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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
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Converter arrived quickly. Took me awhile to retro fit from old one but works great. Went from output of 4.4 volts to 13.6 volts with new converter. Would recommend product. Thanks
Installed in my older 2002 Winnebago motorhome I like the fact that it bolted into the current enclosure and will make my batteries last longer.
It was quite easy to install so it makes a good do it yourself project. As for reliability and performance, well that's a proof in the pudding thing,but I don't forsee any problems.
Easy installation. Good instructions. Looks well made and fixed the power problems in my Roadtrek. Fast shipping and great customer service.
Thank You E Trailer team. Excellent wor k.
I had a problem with the first one I received, I called E-Trailer and they sent me a new one right away! Happy with the service! The new one worked great!
Easy to install and wire up. Clear instructions. Quiet and lighter than the original.
Looks great came in a very timely fashion. The only thing I found concerning is the lack of installation/user manual.
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.
It was a perfect swap for our old converter. We had it installed by a friend and it only took him about an hour he said to get it all hooked up start to finish. We are thankful for the help we received when we called in before purchasing.
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.
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.
Perfect replacement and resolved my issues with battery not charging...
The replacement instructions I found online for it were perfect and complete with images. After testing the old one in my 1996 rv, I got up the nerve to change it out. The problem? I'm a 78 year old woman and the blankin' thing was on the floor under the dinette seat. So I spent the project time laying on the floor trying to see everything...Nailed it!
Great item, it is exactly what I needed to power up the trailer. I phoned in and talked with Chris. I told him the unit I was looking at. His research got the unit I needed. Three days later it arrived. Upon opening the package I noticed there was no instructions or warranty paper work. I called again and Chris sent them by email. Great job Steve.
Straight forward install. Converted to Lithium with jumper. Charging like it should. Very happy with purchase.
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.
This was a blessing for a young couple in need. Providing much needed A/C, power, and microwave.
This unit has greater increased my confidence in my rigs electrical. It runs more efficiently and quieter than my original unit and it fixed the issue I was experiencing.
Fit like a glove in our 2010 casita replacing the original parallax 7500. Bought a new AGM battery and everything seems to be working fine. Ashley at etrailer was great to talk to and helped us get the right converter/charger(pd4645v). I’ve used this company before and they are excellent. The only reason I didn’t rate this experience five stars is we didn’t get manual/ instructions but we looked it up and utubed the installation process.
Perfect replacement as described. had a chat session, and the video, very simple install.
Louis
7/13/2026
Still doing great!
Lazer S.
7/13/2026
I upgraded my 2002 Lance camper to a lithium battery, which required replacing the factory converter to properly support the new setup. This Progressive Dynamics unit arrived on time and was well-packaged.
Installation was straightforward and very manageable for a DIYer with basic skills. The unit comes preconfigured for AGM/lead-acid batteries, and switching to lithium only requires moving a small jumper over one pin. That process is simple in theory, but the jumper is mounted facing inward, which makes it a bit difficult to see and access. It would be an improvement if the manufacturer either oriented the jumper outward or, better yet, used a small external switch for battery type selection.
I also didn’t notice clear instructions included for changing the battery type. I already knew what to do from prior research, but first-time users might find that step confusing.
So far, the converter appears to be working as expected. I haven’t had the chance to test it under real camping conditions yet, as the camper is still at home, but initial performance has been solid.
Mike L.
4/16/2026
I agree, it is indeed more difficult that it needs to be, but I'm very happy to hear that you figured it out. Good job!!
Easy install and the replacement is working very well. However, not clear direction on lithium selection mode (it is not a switch but a tab that needs to be lifted off and moved to a new position). Install required a larger breaker and wire due to the added power of the charger compared to my old 45amp component. Knowing the possibility ahead of time would have been nice. Overall 2 days in I am happy with the unit’s performance and installation was way easier than I expected. I chose to replace the optional 12v panel.
The lithium selector location is in the second photo.
Nick S.
1/5/2026
I am glad the installation was a breeze and it is working well for you. The Lithium selection should be a very small switch located around that second photo that needs to be flipped for that activation.
Recently, my wife and I have been experiencing battery issues with our motorhome. Thanks to e-trailer, I was able to determine I was having a charge issue from my converter. I ordered the PD4645 and followed the instructions. In less than an hour, I was upgraded and the system was back in full operation. I especially like the multistage charging based on battery condition. Job well done by e-trailer once again. A special thanks to Neil for providing
Lazer S.
2/10/2026
Glad we could get you back in action, Benjamin! I'll let Neil know he got you all squared away as well! : ) What kind of motorhome did you install this in?
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.
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!
Mike
4/2/2026
Still running flawlessly. I’m about to switch to lithium batteries, so this was the right choice to buy!
Do you have a question about this Accessories and Part?
Condition: Badly Dinged
Notes: The corners of the frame are bent. Otherwise, new and unused. All hardware is included.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
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
question-642892.html