Charging a Battery Bank

RobWNY wrote:
If I was a betting man, I would bet the WFCO 8955 isn't doing it's job though. From what I've read all over the internet, they fail at an alarming rate.

Yeah, I'm not sure myself whether this "alarming" WFCO failure rate is real or just internet folklore. :? I've owned several WFCOs myself in several different trailers, my current Coachmen has the same 8955, and I've had no issues at all with any of them except that none of them has ever charged at 14.4 volts. :( I suspect however that's as much due to the fact trailer manufacturers allow little consideration for cable resistance & resulting voltage drop and just run as much 6 gauge as is necessary between the battery and converter, regardless of how long that run may be. In my case I've sidestepped that issue by simply turning the WFCO off and instead using a standalone CTEK Multi US 7002 7 amp charger connected directly to the battery to properly charge the battery. For a single battery rated up to 150 AH it works well but for a dual battery setup I'd have to upgrade to a heavier CTEK Multi US 25000 or NOCO Genius G26000 charger OR alternately, install a Progressive Dynamics PD9260 converter in the front pass through cargo compartment and use it just as a charger. Those are pretty costly upgrades though so considering the limited number of times we camp without shore power I'm more likely to just upgrade from my aging G27 to a new G31, continue to use my current CTEK to care for that battery, and load support the battery with my truck when I want to run the inverter under heavy load. That said, I do understand the preference many have for two 6 volt GC-2s but I suspect many who make this upgrade don't also give proper consideration to how their going to properly maintain those batteries, as their stock converter in many cases just can't.