Battery life is important for mobile devices. Questions regarding battery life should use this tag.
0
votes
3answers
3k views
Battery drain on Galaxy Note-I after updating to Jelly Bean
I have Galaxy Note-I (N7000), and upgraded to Jelly Bean 4.1 today.
The battery drains fast. Do we expect any update from Samsung on the battery drain issue, or do I need to downgrade to ICS?
2
votes
2answers
240 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 ...
4
votes
1answer
96 views
Samsung galaxy 3 says charging paused. Battery temperature too low
I plugged in my S3 when it said 1% battery life and the red charging indicator light never came on, when i checked it a few minutes later it was at 0% and powered off. Immediately after that I tried ...
3
votes
1answer
35 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 ...
3
votes
1answer
913 views
Nexus 7 charges very slowly, even with 2 amp chargers
I'm facing a rather painful issue with the battery life/charging issue with my Nexus 7 (4.2.2)
When idle and plugged into my 2A charger with the stock USB cable, it charges VERY slowly. I'd say ...
3
votes
1answer
123 views
“Phone” item using 10-15% of Battery Life
I've attempted to search for other questions answering this, but keyword ambiguity is working against me.
On my Galaxy Nexus, my battery drains rather quickly. Very frequently, when viewing the ...
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 ...
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 ...
2
votes
1answer
132 views
What factors does PowerTutor measure to show energy consumption?
I am trying to find the impact of the signal strength on the energy consumption of WIFI in Android using an HTC NEXUS ONE. I am sending several files starting from 1 kb to 600 kb.
I use PowerTutor as ...
1
vote
1answer
134 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
198 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 ...
1
vote
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 ...
1
vote
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?
3
votes
0answers
541 views
MS Exchange with Default Email App is Randomly Draining Battery!
I'm using my Exchange email account for work with the default Email app on my Nexus S running Jellybean... usually everything works just fine, but within a week or so it'll start consuming massive ...
3
votes
0answers
462 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 ...
2
votes
0answers
120 views
How to keep CPU off when charging?
When I connect the USB power source, it makes CPU to stay on (even though "Development->Stay awake" is off).
When charging from a weak power source if makes battery to drain even faster than is case ...
2
votes
0answers
222 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 ...
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 ...
1
vote
0answers
8 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 ...
1
vote
0answers
33 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
1
vote
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 ...
1
vote
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 ...
1
vote
0answers
327 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?
...
1
vote
0answers
215 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 ...
1
vote
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?
0
votes
0answers
881 views
Samsung Galaxy S2 battery gets hot
My Galaxy S2 is less than a year old. The battery sucks! I have to charge it more than once a day.
Tonight, while on the charger, the battery life is actually going down. It's also way too hot to ...
0
votes
0answers
287 views
Phone Radio uses 80% of my battery
I have GSam Battery Monitor, and it says that my Phone Radio is using about 80% of my battery. Why is this so high? I usually unplug my phone in the morning at 8AM, and I usually need to plug it back ...
0
votes
0answers
90 views
How to force Android's battery usage graph to update?
On Android 2.3.4 is there a way to force the battery usage graph to update manually? You can request an update in the app-by-app battery consumption report, but that doesn't appear to update the Line ...
0
votes
0answers
152 views
Samsung Skyrocket - Maximize Battery?
I have tried a few alternative ROMs, and underclock using SetCPU, but I can't seem to find a truly effective way to have my Samsung Skyrocket's battery last for more than a day. My average usage time ...
0
votes
0answers
78 views
samsung galaxy battery problems
Ever since updating to ICS 4.0.4 my battery life has been awful. I have tried all the suggestions but I do notice when I go into the section showing where the drain on the battery is taking place 64% ...
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 ...
