I have a simple setup with a 1314 and the 125ah led acid deep cycle. The aux battery sees about 14.5 volts while I am driving. My battery did not experience any loss of water but it did lose at least half of it's rated capacity in less than a year. Whether this problem is due to charging method or simply a poor battery is a question I would like to answer but can't. My current plan is to put in a switched voltage drop to let me reduce the charging voltage on long drives, after some initial period of full voltage to allow fast charging. I plan to use a big diode for the voltage drop. Mark
David Beierl wrote: > At 10:04 PM 3/14/2011, Daryl Christensen wrote: >> OK…My van charges at about 13.6 to 13.8 or9 max. All the spiffy >> temp/voltage AGM battery chargers I see are 120V AC input.. >> Is there an onboard “charger widget” for upping the charge voltage to >> the 14.4 the AGB batts need? > > Yes, but you're not going to like it. Because getting up there is easy > (at least on Bosch alternators) - drop-in adjustable regulators are easy > to get. It's getting back down that's the problem, 'cause if you keep > the voltage up there you'll boil the thing dry. |
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