Since unplugged this morning I am down to 74% battery. 2h 36m unplugged time Display 58% Cell Standby 17% Phone Idle 15% Android system 4% Android OS 2% Internet 2% Handcent 2% Screen brightness is at 20 Non-rooted thunderbolt. Thats it. What is killing this battery? I have the verizon extended battery also.