AGM Battery Charging THE PRIME DIRECTIVE
I have gotten several communications about AGM battery maintenance. Using solar voltaic charging. The big error I read is that the subject of total and complete recharging is not mentioned. And tha...
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Recharging AGMs once you get home is so easy !!!
Just set the adjustable voltage charger to 14.8 (if that is the "cycle use" spec) and make sure the charger is current- limited to no more than the spec for the battery (27 amps per 100 for my 27 format 100AH ones- so I use a 55 amp charger set to 14.8 on the pair)
Wait till amps fall to under an amp (needs an ammeter--I use the Trimetric) for under 0.5 each and then declare victory. Crank the charger down to 13.8 Floating spec and leave it all till next camping trip.
Now I have another AGM (250AH) but it says to use 14.4 instead of 14.8. Whatever, same deal, only now I am allowed 100 amps for the 250 at 14.4. OK so drag out my PowerMax 100 amp adjustable voltage and set 14.4 and let her rip. Once amps get below 1.25, I can go to Float on that. Too easy!
Compared with Wet batt drill using hydrometer and the Trimetric and holes in your clothes, this is a picnic! :)
Just set the adjustable voltage charger to 14.8 (if that is the "cycle use" spec) and make sure the charger is current- limited to no more than the spec for the battery (27 amps per 100 for my 27 format 100AH ones- so I use a 55 amp charger set to 14.8 on the pair)
Wait till amps fall to under an amp (needs an ammeter--I use the Trimetric) for under 0.5 each and then declare victory. Crank the charger down to 13.8 Floating spec and leave it all till next camping trip.
Now I have another AGM (250AH) but it says to use 14.4 instead of 14.8. Whatever, same deal, only now I am allowed 100 amps for the 250 at 14.4. OK so drag out my PowerMax 100 amp adjustable voltage and set 14.4 and let her rip. Once amps get below 1.25, I can go to Float on that. Too easy!
Compared with Wet batt drill using hydrometer and the Trimetric and holes in your clothes, this is a picnic! :)
