If you have problems, particularly in the winter, starting the car due to making short journeys, for example, you may need to charge the battery regularly. Suitable for all lead-acid batteries with 12V rated voltage and rated capacity over 20Ah. The amount of the charging current adjusts automatically and is independent of the charge level of the battery. With protection against incorrect poling. Compact in size (167x200x 95mm) in elegant casing with integrated carry handle. To European standard EN 62355, TÜV/GS tested.