ThinkPad T61/R61 Series battery options for 14-inch wide systems come in three capacities for maximum battery life flexibility. All batteries are rechargeable and they can be used as replacements for aging system batteries or as convenient spares. The ThinkPad T61/R61 (14-Inch Wide) Standard Battery offers up to 3.6 hours of charge time.

Features
- Lithium-Ion technology.
- Four-cell, rechargeable system battery, 14.4 V dc, 2.6 Ah.
- 3.2-3.6(Integrated)/2.3-2.4(Discrete) hours average battery life.
- Standard system battery specifications.
- Over-discharge protection.