V7 - notebook battery - Li-Ion - 1800 mAh

This new Li-Ion laptop replacement battery from V7 is 100% compatible with your Lenovo ThinkPad X40, X41 series (4 cells) (not compatible with X41 tablets) laptop and is rated at 14.8V, 1800mAh. V7 laptop batteries meet or exceed the original LENOVO - IBM laptop battery specifications because they are manufactured for high performance in ISO 9000 factories using the best quality cells and most up to date safety and engineering control standards.