incrediBILL - 11:27 pm on Mar 15, 2013 (gmt 0)
I already use Advanced Task Killer to terminate any apps idling in the background that could suck power and that's not the issue.
This is definitely an OS or vendor software problem as it happens even when the phone is basically freshly rebooted if it can't get a decent connection.
Luckily I always have a charger handy and the phone charges pretty fast so I'm in pretty good share except when I'm traveling, but this is a serious flaw that shouldn't exist in such a device.
Maybe if I tell it roaming is OK it won't have a panic attack trying to reconnect to it's own network, haven't tried that yet cause it's kind of dangerous if you're in an area that doesn't have reciprocal roaming agreements with Sprint like Verizon does.