Abstract: A battery charger and emergency power supply assembly includes a housing. A switch is positioned in the housing and electrically coupled to a power supply. At least one electrical plug outlet is mounted in the housing and electrically coupled to the switch. A battery charger is mounted within the housing and is electrically coupled to the power supply. Each of a plurality of charging ports extends into the housing and is electrically coupled to the battery charger. Each of a plurality of rechargeable batteries includes plug members adapted for electrically coupled to the charging ports. An inverter is electrically coupled to each of the charging ports. The inverter is also electrically coupled to the switch. The switch may selectively open a circuit between the plug outlet and the power supply or the plug outlet and the inverter.