Heated clothing GHJ 12+18V XA. The GHJ 12+18V XA heated jacket is the perfect Bosch garment to keep those who spend long hours on construction sites reliably warm. As an ideal one-piece solution. which keeps you warm despite harsh conditions and even with little movement. it eliminates the need to wear several garments on top of each other. The three-zone heating of this jacket ensures perfect heat distribution and keeps the upper body warm in any weather. The three heating levels, powered by Bosch's 12 V rechargeable batteries, guarantee long-lasting warmth. For added convenience, USB-powered devices can be easily charged via the battery adapter's integrated port. The jacket's heating pads are powered via the GAA 12V-21 charging adapter and a Bosch 12-volt battery or optionally via the GAA 18V-24 charging adapter and the Bosch 18-volt battery (not included). GAA 12V-21 Professional battery adapter (0 618 800 079)