EC TECHNOLOGY&reg; New Laptop Li-ion Battery, 11.1V 6-cell 4400mAh, For HP G42 G62 G72, HP Pavilion DM4 DM4-1000 Series, DM4-1001TU DM4-1002TX DM4-1008TX, DV5-2000 DV5-2050CA DV6-3000 DV6-6000 DV7-4000 DV6-3000 DV6-6000, HP Compaq Presario CQ32 CQ42 CQ62 CQ72- 12-Month Warranty Battery type: Li-ion; Cells: 6-cell; Capacity: 4400mAh; 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(6-cell, 4400mah): 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.