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MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
Aug 23, 2013

So You Own An AGM Battery...

AGM batteries can sulfate just like any other lead acid battery. Other than by Ouija Board how would YOU determine if a battery has become sulfated and how severe is the sulfation, and if desulfation (equalization) has been done properly.

I'll make this real interesting. Let's take a bank of eight AGM batteries and attempt to sort things out.

This is not a campground test BTW. An at-home test with time and resources at your disposal. How would you handle it?

I'm going to stay out of this and see the answers until and if I am asked to participate...
  • mlts22's avatar
    mlts22
    Explorer
    Aug 23, 2013
    I'd not bother testing, but assume it is sulfated and trigger the pendant on the charger that would get it into desulfate mode.

    I do this with all my batteries if I have ready access to shore power -- just plug them in to a Battery Minder, trigger the desulfate cycle and let the trickle charger do the rest. Some RV converters offer this functionality as well.

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