DTK 12 cells 10.8V 8800mAh Laptop Battery for TOSHIBA Satellite C600 C600D L700 L750 A600 A655 A660 A660D A665 A665D C675 C675D L630 L635 L640 L645 L645D L650 L655 L670 L675 L675D L735 L735D L740 Battery type: Li-ion; Capacity: 8800mAh; Cells: 12-cell; Voltage: 10.8V Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. 24 x 7 email support, 12-month hassle-free warranty. Operation time for standard batteries(12-cell, 8800mah): Around 4 hours, the actual operation time will depend on how much electricity is required by the device and how you use it. overheating protection overcurrent protection overvoltage protection overcharge protection over discharge protection