Bosch GAA 12V-21 Professional USB Charging Adaptorwith a 2.1A of charging current. It turns Bosch 10.8V and 12V batteries into USB power banks. Its compact design and convenient metal belt clip make it possible to carry power reserves on hand at all times. The coaxial connection jack allows for powering Bosch heated workwear for warmth while working or during other cold weather outdoor activities.

Compatible with all Bosch Professional 10.8V and 12V batteries (Professional 12V System).