CTEK battery chargers are perfectly suited for charging all types of lead-acid batteries and lithium. A CTEK charger is easy to use. It can be connected for an extended period gently maintained by pulses. The charger is electronic safe, which means you do not normally need to remove the battery from the vehicle when charging. In addition, it is reverse polarity protected and short circuit proof. The charger also has spark protection system. CTEK battery chargers are approved for outdoor use.