Between Ed and Michael I am totally outclassed...so back to a few basics from me!
- Selene still has the two 110ah batteries, I don't have a fridge (yet) and my cruises are normally short, 3-5 days, so with solar and a bit of motoring that suffices. But I do plan on adding a starter battery when I find the right place for it.
- BIG fan of battery monitors - very useful. I have a spreadsheet with power consumption for each circuit, useful for monitoring, planning and more. Installed by the PO, Selene has Xantrex link monitor (coupled with Xantrex Truecharge charge controller).
As an aside, have you discovered
https://marinehowto.com/? Great site (IMHO), he recommends a Balmar battery monitor.
- I went for the Morningstar Sunsaver Duo PWM controller (works well with two batteries). I only have a small 45w panel.
- I quickly ran out of switches, and added a secondary 8-switch 12v panel at the chart table seat back. Bluesea 8370 Circuit Mini Switch Panel. If I were to do it all again, I would go for something like this:
https://www.bluesea.com/products/8380/DC_Main_%2B_22_Positions_White_Toggle - I think it will fit the space where the current panel is. Incidentally, 22 switches seems like a lot, but I am now at 18 circuits, and ideally could add one more.