Upgrades Needed Along with Larger Battery Bank?

[john61ct]

FLA is by far better value and last longer than AGM. High CAR is only when depleted and makes very little difference to overall charge time.

T-105s are great, RE version even better, Duracells sold at Sam's and Batteries+ cheaper $1/12V-aH and almost as good.

Doesn't take much ventilation opening to prevent hydrogen from building up.

[john61ct]

Designing a system without dedicated Starters is easily done and IMO a great idea,

but I'd only rely on those little jumpstarter powerpacks for belt and suspender 3rd level backup.

[john61ct]

I assume no generator on board?

Do you motor for hours every day independently of bank charging needs?

How many days at a time away from shore power?

No dino juice source will get a bank to the 100% Full it needs a few times per week for longevity.

Doesn't take much solar to remedy that, low amps can take care of the long tail after the high-amp early stages powered by fuel.

[john61ct]

I would recommend buying a good charger, properly sized, independently of the inverter.