RV8R
Solar Enthusiast
I do have phones and tablets I will eventually charge from this system.
LED lights are running from the lead battery system so I don’t worry about those.
Same with all the boat necessary equipment such as water pumps and gps/autopilot.
This system will run for extra stuffs and/or as a backup for the main system if ever it failed.
Should I go for a smaller inverter if I don’t expand much ? It is true that I most likely won’t have most those things Running at the same time except maybe the fridge + something else.
Nothing comes to mind as to what other appliances I would add in the future. Mostly I wanna be able to power the boat for few days 5-7 without having to go to shore.
Where I live it’s quite rare to have shore power in a marina as a guest.
As for the fan I’ve gotta check but that’s what I briefly read on the Amazon technical spec page. Most likely I won’t be using it much or mostly recharging its 18V battery ( with AV tho)
As far as going 24V, I already have the appliances and some are AC only so that isn’t realistic, either way I would need an inverter.
So far all I have got from Renogy is the MPPT charger.
Good Info;
Phones, tablets, & LED lights are all pretty light loads, but everything should be accounted for or we are just fooling ourselves.
There are many on the forum that for a boat will push you to Victron ,,, I tend to agree. Regardless you have the Renogy MPPT & still need to buy the other components after you complete your design.
I think you missed my point about the inverter;
I assume your fridge “can run on 12vdc”, & if you set it up for that instead of running the inverter 24 hours a day, you could leave it off as the other 120vac appliances ( loads ) were manually operated about 2 or 3 hours per day ( yet to be determined as your numbers are changing - this is why you perform a load calculation / energy audit ). This saves you guessing 400Wh in inverter standby energy.
Further, IF your fridge is 12vdc, then the inefficiency of going 12vdc battery - 120vac inverter - 12vdc compressor & controls makes no sense to me. Every time you transform the voltage you get energy loss & heat gain, which begs the question for what good reason would you do that ?
IMO it all comes down to “How are you gonna charge your batteries”? If you are looking for a DC2DC charger, I think Kisae is worth looking at.
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