I have 2 12v batteries set in parallel in the coach. The charger I purchased is designed to charge both batteries separately at 6 amps each. I had an accumulation of bass pro shop gift cards.
hence the charger type used in a bass boat. The charger connects directly to each battery individually and will charge them simultaneously at 6 amps each. I"m hoping to charge them faster than the converter on the coach to reduce generator usage/noise.