Specifications: Model Type: 6720 Battery; Battery Type: 6-cell Li-ion; Voltage: 11.1V; Capacity: 58Wh; Cells: 6; Compatibility: Designed to power your laptop efficiently, this 6720 battery offers a reliable and long-lasting power source.
Compatible Laptop Models: COMPAQ Series: 510, 511, 515, 516, 610, 615; HP 550 Series: 550; HP Compaq Business Notebook: 6530s, 6531s, 6535s, 6720s, 6730s, 6735s, 6820s, 6830s; HP Compaq Series: 2230s, 6720, 6720S, 6730s, 6735s, 6820, 6820S, 6830S.