If anyone is interested here's what two manufacturers say about charging AGM's:
For maximum battery life, Optima and Odessey advise that normal charging should be limited to 10 amperes. Other manufacturers advise similar limits. So-called sealed batteries can be especially sensitive, but in no case should any automotive battery be allowed to heat significantly while charging. Excessive charging current and temperatures will age a battery before its time and can even be dangerous. When you overcharge a battery, essentially you are manufacturing hydrogen.
I have a Temperature Probe on my two AGM batteries from the Blue Sky Solar Controller, but worry that the 4 gauge line from my High Amperage Alternator may shorten the life of the AGM's when on those long day Truck Camper travels.
One nice thing about AGM's is they recover or recharge from discharge quicker that wet cell batteries.
GARY
GARY
