I've been rocking a rotted D1 for over a year now. Original battery. It seems as of late I'm draining battery rather quick and needing to charge even mid day with minimum usage. Build FRG83D Mod version CyanogenMod 6.1.2 Slayher 18.104.22.168 kernel. I'm running Advanced Task Manager and Autokiller Memory Optimizer set on optimum. Shouldn't be many other running services. Any ideas on how to improve battery life? Also I noticed I can buy on Ebay batteries and battery chargers for the D1 new and pretty cheap. I noticed comments saying that depending on build D1 batteries aren't interchangeable? Thanks for advice!