NEW AceSoft 3900mAh High Quality Optimus S Extended Life Battery w Back Cover Door + Wall Travel Dock USB Charger for LG Optimus S LS670 (Sprint) , LG Optimus V VM670 (Virgin Mobile) , LG Optimus U US670 (U.S. Cellular) Cell Phone (Not for Virgin Mobile LG Optimus Slider , LS700 , Gelato Q , VM710 CellPhone)