Huge battery life fix.
I am using the stock radio. This has been confirmed by others as working also.
Seems as if there is some sort of bug with with Cell standby that causes the phone to lose signal which in turns just kills the battery. To verify that your set has the problem, check the Cell standby info in the Battery Use info. If the Time without a signal
is higher than 0% (50% seems to be the norm) than you have a problem.
One solution, at the moment, is to follow these steps:
1. Plug in phone charger or into USB.
2. Put phone in Airplane mode
3. Put phone to sleep for a minute
4. Turn off airplane mode
5. Unplug phone
My Time without a signal
is at 0% for over 16 hours now. The battery life is much better and the phone didn't die on me last night while i was sleeping.