... 400 Series ReplacementFeatures Charges up in 3 hours with Roomba APS battery charger Compatible with both Roomba 400/4000 Series including ... cells NIMH High Power 14.4V 3000mAh (3Ah) rechargeable replacement APS battery Replacement Battery for iRobot Roomba 400 ,405 ,410 ,415 ... ,4220 ,4220 ,4225 ,4230 ,4232 ,4260 ,4296 Replaces original Roomba APS battery part 4905 Up to 50 percent greater run-time ...