Dan, Did you ever get a meaningful response? I don't recall seeing one on reflector.
I would believe that the longest battery life would be achieved by floating them continuously at 13.8 volts. I have come to believe that cycling SLA batteries shortens their life, even if the cycling is a result of self discharge. SLA batteries used in Emergency lighting, security systems, and UPS units are normally floated and they seem to enjoy a good long life unless something bad happens. 73, Don W3FPR > -----Original Message----- > > > Sorry to be a bother, but now I have 4 good SLA batteries to > preserve until > needed. I ordered a case (6) for my 3 (2 batteries each) bad > UPSs. I let the > smoke out of one, putting the cover back on (I thought it was > unplugged), I > fixed one, and one was good anyhow; it had simply been > overloaded. So, now I > need to assure these 4 will be good when I want them. I assume I simply > charge them once per period until needed. My question is "What is the > period?". Month, Quarter, 6-Months?, Year? By voltage? Do I need > to trickle > them at 13.8 the whole time? > > Dan / WG4S / K2 #2456 > > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com

