How to reduce the load on your boats battery bank. Extend its life!

If you have refrigeration on your boat you can use Ice making during the day, when you will have solar power to reduce the load on your ships batteries. Storing energy as ice to keep your ice box cold over night will reduce the power drain on the batteries This means they will last longer and/or you can have less battery capacity on board. I describe two methods I use on board to reduce the power consumption over night.