Features Battery Rechargeable Yes Battery Chemistry Lithium Ion (Li-Ion) Battery Capacity 4400m Ah Battery Energy 63 Wh Number of Cells 8 Output Voltage 14.4 V DC Maximum Battery Run Time 6 Hour Minimum Battery Recharge Time 2.5 Hour Maximum Battery Recharge Time 5 Hour
Dimensions 10.6" Height 0.8" Width 1.9" Depth Weight 0.98 lb Miscellaneous Additional Information HP Fast Charge Technology: charges the battery up to 90% within 1.5 hours when system is Off Compatibility with Hewlett Packard Compaq Business Notebooks: 6720s 6735s 6830s