The ThinkPad T40 Series High Capacity Li-Ion Battery is a rechargeable system battery for the ThinkPad T40 Series which extends unplugged operating time. This battery is also suitable for the ThinkPad R50 series.
- Battery life: Up to 6.75 hours
- Output voltage: 10.8 V DC (nominal)
- Charge time: 4.3 - 7 hours depending on system usage
- Weight: 480g