Connectbuying&reg;Brand New replacment Laptop Battery for Apple A1309 A1297 Unibody MacBook Pro 17 Battery type: Li-Polymer; Capacity: 13000mAh/95Wh; Voltage: 7.2V. CE/FCC/RoHS certified for product safety. 24/7 email support, 12-month hassle-free warranty. Grade A Cell ensures fast charging and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time for standard batteries: Around 4 hours, the actual operation time will depend on how much electricity is required by the device and how you use it. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety