Typically the Rumba finds its charger and automatically connects. It is not unusual for the charger to move around and get into a corner where the Rumba can not fully connect. This thing will attach the rumba to the baseboard and keep it in the same location where the Rumba can always connect. Note: This design is a copy of akwerdesigns original with a couple of small changes. The first was to make the unit fit a baseboard with a foot molding and the second was to add a small excess power cord storage tray.