Key Power Laptop Battery for HP Compaq Presario CQ32 CQ42 CQ62 CQ72 CQ43, Pavilion DM4 DV3-4000 DV5-2000 DV6-3000 DV7-4000 DV7-6000 G4 G6 G7, also fits 593553-001 593554-001 MU06 MU09 [55Wh / 6-cells] Battery type: Li-ion; Capacity: 55WH / 5000mAh; Cells: 6-cell; Voltage: 10.8V. Battery life: 100% New from Manufacturer. Up to 600 recharge cycles over the life of the battery. Safety: CE-/FCC-/RoHS-Certified for safety. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Battery operation time: approximately 2 to 3 hours with premium Grade A Li-ion cells. Compatibility: EXACT 1:1 Ratio capacity same as HP original OEM batteries; also compatible with 10.8V / 11.1V