Buying abttery for old laptop?

Hello, I want to buy replacement battery for one old laptop, nx9400. Pld battery is 14,8V, 8-cell, (68Wh)

And Im searching through ebay and I find 2 kinds of batteries for this laptop, 10,8V (6cells) and 14,8V (8 cells).

Are hey intercompatible?

For my laptop they have 6 and 9 cell ones, but both kinds are 10.8 volts.

I looked up your laptop and I see both 10.8 and 14.4 volt ones in 6 cell. One says something like if you need the 14.4 volt version click here and it goes to the other listing. The only 8 cell one I can find is 14.4 volts.

If a 10.8 volt one come out of it I would probably be putting in anotehr 10.8 volt one unless you contact the manufacture and ask if the 14.4 volt one wont have any negative effects.

In fact Im not sure how many cells old battery has.
I concluded that from voltage (14,8V)
Thats 3,7X4 and its not possible with 6-cells…

as long as the paraments is the same, that s ok.

you can’t interchange 10.8V battery with 14.4V battery

10.8V = 3 cells in series
14.4V = 4 cells in series

Normally 6 cell, 9 cell batteries are 10.8V and interchangeable (if model compatible)

4 cell, 8 cell, 12 cell batteries are 14.4V.

some battery packs marked as 11.1V. these also 3 cell series and compatible with 10.8V