Stay unplugged longer with Lenovo batteries. This rechargeable battery uses Lithium-Ion (Li-Ion) technology. It can be used as a replacement for aging system batteries or as a convenient spare battery. Battery life (and recharge times) varies based on many factors including screen brightness, applications, features, power management, battery conditioning, and other customer preferences.

Features & Benefits:
- Supports T/R/SL/W/Ze/Zm/Zp 14.1", 15.1" & 15.4" ThinkPads
- Li-Ion technology
- Nine-cell, rechargeable system battery, 10.8 V, 7.8 Ah
- Standard system battery specifications
- Over-discharge protection