I have a Samsung Galaxy S2 that I upgraded to 4.4 a couple of days ago. Since upgrading, my battery longevity has dropped a crazy amount. Just this morning, it took about four hours to go from full charge all the way down to about 25%, and that's without much use. Previous to upgrading, I could go for about two days while listening to podcasts and writing emails and general normal use.
I looked in the system settings under the battery usage, and discovered that some "unknown" process was responsible for 50% of my battery use:
I clicked on the process to see if I could kill it, but the option to "force stop" was greyed out:
I tried rebooting, but, near as I can tell, it's still there, eating my battery.
How to I put a stake in the heart of this vampire process and make sure it never returns?
Update: More battery madness.
Yesterday, I woke up and my battery was dead, even though it was left in the charger for the night. Took a few rounds of trying to recharge and reboot to get any response, but eventually I got it running again, and this is what I saw in the battery settings:
Looks kind of like Google+ threw a fit and sucked the life out of the battery. Though, actually, I think that's probably a misreporting of events.
Okay, so then, yesterday, I was listening to a podcast, and I hear a pop and then my phone reboots. Again, when it's back on, I check the battery report:
It's pretty normal for the screen to be the biggest battery draw, but I don't see why suddenly the available battery power droped by about half at the time the phone self-booted.
So... I don't really know what to make of any of this. I'm kind of thinking maybe my battery is dying and behaving oddly. But if anyone has any better ideas...?