... 1.14.4V 3300mAh NI-MH battery for irobot Roomba 400 series 2.for Irobot roomba400 3.High quality 4.Long cycle life ... APS battery Replacement Battery for iRobot Roomba 400 ,405 ,410 ,415 ,416 ,418 ,4000 ,4100 ,4105 ,4110 ,4130 ,4150 ,4170 ,4188 ,4210 ... 50 percent greater run-time than original Roomba batteries Replacement rechargeable battery for iRobot Roomba 400 Series, Discovery Series and Original ...