EC TECHNOLOGY&reg; New High Quality New 12 Cells Laptop 10.8V Li-ion 8800mAh Battery For HP Presario A900 A910, C700 C714NR C769US, F500 F557US F558US F560 F572US F577 F577Cl F579WM F588, F700 F730 F735 F739 F730US F739WM F750 F750US F756NR F763NR, Fits 446506-001 441425-001 EV089AA EV088AA- (12-Month Warranty) Battery type: Li-ion; Cells: 12-cell; Capacity: 8800mAh; Voltage: 11.1V. Built with premium materials and undergoing strict QC process, circuit protection ensures both safety and stability. Grade A cells ensure fast charges and low power consumption, Up to 500 recharge cycles over the life of the battery. Operation time for standard batteries(12-cell, 8800mah): 2-3 hours; for extended batteries(12-cell, 8800mah): 4 hours (Note: The actual operation time will depend on how much electricity is required by the device and how do you use it.) CE-/ FCC-/ RoHS-Certified for safety, 12-month hassle-free warranty.