Forum Discussion

Explorer II

Oct 30, 2013

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 to my converter. I get the impression from several posts that this is too small gauge of cable (for the run length) and may limit the PD4655's charge current when it's in the 14.4 volt bulk mode.

True? False?

25 Replies

Bobbo
Explorer III
Oct 30, 2013
I upgraded mine to #4, but Winnebago had put #8 in there.
Pauljdav
Explorer
Oct 30, 2013
Don't worry about it. Even if it does slow the battery charge a little bit it won't be much and you will barely notice it.
Old-Biscuit
Explorer III
Oct 30, 2013
Run length ie:total length of 'circuit' run is the round trip distance from/to battery

6awg cable is good for 50A up to total length of 15'
For your run (8-10' one way) 4awg cable would be better suited.
enblethen
Nomad
Oct 30, 2013
#6 would be borderline.
If it is easy to replace I would go up at least one wire size to #4.
time2roll
Nomad
Oct 30, 2013
How many batteries?