VEVOR WF-8955-AD-MBA Main Board Assembly 55 Amp RV Converter Replacement Unit

I upgraded my RV electrical system to LiFePO4 batteries on a 2019 Thor Four Winds 22E with Chevy Chassis and this is something I had to change to charge the new batteries. The RV came with basic Acid batteries and all the charge controller and the Converter had to be changed out. There will be more challenges I think, but this Converter works perfect. I connected it as per instructions, set the switch to Li and it worked well. On shore power I have the batteries topped off all the time. I installed 100 AH LiFePO4 for the chassis as well, 100 AH in the house battery of the same chemistry. I DIY'd a Shore Power Solar generator with a 200 AH LiFePO4 base battery with a VEVOR 3500 Watt Pure Sine Wave Power Inverter where I can connect to a 30 Amp connector supplying my whole RV with healthy 30 Amp 120 Volts Shore Power, with that I can run the air conditioner for limited time as it allows from a 200 Watt panel feeding back into the box. As financials will permit, I'll parallel connect an 8000 Watts 1000 Farad Super capacitor to this system (about a $1 per Farad cost) to be able to run the Air conditioner and more appliances in a nice sunny day with only a 200 Watts panel. Super Capacitors are fast charging and fast discharging energy storage units. With that there will be enough energy to start the air conditioner as well, without needing to run the gasoline generator. I built another smaller solar generator too with a 100 AH LiFePO4 battery parallel connected with a 667 Watts Super Capacitor combined with a VEVOR 2500 Watt Pure Sine Wave Power Inverter for daily cooking with electricity and for running the fridge. These 2 generators with a combined 500 AH battery bank 400 Watts Solar panels will enable me to live off grid for a while.

It was easy to find and order, and the fit was perfect.

This fit perfectly in the old spot. It was easy to install and the wiring was well-labeled. The lights are so much brighter now. Great product at a reasonable price—no complaints.

Easy to replace and works great.

Installation was a breeze, and the unit works exactly as described. No issues so far.

This replacement item matched or exceeded my needs.

The power converter replaced the factory unit perfectly—everything in the trailer is working like new.

Not just for campers—this is a powerful and versatile power supply. I use it to charge and power various 12V devices. It’s been a great replacement for an old unit I salvaged from a camper.

It works as expected and wired right into place of the old one without any issues.

I used this as a standalone unit in a custom wooden box with good ventilation. It’s been working great—definitely a good buy.