Specifications: - Battery type: Li-ion - Voltage: 10.8v also compatible 11.1v - Capacity: 4400 mAH - Brand: Unbranded /OEM Compatible Models: Mecer Clevo Proline W650DC, W650RB, W650RC, W650RC1, W650RN, W650RZ, W650RZ1, W650S, W650SB, W650SC, W650SF, W650SH, W650SH, W650SJ, W650SR, W650SR, W650SZ, W650SZ, W651DC, W651RC1, W651RN, W651RZ1, W651SB, W651SC, W651SF, W651SJ, W651SZ, W655RC1, W655RN, W655RZ1, W655SB, W655SC, W655SF, W655SJ, W655SZ, W665SZ, W670, W670RBQ, W670RBQ1, W670RCQ, W670RCQ1, W670RCW, W670RCW1, W670RNQ, W670RNQ1, W670RZQ, W670RZQ1, W670RZW, W670RZW1, W670SBQ, W670SBQ1, w670sc, W670SCQ, W670SCQ1, W670SFQ, W670SFQ1, W670SJQ, W670SJQ1, W670SR, W670SRQ, W670SZQ, W670SZQ1 Compatible Part Numbers 6-87-W650S-4D4A2, 6-87-W650S-4D7A2, 6-87-W650S-4E7, 6-87-W650S-4E72, W650BAT-6