Cable Requirements for PD4655 Converter
I have the infamous WFCO 8955 converter in my toy hauler. Considering upgrading to a PD4655 to reduce my battery charge times. I have approx. 8-10 feet of 6 gauge cable that runs from my battery...
Forum Discussion
If it's easy, go with #4 welding cable easy to get, reasonably priced, and run the negative to the frame rather than a long run to the battery.
And if I remember correctly, #4 is the biggest dia wire you can get into the PD lugs.
#6 of that length will limit the current somewhat, and likely have it drop out of constant current a bit early. However if it is difficult to change, I'd at least start with the #6 and see what happens. I think you'll still see way better results than the WFCO.
How much it affects charging is noticeably dependent on what kind and how many batteries you have. Based on my previous experiece with wire size and PD converter, the #6 will likely get you in the 50A range, and #4 closer to the full 55A range if the batteries are discharged enough.
If you were looking at the 60A or 80A unit, another story, then you would need to upgrade the wiring.
And if I remember correctly, #4 is the biggest dia wire you can get into the PD lugs.
#6 of that length will limit the current somewhat, and likely have it drop out of constant current a bit early. However if it is difficult to change, I'd at least start with the #6 and see what happens. I think you'll still see way better results than the WFCO.
How much it affects charging is noticeably dependent on what kind and how many batteries you have. Based on my previous experiece with wire size and PD converter, the #6 will likely get you in the 50A range, and #4 closer to the full 55A range if the batteries are discharged enough.
If you were looking at the 60A or 80A unit, another story, then you would need to upgrade the wiring.
