Charles 40 Amp 12V 9000 Series Battery Charger CI1240A

These marine UL listed chargers use self-regulating ferroresonant transformers devoid of any complicated switching circuits to charge up to three battery banks simultaneously. Built with rugged stainless steel enclosures and UL recognized, high-quality components to withstand the marine environment. Accurately charge lead-acid batteries only. Features include an easy-to-read ammeter to indicate rate of charge and ingnition-protected components for safety.