Specifications: Battery Type: Li-ion Voltage: 7.7V Capacity: 39Wh Color: White Certificate: CE,RoHS,FCC Condition: 100 Percent New from Manufacturer, Grade A Cell, 12 Months Replace Part Number: AA-PBUN4AR, BA43-00375A Compatible Laptop/Notebook Models: 900X5L, 900X5L-K01, 900X5L-K02, 940X3L-K02, NP900X5L, NP900X5-k01usL, NP900X5L-k02us, NP940X3L, NP940X3L-K01US