bigcitypopo wrote:
two 12v standard interstate grp24 batteries, and wfco 8955... it never seems to go into boost mode. the wire has 19 strands of copper in it... seems thin
Wire is probably #6 I'm betting. That seems to be the "standard" of the RV industry. And the WFCO is notorious for not going into boost mode. If it does work it needs two things: short thick wire and batteries have to be under 50% SOC. Most people don't bother. The WFCO is good for handling things on shore power though so no need to get rid of it. On my "old" 5er, I got a second deckmount converter and put it close to the batteries and used that for charging. The WFCO was used for floating and when I was at a full hookup campground.
