CSE&reg; New Laptop Battery for HP Envy Pavilion Dv4-5000 Dv4-5100 Dv4-5A00 Dv4-5100 Dv6-7000 Dv6-7100 Dv6-7200 Dv6-8000 Dv6Z-7000 Dv7-7000 Dv7-7100 [Li-ion 11.1V 6-cell 5200mAh] - 12 Months Warranty