Roomba Vac Advanced Power System Fast Charger

Roomba Advanced Power System (APS) Fast Charger. Works with Roomba 4230 Scheduler, Roomba 4210 Discovery, Roomba 4105 Sage, and Roomba 4100 Red Robotic Vacuum Cleaners. Cuts the Roomba's charging time in half - charges APS battery in less than 3 hours. Genuine Roomba robotic vacuum part.