WFCO WF-9800 Series Deck-Mount Converter/Charger. The versatile, advanced power source solution. Convenient deck-mount installation. 16843 Converter/Charger is 55 Amp DC, and replaces Parallax 7455, Atwood 55, and Lota DSL-55. WFCO Converters come with the following features and safety protection: Features: 3 Stage batteries charging system. LED fuse boards. UL, cUL-Listed FCC Class B. Protection: Reverse Polarity. Over Temperature. Short Circuit. Overload. Over-current. Current controlled fan.