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#11
March 15th 08, 05:32 PM
posted to rec.aviation.owning
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AGM Batteries
On Mar 15, 11:59 am, "RST Engineering"
wrote: That's not QUITE true, according to the Concorde engineer that helped me write the series of Kitplanes articles on AGM charging. The AGM chemistry likes to be cycled. That is, the battery likes to be taken up to 13.4 volts, allowed to self-discharge back down to 12.6, back up to 13.4 and so forth. The cycle time is measured in days or weeks, depending on how much "keep alive" circuits (clocks, radio memories, etc.) are sucking on an "off" battery. Jim Interesting... I wonder if it makes a longevity difference over the good results I am getting by floating the battery? denny 
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