CSE&reg; New Laptop Battery for Apple A1078 A1045 A1148 Powerbook G4 15'',15 Inch Original battery Code : M9756 [Li-ion 11.1V 5200mAh] - 12 Months Warranty Battery type: Li-Polymer; Capacity: 5200mAh/58Wh; Cells: 6-cell; Voltage: 11.1V. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support,12-month hassle-free warranty. Operation time: the actual operation time will depend on how much electricity is required by the device and how you use it.