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Make your IBM laptop computer even more effective by replacing the original battery or adding a spare IBM 40Y6797 battery from LaptopBattery.us. Our high quality laptop batteries are engineered to perfectly complement the fit and finish of your IBM laptop computer as well as offer full compatibility with applicable OEM sleep and power reduction modes.
IBM 40Y6797 Battery Specifications and Capacity Options:
| Standard Capacity Option | High Capacity Option | |
|---|---|---|
| Volt: | 10.8 | 10.8 |
| Chemistry: | Lithium-Ion (Li-Ion) | Lithium-Ion (Li-Ion) |
| Capacity (mAH): | 4400 mAh | 6600 mAh (50% more power) |
| Capacity (WHr): | 48 Whr | 71 Whr (50% more power) |
| Number of Cells: | 6 | 9 |
| Color: | Black | Black |
| Remarks: | May not fit into laptop docking station |
Environmentally Responsible and Stringent Quality Standards:

Choose the LaptopBattery.us IBM 40Y6797 battery as an environmentally responsible battery upgrade solution with RoHS certification that insures that our laptop battery is free of lead, cadmium and mercury.
Our IBM 40Y6797 battery is similar to the original and meets stringent quality standards. This battery is manufactured with high quality "A" grade cells and components in a ISO9001 certified manufacturing facility. Our dependable quality laptop batteries offer longer runtimes and lifetimes with unsurpassed US-based support and an industry leading 1-year warranty to make your IBM laptop run better than new!
Over 100,000 satisfied customers can't be wrong:
We realize that you have a lot of choice in deciding where to purchase your IBM 40Y6797 laptop battery. Here are some of the reasons we stand out from the rest: