Stay unplugged longer with ThinkPad Battery 80+ (6 Cell). This rechargeable battery uses Lithium-Ion (Li-Ion) technology and can be used as replacement for aging system batteries or as a convenient spare battery.
Lithium-Ion (Li-Ion) technology
Six-cell, rechargeable system battery, 57Wh
Standard system battery specifications
Supports the Edge 11 ThinkPad
For more information on batteries, visit: http://www.lenovo.com/support/batteries or http://www.lenovo.com/alldaycomputing
For more information on options, including compatibility, visit: http://www.lenovo.com/accessoriesguide