The Powerbox Automotive Line product range is a family of high density power supplies intended for applications demanding both electrical and environmental ruggedness. The products utilize innovative technologies offering DC/DC converters with a wide range of inputs and output combinations. The portfolio includes high density chassismount converters. The ENA Charger Series DC/DC battery chargers come in ready to use chassismount enclosure with industry standard 6.3mm tab connectors. The inputs are designed for automotive range including immunity according to EN 61000, ISO 7637-2 and EN 12895:2000. The units are designed with conduction cooling allowing heat dissipation through the base plate and small space. Units also has unique smart thermal protection limiting the output power in case of over temperature as well as connection for measuring battery temperature. The ENA Chargers has a charging mode button to toggle between specialized charging characteristics for lead-acid, AGM, gel and calcium batteries. Each charging characteristics are 5 step smart charging maximizing the battery life time and suitable also for leaving the battery connected to the charger.