SLODA Laptop Replacement Battery for Apple MacBook Pro 17"A1309 A1297 (Early 2009 to Mid-2010) Compatible for MC226/A MC226CH/A MC226J/A MC226LL/A MC226TA/A MC226ZP/A [Li-Polymer 7.4V 10800mAh] 100% New from Manufacturer, High Performance 13000mAh A1309 Replacement Battery. About 500 recharge cycles over the life of the battery. Lion Polymer Grade A cells, 7.4V 95Watt-hour. 100% New from Manufacturer. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety.