Feature: 1. ADVANCED POWER SOLUTION: 55AMP RV Converter offers a clean and dependable DC power output of 55 amps, providing a convenient option that eliminates the hassle of replacing the entire unit. 2. 3 STAGE CHARGER: Equipped with three different voltage output modes, this trailer power converter meets the charging needs of sealed batteries, helping protect and extend their lifespan while ensuring efficient charging. 3. QUIET COOLING FAN: The upgraded cooling fan operates only when necessary, ensuring silent operating while enhancing cooling efficiency and overall performance of the power converter charger. 4. AUTO DETECTION AND ACCURATE CHARGING: With automatic detection technology, the converter recognizes the battery type and adjusts the charging mode accordingly, preventing overcharging and undercharging while ensuring no interference with TV, radio, or other signals. 5. VERSATILE APPLICATION: The RV power converter is ideal for a variety of recreational vehicles, including RVs, trailers, making it ideal for powering various electronic devices and appliances on your adventures. Specification: Item Type: RV Power Converter Material: Metal Input Hz: 60 Hz Output Power: 55 Amp DC Output Float Mode (Trickle Charge Voltage): 13.2V DC Absorption Mode (Nominal Voltage): 13.6V DC Bulk Mode (Fast Charge Voltage): 14.4V DC OEM: WF 9855 AD CB, WF 9855 MBA Fitment: Used in a variety of recreational vehicles such as RVs, trailers and campers to power a wide range of electronics and appliances.. Package List: 1 x RV Power Converter 1 x Instruction Manual