Portable tool storage device, e.g. for electric drill, converts direct current from rechargeable battery into alternating current for supplying to power pack recharger

摘要

A power supply unit has a rechargeable battery powered by a battery charger connected through a socket (24). A direct current (DC) to alternating current (AC) converter connected to a power pack recharger through the socket, converts direct current from battery into alternating current for supplying to the power pack recharger.