This is an internal battery pack for a FUJITSU laptop, model FMVNBP233. - Brand: FUJITSU - Model Name: FMVNBP233 - Accessory Type: Laptop Internal Battery Pack Thank you for viewing. This is a genuine battery purchased from Fujitsu as a spare. It is a new, unused, and unopened item. After purchase, it was stored in a cool, dark place at home, but I am selling it because I will not be using it. Please confirm the compatible models yourself. Also, returns are not accepted after opening. Please consider purchasing with the above in mind.