High-Capacity 5200mAh Replacement Battery for Roomba S9+, S9 Plus, 14.4V Compati
Roomb S9 series. Roomb S9 Plus series. Roomb S9 9150 series. Roomb S9 Plus 9550 series. Capacity: 74.88Wh (5200mAh). Enjoy longer cleaning sessions without interruptions.