Quote:
Originally Posted by Bill
Many RV converters will overcharge the battery if left connected for an extended period of time. The old Parallax converters were notorious for this, and I believe the WFCOs will also do it. Instead, I would suggest a good quality Battery Maintainer (not a trickle charger). There are a number on the market. My personal choice (and it has worked well for me) is a Battery Tender
www.batterytender.com
I have used the small (Junior) 0.75 amp unit for years with good success. Others prefer to add a little more margin and get a larger one. |
A battery tender (or alternate high-quality brand) is best.
Nearly all of the various generation of WFCO Converter units quit charging when the batteries are still a bit to low. That doesn't cause damage as quickly as overcharging (like the older Parallax units did), but it's not as helpful to battery lifespan as a good trickle charger.
Lithium batteries are different, and should be kept at lower state-of-charge for long term storage.