Sudden really bad battery drain

[mtmjr90]

I had the exact same problem. I'd drop 40% after a 10min call. I called HTC and they sent me a new battery. Ironically, i did a battery pull reset right after I hung up and it fixed the problem completely. Now I have an extra battery that I carry to swap if needed. I posted in the forums about this and someone suggested Watchdog to monitor for rogue apps.

Sent from my HTC Evo 3D using Tapatalk

 

[irock1985]

Re-Calibrate maybe? I dunno worth a try over Hard Resetting