Stay unplugged longer with ThinkPad Battery 55+ and ThinkPad Battery 55++. These rechargeable batteries use Lithium-Ion (Li-Ion) technology and can be used as replacement for aging system batteries or as a convenient spare battery.
- Lenovo 9-Cell Lithium-Ion ThinkPad Battery 55++
- Lithium-Ion (Li-Ion) technology
- Nine-cell, rechargeable system battery, 94Wh
- Standard system battery specifications
- Over-discharge protection