The ThinkPad battery 44+ uses advanced Lithium-Ion technology to create an efficient power source for the X230 and X220 systems. These are compatible with the X220 and X230 systems and are ideal for use as a replacement or spare. The 6-cell batteries are rechargeable and allow you to stay unplugged for longer, lasting an average of 63 watt hours*. However, they are not compatible with the ThinkPad External Battery Charger (40Y7625).
*Many factors cause battery life to differ. These include: power management, features, screen brightness, applications, battery conditioning and other customer preferences.• Lithium-Ion (Li-Ion) technology
• 6 cell system battery
• Battery energy (Watt-hours): 63 Wh
• Not compatible with the ThinkPad External Battery Charger (40Y7625)
ThinkPad Battery 44+ (6 Cell) Compatible with X230, X220