Stay unplugged longer with these genuine ThinkPad batteries. These rechargeable batteries use Lithium-Ion technology and can be used as replacement for aging system batteries or as a convenient spare battery.
Compatible with T420s, T430s
• Lithium-Polymer (Li-Polymer) technology
• 6 cell system battery
• Battery energy (Watt-hours): 44 Wh
• Compatible with the ThinkPad External Battery Charger (40Y7625)
ThinkPad Battery 81+ (6 Cell) Compatible with T430s, T420s