[RE-wrenches] Charging AGM Batteries

Bruce Geddes bruce.g at ruralinzone.net
Sat Sep 19 12:29:01 PDT 2009


The serious commercial chargers have a deltaI/deltat (current vs 
temperature) alogorithm to detect when electrolysis of the electrolyte 
begins to occur.  Failing that, a Pout vs Pin alogorithm is next best.  Both 
these make for an expensive controller which is hard to justify in domestic 
systems.  The best we can usually work with is a voltage based controller 
and hopefully a charge rate that won't boil the cells. 




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