Compact microprocessor-controlled chargers with 3 stage charging. It produces its maximum current during the first cycle distributing automatically what each battery needs without risk of overcharge. Enameled non-corrosive aluminum case. Universal input voltage (90-265Vac). LED ammeter. Battery and temperature selector switch. Reverse-polarity protection. Equalization and fixed voltage modes. For 3 batteries, with isolation between the outputs. 2 year warranty.