PRODUCT INFORMATION
Upgraded Replacement:
This Main Board Assembly is a quick, easy replacement part for WF-9865 WF-9865-AD & WF-8900-AD Series Power Converter, Parallax 7145 and 7155 Power Center. It’s a converter charger from AC to DC used for travel trailers

Lithium Battery Converter:
The upgraded WF-9865-AD-MBA RV Power Converter is designed for RV lithium batteries. Three-stage intelligent charging technology provides the best charging solution at any time according to the life and status of lithium batteries. It reduces the complexity of identifying batteries compared to traditional power converters, which allows us to maintain the life of lithium batteries better

Auto-Detect Technology:
The new microprocessor-driven technology will recognize lithium ion and lead acid battery chemistries and automatically adjust the charging profile to match the battery type. No more buttons and No more switches. RV owners will know that their batteries will be accurately charged, eliminating over and undercharging risks. Prevent overvoltage, overcurrent, overload, overheating, short circuit, and leakage

Specification:
Output current: 65AMP; Output Power: 950 W; Output Current: 950 W; Input Voltage/Hz: 105-130 VAC, 60 Hz;

Converter Type:
Three-Stage Converter Charger; Voltage Output: 13.2–14.4V DC Range; With a current output of 65 amps, it can boost a 200AH battery to over 99 percent in less than 4 hours.

Easy Installation:
The installation of WF-9865-AD-MBA rv converter is simple and fast. It only needs to connect three AC wires, 2 DC wires, and tighten 2 screws. With no need to re-wire, installation is only 10 minutes! There is another option for Reverse Polarity Detection that meets new RVIA & NEC requirements with audible alarm notification. No additional wiring or hookup is required and accepts hi-pot testing
On Feb 4, 2026 at 23:50:34 PST, seller added the following information:

On Feb 5, 2026 at 00:06:01 PST, seller added the following information:

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