Originally Posted by ScottBrownstein
Funny, but in 15 years on both this and other RV forums, I have never heard anyone say anything good about a WFCO converter. They must have a really good volume price to the RV manufacturers. Now, my Georgetown came with a PD, so hopefully the manufacturers are waking up to the problems.
After reading the WFCO manual, I'm convinced WFCO converters usually work as WFCO intended them to. But usage scenarios vary widely from one camper to the next, and the battery charging needs of one user are not nearly the same as the next.
The WFCOs are liked by the RV manufacturers because they are programmed very conservatively to avoid battery gassing and over-charging. And they use cheaper components, and are cheaper to buy. For example, the WFCO will not go into bulk mode unless the battery is pretty low, and for some users not at all. The WFCO, per the manual, will not go into trickle charge for at least 44 hours at a steady current output. That means that while camping, the WFCO essentially stays at 13.7 volts all the time unless you drag the batteries really low, and can trigger bulk mode. It also means slow recharging on a generator or shore power.
The PD is usually programmed more aggressively, and will go into bulk mode sooner and stay there longer. I believe some PD units can be manually forced into a particular charge mode.
On my A-frame the converter is also the power distribution panel, so replacement of the WFCO is not as easy. For our camping style, the WFCO is adequate. We put in two GC2 6V batteries (232 AH), and that is sufficient for 4 nights with the heater. We don't use inverter, generator, or solar to avoid the hassles of each. But we never spend more than 4 nights in any one place. Put the A-frame in the garage when we get home, plug it in for 3-4 days, and we are ready to go again. KISS camping - I like it.
2014 Rockwood A122 A-frame
2008 Hyundai Entourage minivan
camping Colorado and adjacent states one weekend at a time