Powerextra 14.4v 3800mAh Battery Compatible with Irobot Roomba 400 405 410 415 416 418 4000 4100 4105 4110 4130 4150 4170 4188 4210 4200 4220 4225 4230 4232 4260 4296 Dirt Dog Discover Scheduler Brand new replacement batteries that are manufactured to meet the specifications of the original High quality, high capacity battery for longer running time.convenient to use Ni-MH battery, 3800mAh Capacity, 14.4V made with high quality battery cells 50 percent greater useful life than original Roomba batteries / Custom packaging Compatible with iRobot Roomba 400 Series Floor Vac models Advanced Power System (APS) Battery. Battery Capacity: Upgraded 3800mAh Battery Voltage: 14.4 V Battery Type: Ni-MH Color:Yellow Dimension: 5.7 x 2.7 x 2.5 inches Weight: 1.6 pounds Condition: Brand New High Quality Replacement Battery Discovery Series Create Models Dirt Dog Model iRobot Roomba 400 Series (some example compatible models):400 405 410 415 416 4184000 4100 4105 4110 4130 4150 4170 41884210 4220 4225 4230 4232 4260 4296