BAKTH 14.4V 4000mAh High Capacity Replacement Battery for iRobot Roomba 400 series Roomba 400 405 410 415 416 418 4000 4100 4105 4110 4130 4150 4170 4188 4210 4220 4225 4230 4232 4260 4296 + Customized Coaster Ni-MH battery. 4000mAh Capacity. 14.4V made with high quality battery cells Real high capacity battery for longer running time. Convenient to use Compatible with iRobot Roomba 400 Series Floor Vac models Advanced Power System (APS) Battery Integrated microchip prevents overcharging & lengthens battery life Package contents: 1 x BAKTH 4000mAh battery, 1 x BAKTH customized mouse pad as gift