I've had the nexus since mid-January. I'm on an unrooted stock 4.0.2 with an extended battery. I had become fairly accustomed to how much life I could get off a charge and was fine with it. But two days ago I had shut down my phone with 66% battery left after 15 hrs (I rarely use it during the workday). But yesterday, the phone drained off the rest of the battery in 5 hours.
While at work, I leave the phone with WIFI off, GPS off, NFC off, and on 3G only (I had the WiFi on while at home). The only widgets I run are the power manager, weather channel, and battery noif. To my knowledge the only things that were changed on the phone between the two days were updates to the Twitter, Yelp, and Tether apps.
Based on what I've read on forums, I would imagine something is keeping the phone awake based on 5 hrs of awake time on 2.5 hours of CPU time, but I have better battery stats installed and the longest partial wakelock is only 10 minutes. There are kernal wakelocks that are longer but I'm not sure if that's normal.
I've attached some screen shots from the battery settings page and the log from better battery stats taken from when there was about 10% left. The sharp drop begins when I booted up my phone yesterday. I'd really appreciate any help anyone can give as to why the battery drained so quickly despite no changes in usage habits.
Thank you
While at work, I leave the phone with WIFI off, GPS off, NFC off, and on 3G only (I had the WiFi on while at home). The only widgets I run are the power manager, weather channel, and battery noif. To my knowledge the only things that were changed on the phone between the two days were updates to the Twitter, Yelp, and Tether apps.
Based on what I've read on forums, I would imagine something is keeping the phone awake based on 5 hrs of awake time on 2.5 hours of CPU time, but I have better battery stats installed and the longest partial wakelock is only 10 minutes. There are kernal wakelocks that are longer but I'm not sure if that's normal.
I've attached some screen shots from the battery settings page and the log from better battery stats taken from when there was about 10% left. The sharp drop begins when I booted up my phone yesterday. I'd really appreciate any help anyone can give as to why the battery drained so quickly despite no changes in usage habits.
Thank you