Bosch GAA 12V-21 10.8v / 12v Compact USB Charging Adapter The GAA12V-21 Professional is Bosch´s compact USB charging adapter. With 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. Its coaxial connection jack allows for powering Bosch heated workwear for warmth while working or during other cold weather outdoor activities. The charging adapter is compatible with all Bosch Professional 10.8v and 12v batteries and chargers (Professional 12V System). FEATURES Turn Bosch 10.8 V and 12 V batteries into USB power banks with 2.1A of charging current Compact design with metal belt clip to carry power reserves on hand at all times Coaxial connection jack for powering Bosch heated workwear for warmth while working and during outdoor activities SPECIFICATION Interfaces DC port: 12V, 1.2 A (only for GHJ 12+18V) USB Port: 5 V, max. 2.1 A Charge Current: 2,1 A Weight: 80g