Galaxy Nexus battery drain

Just a quick post about my Galaxy Nexus. I have it for twee weeks now, and I almost started to accept the crappy battery life: unplugging it at 8:00, realizing at 20:00 that it might be a good idea to turn off the data and 3G. Meh, crappy indeed.

Yesterday I decided to try 2G only for a while, with some noticeable improvements. I started some further investigation and ended up installing Better Battery Stats. This program showed an interesting statistic: my phone refused to go in deep sleep, and a mysterious process (or service?) called BTLowPower seemed to be the little daemon that kept my phone awake day and night. I'm pretty bad at word games, so it took me some googling before I realized that it was some Bluetooth thingy. Hmm. I barely use Bluetooth. Some more googling: Bluetooth on stock Galaxy Nexus is buggy. It tends to be stuck in some phase which could best be described as: the thing tries to enable bluetooth and fails miserably.

Fast forward (got some work to do): reboot phone, if Bluetooth appears magically to be enabled, disable it. Result: no more BTLowPower!

Net result: after 7 hours, 80% battery left. And that's with data synchronization enabled and playing around with the phone (36 minutes screen time).