Dekcell Battery for Armada E500,V300 COMPAQ Volts/AmpH: 11.1V 4400mAh, 6 Cells It is compatible with the following Compaq Laptop Battery P/N: 159524-001, 146252-B25, 192017-001, 246264-001 It can be used in the following Compaq Laptop Models: Armada V300, E500, E500S Series