This compact travel charger allows the equipment to be used while charging in the charger base. Charger plugs directly into the vehicle’s cigarette lighter adapter. | Compatible with these: APX 6000, APX 6000XE, APX 7000, APX 7000XE, APX 8000, APX 8000XE, SRX 2200. | Cigarette lighter adapter type: Input: DC 12-24V; Output: DC 12V 1A. | Unit includes a voltage regulated vehicular charger adapter, custom charger base, mounting bracket, nylon strap, and coil cord. | Allows constant communication while on the road. The maintenance mode keeps batteries charged without damaging heat buildup, and a charging algorithm provides for cool charging of the battery.