Dell 0D5540 | 9-Cell 11.1 Volt Li-Ion Battery

Here are the technical specifications:

- Chemistry: Lithium-ion
- Capacity: 85 Wh
- Voltage: 11.1 V
- Number of cells: 9
- Dimensions: 8.11 x 2.13 x 0.79 inches
- Weight: 1.3 pounds
- Compatibility: Dell Latitude D620, D630, D631, D640, D830, D631N, Precision M2300

Helpful notes:
- This battery has a higher capacity than the standard 6-cell battery, providing longer run time.
- Lithium-ion chemistry ensures a longer lifespan and lower self-discharge rate compared to other battery types.
- Always check the compatibility list before purchasing to ensure it will work with your laptop model.