#204 poor battery life

[Anonymous]

Originally created by: dcitele...@gmail.com

I use the Telus HTC with Android 2.1 (Villain ROM 12). On 3g I get 5 hours standby, on wifi a bit more. I don't know what could be done to improve battery life but this is a top priority for me.

1. I played a bit with "partial wake lock" and found it's essential to receive calls on 3g but not needed on wifi except that on wifi it takes 2 full ring backs before csipsimple starts ringing. Oddly enough when "partial wake lock" is checked on wifi the phone rings instantaneously. Seems to me some fine tuning might be possible. E.g. partial wake lock may not be needed on wifi exept when a sip invite comes in. Maybe it's only need to re-register at periodic intervals instead of all the time. There might be some battery savings possible here.

2. I recently installed "overclock widget" and set it to lower the CPU frequency when screen is off. Hopefully this improves battery life a bit on standby. If it does, the functionality could either be incorporated into csipsimple or the utility could be licensed / used together.

3. I can also try to underclock the cpu to see if this changes the battery life significantly.

4. Biggest battery hog is the screen light so any code that switches off the screen light in csipsimple as soon as possible during a call would improve battery.

[Anonymous]

Originally posted by: r3gis...@gmail.com

For point 4 you can uncheck the "Keep awake while in call" option in UI settings : it's a tweak for nexus one users for whom while in wifi if screen goes off incoming packets are delayed.
I will also implement the proximity sensor sleep mode but not sure it will helps on your phone (don't know if you have a proximity sensor).

For other point, there is a discussion on issue 81. It's a background task for me. I've still to make things more stable before tweaking/refactoring everything to improve battery life. But that's on the roadmap and is really important.

Mergedinto: 81
Status: Duplicate