IBM 02K6728 | 4500mAh 9.6V Li-Ion Battery for ThinkPad i Series 1200/1300

Here are the technical specifications of the IBM 4500mAh 9.6V Li-Ion Battery for ThinkPad i Series 1200/1300:

- Battery capacity: 4500mAh
- Battery voltage: 9.6V
- Battery chemistry: Lithium-ion (Li-ion)
- Number of battery cells: 6
- Dimensions: 5.47 x 3.15 x 0.79 inches
- Weight: 10.4 ounces

Helpful notes:
- This battery is compatible with ThinkPad i Series 1200/1300 laptops.
- Lithium-ion batteries have a longer lifespan than other battery types.
- It is always recommended to fully charge and discharge the battery at least once a month to maintain its health.