pnichols
Santa Cruz Mountains
Senior Member
Joined: 04/26/2005
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"...it is a liquid which has been absorbed into a fiberglass mat."
John, of course I'm aware that this is the construction ... it becomes "solid" in that the acid's molecules can no longer physically slop/splash/migrate/shift around. However, obviously the positive ions and negative electrons ("charges") can and must move around in a "wet" battery or a "dry" (AGM) battery.
I probably was confusing "equalization" with "stirring" - the former technically involving only charge redistribution and the latter involving physical movement from bubbling of the wet liquid acid. It seems to me that good equalization, however, would/could also include the stirring that high voltages cause in wet liquid battery acid. Of course stirring's main purpose is probably to help reduce stratification in a wet liquid acid battery. With no stirring possible, equalization in an AGM battery probably happens slower (if at all) than in a wet cell battery.
I'd still like someone to explain why Lifeline mentions possible use of equalization and other AGM manufacturers don't talk about it. My guess would be that it is so difficult and slow to bring about in an AGM battery that it may not be worth the effort.
"Note# in hot weather this is a huge problem for AGMs, they cannot be floated at 13.8 volts."
Sam, in my situation the reason I don't worry about my 13.8V converter harming my AGM batteries in CA's notorious warm weather is that I don't float them. They hold their charge so well that I don't find it necessary. I am either using them, or storing them fully charged and disconnected. However, I understand the convenience factor of having a temperature compensated charger where one can just hook it up and forget it.
* This post was
edited 10/06/08 07:08pm by pnichols *
Phil, 2005 E450 Itasca 324V Spirit
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