do I have to remove them from recent applications list in order to save ...
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3answers
4k views
Battery drain with in no time in Samsung Galaxy Ace
I have Samsung Galaxy Ace for almost an year now. The battery of my phone get discharged now with-in no time of charging. The battery status in Setting -> About Phone - > Battery use shown the ...
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1answer
1k views
Android battery usage (3G, HSDPA and Edge)
In order to reduce battery usage I checked the Use only 2G networks from Settings > Wireless & networks > Mobile networks on my Android. Then I noticed the E icon appeared instead of H on ...
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1answer
160 views
Prevent runaway threads and ultimately physical overheating and battery drain on Android
I was wondering if there is a system monitor app that will raise (audible) alerts and offer app closure if it detects runaway threads on Android that cause physical overheating and battery drain.
...
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2answers
4k views
The battery of my Galaxy S 2 is draining very quickly…including on plane mode
I just got a Galaxy S II which I upgraded to ICS.
I really struggle with the battery life.
I have been looking around a lot on the forums explaining how to save my precious battery.
I have done ...
0
votes
1answer
132 views
Can any Android device be set to not auto power-off?
If I buy any no-name Android tablet from ebay etc, is there a chance it will not allow me to force it to stay on all the time? In other words, is "never auto sleep" a universal feature of any android ...
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1answer
82 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 ...
0
votes
2answers
272 views
what could cause a sudden drop in battery life?
According to my battery graph the phone went from 85% to 0 in an instant. I wanted to add a screenshot, but I do not have enough reputation. The last time I checked it was nearly full, and 7 hours ...
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votes
1answer
2k views
Why are Dialer, Cell standby, and Phone idle killing my battery?
HTC G2 with Cyanogenmod 7.2.0, T-Mobile. It used to last all day, I'd always plug the phone in before bed and it would rarely run out of energy before then. Lately it runs out mid-day.
Today I ...
0
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1answer
471 views
Can I prevent ICS browser from using CPU while in the background (without back-button exiting)?
I'm running ICS 4.0.3, and I notice if I have the Web app (default browser) open, but not in the foreground, it still uses a lot of CPU (25-50%), based upon the built-in Android Task Manager. Other ...
