Tagged Questions
3
votes
1answer
43 views
How does the android OS estimate remaining battery time?
It is know how the Android OS estimates time to failure / remaining battery charge?
I am doing a school project about battery estimation on mobile devices but have not been able to find any ...
0
votes
2answers
30 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 ...
-1
votes
1answer
355 views
Unusual battery drain on note II [closed]
My Note 2 battery is driving me insane.
I have been using my Note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and ...
2
votes
1answer
179 views
Why is my battery low only a few hours after charging?
Twice recently I have charged my Samsung Galaxy Ace at night and when the phone indicates it's fully charged I unplug the charger only to be woken a couple of hours later thinking I have a text come ...
1
vote
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 ...
3
votes
1answer
468 views
my samsung galaxy 2 battery is draining to fast!
I have an Samsung Galaxy S2 GT i9100. I have had it for quite a time, but today I noticed something strange:
First my battery had not been charging while I was sleeping: when I woke up I had only ...
1
vote
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 ...
1
vote
1answer
248 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. ...
7
votes
5answers
8k views
Serious battery drain (Screen, Android OS) after JB upgrade
Since I upgraded my Samsung Galaxy SII from Android 4.0.4 (ICS) to 4.1.2 (JB), my battery life has decreased dramtically.
Running ICS I could easily have ~25% battery left when going to bed, after ...
3
votes
1answer
3k views
Is there an efficient way to calibrate the battery than using some apps?
Is there an efficient way to calibrate the battery of my tablet in order to prove or disprove the very low battery backup than using some Apps.?
The context is that my tablet is giving a very low ...
1
vote
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 ...
2
votes
0answers
225 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 ...
1
vote
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 ...
0
votes
2answers
174 views
Saving battery life: pressing home button or back button
My friend said when using an app, pressing the home button saves battery life instead of pressing the back button. He thought by pressing the home button, the app stays in RAM so that when you reopen ...
10
votes
3answers
7k views
Mediaserver using excessive CPU time and battery
I've got a Nexus 4 on OS version 4.2.1 that suddenly started to drain it's battery very quickly. When looking in the battery usage I see "Mediaserver"eating 60% of the battery over time, with several ...
1
vote
1answer
572 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 ...
1
vote
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 ...
9
votes
2answers
2k views
How frequently is it okay to let the battery discharge fully or as low as possible?
I know that atleast once or twice a month a full battery drain and then a 100% charge helps increase the battery life and also gives more accurate battery readings.
I was wondering, how frequently is ...
0
votes
1answer
159 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.
...
2
votes
0answers
132 views
Prevent complete charging?
I'm looking for a way to prevent my phone from completely charging every time it is connected to my computer. I want to reduce the battery's capacity loss, as it is non-replaceable, and it seems to me ...
15
votes
1answer
2k views
How does Android obtain battery temperature?
I am curious about the way Android phones obtain the battery temperature. Android has an API called BatteryManager which provides the value of instant battery temperature, but is there an actual ...
4
votes
1answer
126 views
How can I monitor the device battery consumption?
I need information about which applications or hardware features discharge the battery. Built-in Android option for this doesn't fit because not all devices have it. Also it would be a great advantage ...
-2
votes
1answer
135 views
How to estimate battery endurance before purchase? [closed]
Let me state obvious thing -- the easiest way to compare two phones would be to buy them and test them. However without such luxury, all I can do is estimating.
I listed such hardware factors -- in ...
2
votes
1answer
626 views
Why does my myTouch 4G lose battery so fast?
So I formatted my phone today. I have not used it, and it was at 100% this morning. No apps installed, the screen was only on for about 10 minutes. Yet when I go to check it now, about 12 hours later, ...
0
votes
1answer
192 views
App to show battery current or rate of change of voltage, short term info
Id like to have quick feedback about how what I do on my phone affects power usage, but cant seem to find a good widget or app for that out of the hundreds out there! Anyone know any?
Thanks
2
votes
2answers
183 views
Power saver turns display brighter. Shouldn't it be darker?
When my battery is running low, the power saver turns on. When that happens, my display gets brighter. Shouldn't it be turning darker to reduce the power consumption? Is it normal to get brighter or ...
2
votes
1answer
359 views
How to train the battery
I am trying to find the way to use my battery in the most efficient manner.
I found several suggestions how to achieve the longest life of the battery, and one of these suggestions is quite strange ...
5
votes
1answer
130 views
How to check how much battery the data network is using?
How do I check how much battery the data network is using? When I enter Settings->About phone->Battery usage I get the following:
Voice calls
Android OS
Display
Android System
Dialer
Cell ...
6
votes
2answers
298 views
Battery life depends on type of charger
When I charge my HTC Sensation mobile with the charger supplied by HTC the battery duration is more or less 1 day (depending of the usage). But (here comes my question) when I charge the mobile ...
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 ...
5
votes
1answer
432 views
Save battery by switching to 2G after a few minutes of inactivity
I'm looking for an app that'll switch to 2G only after a few minutes of inactivity. The idea seems simple enough, but I can't find it.
JuiceDefender just disables the data connection, and re-enables ...
2
votes
1answer
673 views
Battery Sony Ericsson XPeria Mini Pro
I've a Sony Ericsson XPeria Mini Pro with Android 2.3.3. I noted that the battery ends really fast.
I don't have enable GPS service, Mobile data, Bluetooth. Only phone and wifi. In less than two days ...
0
votes
1answer
726 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 ...
9
votes
3answers
21k views
How can I find out what causes “Android OS” to consume battery?
The issue is that I see a high percentage on the "Android OS" item in the Battery Usage, and I want to find out what is causing it. But let me say that I'm interested in diagnostics techniques and ...
4
votes
1answer
231 views
Battery level on Asus eee pad Transformer with dock
I'm wondering if anybody knows how the battery level is measured on the Transformer when the dock is connected.
I fully charged the other day, and after few hours of use the battery level was still ...
2
votes
3answers
192 views
Settings -> About phone -> Battery use bug?
When I open the "Battery use" screen it says that the phone is on battery for 14663d 4h 34m 53s, which is clearly wrong. The graph shows a linearly descending line. What is the problem? Why does the ...
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 ...
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 ...
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 ...
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 ...
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
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 ...
3
votes
2answers
912 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 ...
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 ...
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% - ...
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 ...
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?
