Portable electric power source for power hand tool, has bag provided with opening on top, rechargeable battery provided in bag, and cable connecting rechargeable battery to power hand tool through opening

摘要

The source (1) has a bag arranged to worn by a user and provided with an opening (11) on a top. A rechargeable battery (20) is provided in the bag. A cable (100) connects the rechargeable battery to a power hand tool through the opening. An electronic checking unit (30) is provided between the rechargeable battery and the power hand tool, where the electronic checking unit allows controlling the power hand tool. Another cable (200) connects the rechargeable battery to the electronics checking unit.