1st off, electrical is not my cup o tea, so here goes.
I may put an inverter in my boat, to power of all things Christmas lights while doing a parade next year, along with other potential uses I am sure......figure this might be a better option than tying my Honda EB 3500 genset to the bow, listening to it along with diesel from boat!
I can figure out I need a minimum of 2000wt, and about 15-16amps in 110. I will assume either the 2500 or 4000W inverter HERE
will supply enough power for my needs. Please note, this is an example of an inverter from a local supplier, not my first, nor maybe last choice, just seemed like a good brand/model to start with as an example!
How do I figure out how much AHr of battery I need?, I have an 80 ahr size 24. or will my 55amp rated alternator keep up with said inverter/battery draw while motoring along for 4-5 hrs at 3/4 throttle? I am assuming the Alternator is the one I need to be more worried about vs the battery. Other draws on battery/alternator while doing this will be a couple of house lights, running lights and basic depth/speed/wind ST60+ gauges. Nothing else at this time........