Trickle chargers can't overcharge...but you need to make sure the charger as well as the converter circuitry in your montana meet the requirements of the agm battery. If they don't, you will be replacing the agm's sooner than you wanted to. John
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2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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