Longhorn ... thats what I've been doing (110 plugged into FWC pigtail) but I'm not so sure thats the best thing for these deep cell batteries. I'm not even sure that a trickle charger is the best method.
smlobx ... that charger looks smart ... and I would probably buy it or the Battery Tender but I don't want to use alligator clips if I can get around it. Thanks for the input though. It may turn out to be the most useful bit of info.
I don't know much about electronics but the more I inquire, the more I get suspicious of various charging methods (i.e. 110 volts through FWC pig tail and trickle chargers of various makes and models).
I might try calling the Battery Tender company and getting a solid recommendation from them.
Edited by Bombsight, 12 July 2017 - 08:28 PM.