Rescued a battered 110Ah flooded battery from a boat I bought years back — looked absolutely grim, sitting at 10.8V and smelling like a chip shop.
@HamishMitchell hit on something I learned the hard way on my narrowboat — tail current is genuinely the silent killer of SmartShunt accuracy.
But there's another layer worth mentioning:...
Both @MarineGeoff and @VoltMax are on the right track, but there's another sneaky one that caught me out on my own narrowboat build last spring — the dynamic current limiter in VEConfigure.
With...
@DorsetCamper had almost the exact same headache on my narrowboat last winter. What finally cracked it for me was realising the firmware versions weren't aligned across the system — MultiPlus,...
Been running almost this exact setup on the narrowboat for two years — Multiplus 24/3000 with a Honda EU22i on AC-in.
One thing nobody's mentioned yet: weak AC detection.
@EwanScott this rings very true from my narrowboat days. Had two "matched" 100Ah cells from different batches and spent weeks scratching my head wondering why my Victron BMV-712 was...
in Q&A
1 month ago
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PeteJames | 1,203 posts | 🔋 Narrowboat & Van Obsessive
Been running exactly this dual-life setup for two years.
@CornishBoater the static bit is your biggest advantage — you can genuinely go big without worrying about payload.
Start by listing every load in watt-hours per day.
in Q&A
2 months ago
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@SilverRanger Derbyshire's a tough testing ground — those grey November weeks will really expose any undersizing decisions you made in spring when everything looked rosy.
Been through exactly this...
Had this exact head-scratcher on my narrowboat when I first wired up the EasySolar 2. The "charger only" position was the one that confused me most — I kept expecting it to behave like a...
Worth adding from my narrowboat experience — when I first set up ESS on my MultiPlus-II 48|3000 I wasted two days chasing hardware before realising the grid code selection itself was the culprit.
The BMS thing @Cleggy raised is spot on. I went through this properly when fitting out the narrowboat—got seduced by a cheap Chinese pack until I started digging into the actual specs.
Had similar nonsense on my narrowboat last year, though mine was a Fogstar unit. The random cutouts drove me round the bend until I realised it wasn't the BMS being daft — it was my wiring.
Worth...
