Hello Alessdateh
Thanks for your question. For which model are you looking for a replacement battery?

The X Life battery here is compatible with the following models: Roomba 500 Series and models 605, 612, 615, 616, 620, 621, 631, 651, 765, 772, 774, 775, 776, 782, 785, 786, 865, 866, 870, 875, 876, 880, 886 and Scooba 450.

We hope we have been able to help you, otherwise please feel free to contact us again.

Best regards,
Your iRobot Team