I have the Extended Battery for my Bionic, and after update 5.5.893.XT875 my Bionic is showing constant 90% usage for android system. After 12 hours of mostly idle use the phone is ready to be charged. Also I am still losing 3G connection sometimes up to 2 hours even after battery pull. I have also noticed my phone has rebooted itself 4 times in the last 15 hours.