New Laptop Battery Mecer W650SR, Clevo W670RC - W650BAT-6, 6-87-W650S-4D7A2 - 6 Voltage: 11.1V Capacity: 4400mAh Watt-hour: 49Wh Chemistry: Li-Ion Cells: 6 Product Number: BATMEC01801C It is strongly advised that you check the voltage and capacity of your original battery before purchasing. Using an incorrect battery may cause damage to your device. For safety, we recommend having the battery verified by a qualified technician if you are unsure.