IBM 02K6691 | ThinkPad Battery Pack

Here are the technical specs of the IBM ThinkPad Battery Pack:

- Compatibility: IBM ThinkPad A20, A21, A22, A30, A31, T20, T21, T22, T23, T30, T40, T41, T42, T43, R32, R40, R50, R51, R52, G40, G41 Series laptops
- Battery type: Lithium-ion
- Battery capacity: 4400 mAh
- Voltage: 10.8V
- Number of cells: 6
- Color: Black

Helpful notes:
1. This battery pack provides a longer battery life for your IBM ThinkPad laptop.
2. It is recommended to fully charge and discharge the battery pack at least once a month to maintain its performance.
3. The battery pack is lightweight and easy to install, making it a convenient accessory for your laptop.