Thanks for all of the information here! I just moved from a Windows phone to Android & wow--wish I'd done that sooner. Trying to learn all I can about how to make my Thunderbolt's battery last longer. Have been through almost every thread and tried most of the suggestions but in a half hour I still go from 100% to 86%. Currently on day 9 of my 14 day "is this the right phone for me" period. Cheers!