TPE New Aluminum Body as Original Li-Polymer Laptop Battery for Apple A1189 A1151 A1212 A1229 A1261 Macbook Pro 17", (Not Plastic) - 12 Months Warranty [10.8V 6300mAh 9Cell] Battery type: Li-Polymer; Capacity: 70Wh; Voltage: 10.8V. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support, 8-hr x 5-weekday call support, 12-month hassle-free warranty. Operation time for standard batteries(eg, 4400mah): Around 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.