There is disclosed a system for sharing power among interconnected tools which is made up of multiple battery-powered tools, each with a battery. Each tool and its battery are electrically connected to a hub, and the hub is adapted to provide charging current to each battery, to monitor the charge level of each battery and to direct current from one battery with a higher charge level to a battery with a lower charge level. The system is also adapted to enable the hub to direct power to corded electric tools.