EC TECHNOLOGY&reg; New High Quality New 6 cell Laptop 11.1V Li-ion 4400mAh Battery For HP G42 G62 G72; HP Pavilion DM4 DM4-1001TU DM4-1002TX DM4-1008TX DV6-3000 DV6-6000; Envy 17; HP Compaq Presario CQ32 CQ42 CQ62 CQ72 CQ42-185TX CQ42-186TX CQ42-187TX CQ42-188TX CQ42-189TX CQ42-190TX CQ42-195TX; MU06 MU09 593553-001 593554-001 WD549AA WD548AA WD548AA#ABB HSTNN-Q60C HSTNN-F01C (12 Months 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.