Droid thunderbolt: I plug in my phone before bed to charge, leaving it on so I can wake up to my alarm. It has automatically powered down and shut off in the middle of the night so my alarm does not go off. This has not been a consistent problem, but has happened about 10 times in the last 2 months. When this has happened, the battery on my phone has been about 3/4 full before plugging it in at night. The battery is always fully charged when I power it up in the AM after it has shut off Is there something that automatically powers down the thunderbolt after no activity and fully charged after a certain number of hours? Will it help to have an application running (like an alarm clock) so it doesn't stay fully charged? Thank you for your help!!