Welcome and congrats.
I run my fridge all day and it doesnt even come close to killing my two house batteries. I turn the fridge down to 3.5 when im on the battery power. I trailer my boat so when its. In my driveway its plugged in so fridge is running on the ac power and my batteries are kept charged.
Will your boat be plugged in when its stacked
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"Changes In Latitudes, Changes In Attitudes "

1996 238 Vista dlx "Casper's Toy Too"
2006 5.0GXI w/closed cooling, DP-sm 1.95 drive
Previous boat:
1998 Sundowner 205