Application: WF-9855 Deck Mount Power Converter charger Replacement for RV Trailer Camper 9800 Series,It is compatible with a variety of recreational vehicles such as RV, trailers and campers. perfect for powering electronic devices and appliances. It have over current protection, over temperature protection, over voltage protection, and reverse polarity protection.Protect your battery and extend battery life. Data detail: Output power: 55 Amps DC output; Power input: 950W; Input Voltage/Hz: 105-130 VAC; lnput Frequency: 60 HZ; Float Mode (Trickle Charge Voltage): 13.2V DC; Absorption Mode (Nominal Voltage): 13.6V DC; Bulk Mode (Quick Charging Voltage): 14.4V DC. Great Feature: The converter will not interfere with TV, radio or other signals. Electronic current limiting automatically shuts down the power during overload or short-circuit conditions. Quiet operation is assured as the cooling fan runs only when needed. Three-Stage Power Converter: Three-Stage Auto Detect Power Converter.Three nominal voltage output modes are suitable for Lead Acid and Lithium-Ion Batteries, replacing any single-stage converter.Auto-Detect technology will identify the battery type and chemical composition, and automatically adjust the charging mode.Solve the power supply problem of various electronic devices and appliances. Satisfaction Guarantee:If you are not satisfaction or have any questions about our product. Please feel free to contact us. We will provide professional service to solve your problems. WF-9855 55 Amp Deck Mount Power Converter Replacement for RV Trailer Camper 9800 Series,Deck Mount Three-Stage Power Converter Charger