IBM 08K8201 | Lenovo 9-Cell 10.8V 6600mAh Hi-Capacity Battery for ThinkPad R50 T40 T41 T42 Series

Technical Specs:
- Battery Type: Li-ion
- Voltage: 10.8V
- Capacity: 6600mAh
- Number of Cells: 9
- Color: Black
- Dimension: 8.19 x 2.28 x 0.79 inches
- Weight: 1.2 pounds

Helpful Notes:
1. This battery is compatible with select ThinkPad models only, so make sure to check your device before purchasing.
2. With a 9-cell capacity, this battery provides longer run time compared to standard 6-cell batteries.
3. Li-ion batteries have a longer lifespan and are more efficient than other types of batteries.