Arrives before Christmas 
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Upgrades or replaces the converter section for 45-amp Parallax/Magnetek, WFCO, or Parallax RV power centers. Works with Parallax/Magnetek model 6345, WFCO model 8945, and Parallax models 7345 and 8345.
Features:
Specs:
Alternate Instructions
California residents: click here
Absolute lifesaver.
Got quoted twice the price of this unit (with overnight shipping!) by a local rv repair shop, for the part only plus an unknown amount of labor!
Overall it took me just under two hours to replace the converter and panel, taking my time and double checking everything. The instructions are absolutely amazing and spot on.
It saved my trip and my batteries. It also prepares me for the future when I switch to Lithium batteries.
My only small complaint is that the new screws on the outer panel are now metal instead of brown, but I just decided to not look in that direction ever again.
Well I would probably like the converter if I knew it was charging correctly. Is it set for charging lead acid or my lithium ion battery? One can only guess. Mode button does what exactly? How do you know what mode it is in. I read some of the answers to these same questions asked by other customers and it seems as though nobody knows for sure. So you guys give me the number to Progressive Dynamics and when I call, it rings 10-15 times and goes to an automated voicemail. I left a message requesting information on how it works and nobody has returned my call. Kind of frustrating. I installed a different Progressive Dynamics converter in my travel lite camper 4 years ago that had a switch for either lead or Li. It’s a shame this one couldn’t have something so simple or come with directions on exactly how you operate it.
Lazer S.
9/2/2025
Hi Ben. The switch on the Progressive Dynamics Replacement Section # PD4645V will have "LI" and "WIZ". LI will be for the lithium iron batteries and WIZ will be for the lead acid batteries. It can be hard to see, but I included a link to a Q&A with a very clear picture you can check out.
Helpful Links
Exact replacement for the Parallax power panel charger/controller in my Winnebago. Easy to follow instructions and all necessary hardware. Fast shipping and easy ordering process. Would definitely order from etrailer.com again.
Instructions were thorough and easy to follow. Also, I did not need any additional help from customer service. Great product, just installed today and seems to be charging up my batteries appropriately. Thanks etrailer !
Brandon
6/13/2025
The product is still working great and I expect many years of service without issue. Thanks e trailer
Kate F.
6/16/2025
I found the converter to be very well built and easy to install as soon as I flashed it up it immediately fixed my trailer 12 volt issues.
I replaced the original AC/DC convertir in our 2004 Roadtrek with a Progressive Dynamics PD 4645. The video that etrailer shares of this swap out along with the enclosed written instructions made it very doable. Great service and personal attention from William at etrailer.
Best converter for your trailer. Battle Born recommends this because of the consistent voltage into the Lithium batter at 14.46.
I bought one that was a returned open package at a discounted price that was said to be checked out but the case was bent and i needed to fix it. other than that it is working great so far
The product is great, and your service is even better. I was shocked at how quickly the power converter arrived. I cannot express how much I appreciate your excellent service. The packaging was very important too. It was heavily protected. Thank you for your great service and products. I'll be ordering again in the near future.
The converter/charger potion of the power distribution center, which controls all the 110 and 12 volt electricity on my 20 year old enclosed car hauler died. I immediately assumed that I would have to replace the entire power distribution center. Then I thought that I might be able to find a converter charger and adapt it to my power distribution center as I often do I turn to Amazon and found nothing that would easily replace the existing Converter charger. Then I remembered etrailer a company with which I’ve had great success in the past and searched for the converter charger for my part number power distribution center. I was immediately given a listing for an updated replacement for the converter charger portion. It would a big improvement over the 20 year old technology in the existing converter/charger. etrailer had complete instructions on line, and installing it was well within this 74 year old’s capability. In addition it would be at my home in 4 days, with free shipping. It cost less the $100 more than a noncompatable unit that would be MUCH, harder install.
It arrived in 3days and installation was exactly as described online. It did require sitting on the trailer’s Fluor for about 5 hours total. In my younger days it would have been closer to 2 hours. The included directions were exactly what was on line, and were complete and completely accurate, among the best I’ve ever used. A couple of times I had to reread the instructions and take a second look at the project, but a Quick look made everything clear.
When the job was complete, and double checked I plugged in the trailer and turned on the battery switch. Evwerything worked and I noticed a blinking light that was not on my older one. A quick read of the operating instructions showed that the rate at which it was blinking indicated it was charging at a medium fate, and it will blink more slowly until the battery is fully charged, at which time it will blink even slower. My older unit never lowered the charging rate, which is hard on battery life.
