A charging assembly for an oral health device is disclosed. The charging assembly includes a first coupling end including an electrical contact configured to electrically connect to a battery of the oral health device; a second coupling end including an electrical contact configured to electrically connect to a power source; and a controller position between the first coupling end and the second coupling end and electrically coupled to the first coupling end and the second coupling end, wherein the controller selectively enables current to flow from the second coupling end to the first coupling end.