HQRP AC Adapter plus Battery for iRobot Roomba 4000/4100 / 4105/4110 / 4130/4150 / 4170 Power KIT replacement plus HQRP Coaster HQRP&reg; AC Adapter plus HQRP&reg; High Capacity Battery plus HQRP&reg; Coaster; AC Adapter Power Input: AC 100V - 240V; Output: DC 22.5V; 1.25A; Battery Type: Ni-MH Rechargeable Battery Pack; Capacity: 3300mAh; Volt: 14.4V. High Drain! 15% more charging cycles compared to the standard battery! 10% more capacity and extra power compared to the standard battery! 100 days warranty!