I am very pleased with the converter/charger, and elated with etrailer!
Victoria H.
4/5/2025
Thanks for sharing your insight Jimmie, this is valuable feedback! It sounds like you had quite the experience, and it’s great to hear that everything worked out well! It’s not every day that you find a solution that not only works but improves the technology you're replacing. Whenever you're ready for your next upgrade, we'll be here and happy to help :)
The power converter fit very well. It powered up right away and so far, no issues. We had an issue with one day delivery, but etrailer refunded the costs. I can only give etrailer 5-star reviews for all the excellent customer service we have had with our orders. Thank you for your excellent service and product availability.
i wired unit e3xactly as instructed..when I turned on the AC power there was a big spart ans smoke fron AC sector and it tripped the breaker feeding the RV...
Lazer S.
9/2/2025
Hi Rod. When something like this happens, it usually means there is a short circuit on the AC (120V) side. Either that or Hot/Neutral wires got reversed, the ground wire was not connected or wired wrong, the black (hot) wire touched ground or neutral, wired to wrong place in the panel (like main lugs instead of breaker), or the converter is defective. Double check the following: Black (hot) ? to AC breaker White (neutral) ? to neutral bar Green (ground) ? to ground bar If those are all correct and you do not see any frayed wires or obvious shorts, odds are it is a defective unit. I haven't seen this happen before, but it can. I would also suggest contacting Progressive Dynamics Tech Support as they can guide you through any other things to check. Their number is (269) 781-4241
We did not have to use the product as our camper was damaged on the road so we just have it sitting. Shipping and customer service reaching out to make sure we had the product we needed and that everything is in working order is great!
The Progressive Dynamics Replacement works great and did not take very long to replace, my brother-in-law had gotten one and told me about it and was pleased with it and now so am I with mine
Dennis
4/23/2025
The progressive dynamics replacement is still working great after a year and I recommend this product if you should need a replacement
Chose this upgraded option due to Blown circuit board on original converter. Charger wizard, lithium battery option and 3 extra fuse options was the right way to go. Install video was helpful as well.
was a very easy process , so glad everything went smoothly, and everything is working again time to go camping . this was in our 2000 Montana 5th wheel
lost power for refrigerator, and other things
I’ve have had this unit in operation for a year and pleased with it. I replace my old original 33-year-old Magnetek unit after I installed a new Norcold fridge and found it wouldn’t operate on AC when plugged into shore power via the old converted. It would if I plugged the fridge into an extension cord directly. I guessed it didn’t like the DC it was getting from the old converter. It operates fine now with the new converter which must have a “sweeter” DC supply.
This converter is excellent, as is the customer service. I had some confusion about the wiring, which the etrailer tech was not able to address. He gave me the manufacturer contact, who spotted my problem from a quick picture of my install. With that corrected, the unit has been running without issue for over a month now. I replaced a 32-year-old converter and the first thing I noticed is that the lights have gone from dim/depressing to bright and cheery. I'm so glad I bought this unit from etrailer rather than the one made in China from [online].
Picture 1 is what I took out; Picture 2 is the new unit.
Tim
5/17/2023
After one year, the unit continues to perform perfectly. I’ve no issues.
It’s been a great upgrade for my trailer
I like the smart wizard battery charging feature
1 Year After Purchase Review
Easy Replacement product
Excellent Charge Results in all conditions
I would recommend to all interested
The instructions were very clear. Tough part was working in close quarters. New charger works very well.
Better than original on my 2005 Liberty Casita. I'm semi skilled and it took me about 2 hours. The etrailer video was a great help. Worked perfect.
The product was pretty much plug and play.Installed on a weekend, had a question but no tech support on weekends. Edges were a little bent but was able to straighten out. Working so far so good. Would recommend.
Brooke M.
4/8/2025
Kudos to you for getting it done! Did you get that question taken care of or is there something I can help you with still?
I am impressed. A company you can count on what they say. Three cheers for E- Trailer
Thank you for a seamless order
Perfect replacement! Thank you!
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Victoria H.
4/1/2025
Wow, sounds like you powered through that repair like a pro Mike! Not only did you save your trip, you’re ready for the next step with Lithium batteries, talk about amping up your RV game! As for those screws, like you said, you won't be looking while you're charging ahead!