Stay unplugged even longer with ThinkPad Battery 28++. These rechargeable nine-cell slice batteries use 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
- 9 cell slice secondary battery attached to bottom of system
- Connection via docking port
- Battery energy (Watt-hours): 94 Wh
- Mechanical On/Off indicator
- Compatible with the ThinkPad External Battery Charger (40Y7625)