Laptop Battery for Toshiba Satellite L310 M300 M305 U400 U405 U405D, Satellite Pro M300 U400, Equium U400, Portege M800 Series (10,8V, 4800mAh) Replacement Laptop Battery for Toshiba Satellite L310 M300 M305 U400 U405 U405D, Satellite Pro M300 U400, Equium U400, Portege M800 Series Compatible with Toshiba Part Number: PA3634U-1BAS, PA3635U-1BAM, PA3635U-1BRM, PA3636U-1BRL, PA3638U-1BAP, PABAS117, PABAS118 Li-ion, 10.8V, 4800mAh, Black. Brand new, one year warranty!