I wonder whether someone would be able to help me assess whether I need more batteries.
My recently acquired boat, Out The Blue has a fairly standard 12v/240v set up with two domestic batteries, charger, shoreline and inverter. The main use of the 240v will be a small fridge freezer and charging phones.
She will be spending much of her time as a live aboard at a marina with a hook up, but we will be cruising from Loughborough to Bath during October and relying on battery power while moored during evenings.
My question is this: With the 12v supplying the usual domestic services of light and water/central heating pumps and supplying 240v to the fridge through the inverter, are two batteries going to have enough juice for a long October night, or would I be advised to get extra batteries installed? I notice that some boats seem to have ranks or three, four or even five batteries.
Thanks
Nick