Battery Energy+ brand Li-Ion 6 cell for Toshiba Satellite A100, A105, A80, M100, M105, M110, M115, M40, M45, M50, M55 series and Tecra A3, A4, A5, A6, A7, S2 series and Equium A80, M100, M40, M50 series replaces PA3399U-1BAS, PA3399U-1BRS, PA3399U-2BAS, PA3399U-2BRS, PABAS057, PABAS076. PLEASE CONFIRM BATTERY PACK PART NUMBER. "10.8V 4800mAH Fully Charged and Tested 1 year Warranty"