Runpower New Laptop Battery for Apple A1309 A1297 (only for Early-2009 Mid-2009 Mid-2010 Version) MacBook Pro 17-Inch Precision Aluminum Unibody[Li-Polymer] Please note This model is an A1309 A1297(2009 2010 Version) battery, not an A1383 A1297(2011 Version) battery. Battery type: Li-Polymer; Capacity: 95Wh /13000mAh; Voltage: 7.4V Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability Worry-free, products are passed CE-/FCC-/RoHS-Certified for safety 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery Warranty: 12 months free warranty. 24 x 7 professional and efficient email support