Stay unplugged even longer with ThinkPad Battery 57++. These rechargeable nine-cell batteries use Lithium-Ion (Li-Ion) technology and can be used as replacement for ageing system batteries or as a convenient spare battery.
- Lithium-Ion (Li-Ion) technology
- 9 cell system battery
- Battery energy (Watt-hours): 100 Wh
- Over-discharge protection to prolong the life of the battery