Question on galley updates

I'm a big fan of 120 v refrigerators (cheap) and inverters. The last two boats have been set up this way and it works for my style of cruising. I size the battery bank to handle a 12 hour load so I only need to charge in the morning and PM so the rest of the day is peaceful. Also the alternators have been upgraded to 120 amps so at anything above idle, the batteries remain charged.

I run 4 flooded cell 6 volt golf cart batteries rated at 220 amp-hrs connected in one series parallel bank. Many battery experts will stay to separate the single bank into 2 series banks and a battery switch but the one bank works for me.

Make sure you get deep cycle batteries, a starting battery does not work for more than a short time in this application. From my experience you will need about twice the rated amp-hrs that you calculate.

I run the same as Capt. Fred but I used street cleaner 6V batteries with a squeeze ball auto water system. They give me 440AH but are very hard on the back. I run a Xantrex 3K inverter and charger combo. I get 8-10 hours of power before the auto start gen set kicks in to recharge the house bank. I even run the small forward cabin AC unit with a soft start box on it. Don't ever have to run the genset when running the engines unless you need AC (air conditioning). The alternators keep the house bank topped off. I would be interested in knowing what other people are running for inverters and chargers.