Efficient and Reliable Grade A Cells FCC / CE / RoHS Certified More Charging Cycles Long Lasting Performance : Battery Type: Li-ion Voltage: 15.4V Capacity: 53Wh/3450mAh Battery Condition:100% Brand New Compatible Part Numbers: PS0104UA1BRS 41CP5/63/69 Compatible Laptop/Notebook Models: (use "Ctrl+F to find your model quickly") For Toshiba Dynabook Tecra A40-J-12E, A40-J-1OX, A50-J, A50-J-12U, Portege X40-K, X40-D