setcpu doesn't recognize my battery, it says 0.0 C. Also with battery widgets I have this problem. Here's a pic: http://imageshack.us/photo/my-images/853/screenshot201112241911.png/
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hey all,
Does anyone know why my Xperia Arc's Battery use says its always 'Awake'?
It seems to be chewing through my battery rather quickly recently. After 6 hours of very little use im down to 60% battery.
The only running processes are:
Settings (open to see battery use)
Facebook
3D Flip Clock
BatteryLife
DSP Manager
ROM Manager
Google Services
Android Keyboard
Ive heard there is an issue with the battery stats screen showing incorrect values for each process' drain percentage, my phone says Maps is using 70% and Cell standby only 10%.
Im trying right now with 3D Flip Clock not running to see if thats the issue.
Team,
I am using unofficial Cyanogenmod 7.2.0-RC1-marvel-KANG, recently upgraded it. I am facing the issue with battery back up.Even I have changed the settings in *#*#4636#*#* after that I kept my phone in idle status for 12hrs my battery status was 25%. I have read in one of the thread that cm7 with get good battery life.but I am not getting .Please help me with suggestions
For the same I have disabled GPS, Dataenabled and Syncroniser.
Everytime my battery reaches full charge I unplug and reboot into recovery. Go to advanced and wipe battery stats. Reboot. This is how you condition your battery. The rom becomes calibrated to know when your battery is fully charged.
Don't use autosync or use background data unless necessary and use dimmest screen brightness possible. Make sure gps is off when not used. I get 18 hr on sense 3.5 and I use my phone mostly music, games and web. Always overclocked to 806 Mhz and 120 min.
If I helped click thanks.
Sent from my HTC MarvelC A510c using XDA
in addition to overclocking, use profiles to underclock at certain times like when screen is off make the clock spped for min and max both at 200mhz, and you'll probably save some battery
Hello guys.
I've made some tests for optimizing the battery and i've decided to share the results. I've also tested an extedend battery 2400mah. This battery needed a calibration which I'll explain here. Everything is free except for an app.
My device and settings are:
Xperia Arc S rooted, Doomkernel v22, Fw.62 GB
Governor smartassV2 1.4Ghz no overclocking
IO Scheduler Noop
I've also undervolted my CPU with -100mV for each frequency
Original Sony battery
You must have root privileges for your device.
I had the same problem with the 1% battery staying for hours with the 2400mha battery but you can solve this with a simple free application you can find on GooglePlay . The aplication name is "Battery calibration". I use the DoomKernel v22 and official android GB 2.3.4. I've made no supplementary kernel modifications for the battery calibration. Read the inside app indication for callibration.
If you have this reading problem with your battery you can use this app.
--------------------------------------------
Now lets start.
I recommend you to install the "CurrentWidget" free widget to see the current discharge rate on your screen and the voltage of the battery.
At approx. 3.5V the battery is completed discharged and the phone shuts down itself. Maximal value is 4.2V meaning the battery is fully charged.
To set up the "CurrentWidget" app, go into settings of the app and set the followings:
Update interval - 5 sec
Display Options - Widget Type -Clear Text
Display Options - Views - select Electric Current (mA) and Voltage (V)
Display Options - Customize - deselect Show last Update time and Show update now button
This widget also shows you when your battery is charging and when is discharging. The thunder sign goes green when charging and white while discharging.
This color detail is very important beacause the battery can show charged 100% but the battery is still charging for reaching the maximum capacity. Test for yourself and see.
Remember this thunder color conditions. You will be surprised.
I've attached a screenshot to see the widgets.
With the CurrentWidget you can easily optimize your android to save battery. I'm also using the free app System Tuner Task Manager Option to see the apps that are consuming Cpu and shut them down if dont needed, or uninstalling them. This is for idle mode.
I've managed to get -80mA -85mA battery drain in aireplane mode with wireless on, phone at idle and the brightness screen at 15%.
Idle means Cpu at 245Mhz and CPU load less than 5%
The -80m value you can see it on your screen if you set up the CurrentWidget widget app.
I've searched for days for such an app and it's perfect for seeing on the screen the battery drain every 5 seconds.
See attached file
I'm also using Temp+Cpu Pro Widget app for seeing the Cpu Frequency and the Cpu Load every 5 sec.
It is not recommended for the above widgets to set the update interval less than 5 sec because it is cpu consuming, resulting in higher battery drain.
With this combination of widgets you can easily find aplications that are battery friendly.
For example I've tested various movie players and there are differecies. For example Vplayer and QQplayer are not battery friendly.
You can test all the apps you use and alternatives to chose the ones that are battery friendly.
If you want , post your battery drain in aireplane mode with wireless on, phone at idle and the brightness screen at 15%.
Maybe we can save more battery.
(sorry for my english)
That's all.
What value do you have after wake up ? I have 2-5 mA. And when screen is on 60-90mA
after wake up I have 0mA even with wireless on but in airplaine mode
Can you also specify the kernel and firmware you use? I've never reached -60mA,
only -69 with wireless of, screen at minimum and in airplaine mode
Please specify the kernel and firmware if you post your results here
i will give this app a try and give u my commends guys
thanks
I have a rooted HOX with everything in stock version. I have tried solving this issue by myself but no matter what I do, it just wont go away.
I get HUGE battery drains whenever I have my wifi on. I don't use 3G or 4G, only wifi.
I thought it's a faulty battery at first, so I ran the battery test on the "HTC Function Test" (by dialing * # * # 3424# * #* in the dialer). For someone who is not familiar with it, it is a test which checks your battery usage in full brightness, screen always on, airplane mode ON for 60 minutes. If your battery discharges below 70% during the test, it means you have a faulty battery. Well, after 60 minutes my battery was at 81%.
I have underclocked the CPU's max speed at 1Ghz and tweaked the "Ondemand" governor a little so it stays more on the lower frequencies. I have also disabled ayto-sync and GPS location options and enabled the Power Saver option. I have also changed the network mode to GSM only (not sure if this makes a difference).
I also used Gsam battery monitor to monitor the battery usage and my "App usage" is the highest battery drain with Kernel (Android OS) always up there in the most apps that use the battery.
What do you suggest I do?
I usually just run one or the other but recently ran both. Only problem was that my alarm wouldn't work with the battery saver app. Totally pots the phone in dead sleep mode. Sometimes the phone would wake up very laggy maybe because of the profiles on setcpu. Greenify was running also. What are your ways of saving battery?
I was unaware that you could run SetCPU without a mod kernel.