NAPA offers the intelligent, portable Bosch C3 and C7 battery chargers to provide quick, easy and safe battery charging. Suitable for all types of lead-acid batteries with voltage ranges of 6V/12V with the C3 and 12V/24V with the C7. The chargers are controlled by an internal MCU (micro-computer unit), for automatic monitoring and intelligent charging at all times. The C3 charger comes with a vehicle-mounting hook for mobile and easy use, and includes a wall-mounting bracket for convenient stationary use.