DekCell Replacement Battery for Apple MacBook Pro 17" A1309 A1297 MB604LL/A (13000mAh) Replacement Battery for Apple MacBook Pro 17" A1309 A1297 MB604LL/A Guaranteed to meet or exceed OEM power specifications. Battery Type: Li-ion Polymer Voltage : 7.4V Capacity : 13000mAh, 95WH