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Product Details
✓CONFIRM BEFORE ORDERING - Match WF-8955-AD-MBA, 55A rating, dimensions, mounting points, plug layout and AC/DC wiring to removed board; fits WF-8955-AD-MBA/MBA/PEC/AN, WF-8900/8900-AD, Parallax 7145/7155; don't order by RV model alone; compare model, connector layout and mounting points first.
✓55 AMP MAIN BOARD REPLACEMENT - Replaces the lower converter/charger section instead of the complete distribution panel. Accepts 105-130V AC, 60 Hz shore power and supplies up to 55A DC for the RV 12V system and battery charging.
✓AUTO-DETECT BATTERY CHARGING - The microprocessor recognizes lead-acid or lithium battery chemistry and automatically selects the matching charge profile. AGM batteries use the lead-acid profile; no manual battery-mode switch is required.
✓SMART MULTI-STAGE OUTPUT - Lead-acid charging operates from 13.2V to 14.4V through bulk, absorption and storage/float stages. The lithium profile operates from 13.6V to 14.6V, allowing the board to match the detected battery chemistry.
✓PROTECTION AND INSTALL NOTE - Over-current, over-voltage, over-temperature and reverse-polarity protection help safeguard the system. Main board only, not a complete power center or inverter. Disconnect AC power and battery before installation.