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 two USB ports. 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. A battery has the potential to recharge your mobile up to seven times. Fits DeWalt 10.8V to 20V Li-Ion batteries. Output 2.1 amps at 5V (This product is the adaptor only, battery and USB cable not included)