There is a trade off using a higher capacity charger, it will shorten your battery life overall. Make sure you have a equalizing phase on your charger, if not higher capacity charger will shorten you batter life even faster. I installed a TrueCharge 2 just for the equalizing of my batteries, and I do use a 60a charger. (the TruCharge 2 is higher just to keep my batteries exercised and in good shape).
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