Need to make an urgent call whilst on site, but your phone is low on power? Here’s the solution, a USB adaptor that fits onto your power tool battery. It allows you to use the power stored in the battery to charge your mobile phone, tablet, GPS, camera or any other device via a USB port. This invaluable device transforms a battery into a portable charger. With the USB adaptor you have a reservoir of power available during a power cut or lack of supply. Not just for site use, it’s great for camping, caravanning and other leisure pursuits allowing you to make fuller use of a power source you already own.