Big Love wrote:
I have two TTs that came with WFCO converters. Neither one could get into 14.4 volts for fast charging of a depleted battery and neither one got into 13.2 trickle charge mode once fully charged. They both only provided 13.6 volts constantly. This is not ideal for battery life and could eventually lead to premature battery failure.
A presumption not borne out by my own experience. My current flooded Interstate G27 will be 9 yrs old in May, has been used on 3 different trailers each of which had a WFCO converter, the first and current being 8955s. We mostly camp on electric sites, only draw down the battery any significant amount on occasion if we happen to lose campsite shore power for one reason or another. The voltage monitor I use always displays in the 13.6 to 13.7 volt range when the converter is powered, never more, never less, yet this battery still maintains a full charge. It wasn't until last fall when I had the opportunity to buy a CTEK portable charger at a great price that I turned the WFCO off and began using the CTEK which does do an honest 14.4 volt bulk charge, a proper absorption charge, and a proper trickle charge. Over the winter I've been using it in the workshop to maintain this battery and fully charged, once surface charge has fully depleted, it's rest voltage consistently sits @ 12.82 volts. Clearly these WFCOs in my case did
not lead to "premature battery failure". ;)