"Disconnect before using external charger" - Ooops!
One of my aviation magazines had an article on a charger from HF that will disulfate old batteries, etc. It also has some nice automatic feature and good visuals. I hooked it to the engine battery for an hour or so... Then hooked it to the 2x12v house batteries in parallel. ...then, I saw the placard.
I disconnected the 2x12s and did them individually... BUT, is there anything I should be on the lookout for? The engine starts, the Gen works, but I'd hate to have some mystery issue pop up.
(the quickie stairs are acting up.. but I gather that comes with the territory)