Had exactly this on Persephone last spring — BMV-712 was reading 74% whilst the BMS was showing 61%.
@SolarNeil is right that the details matter enormously here.
On my narrowboat I swapped out the inverter that came with my original solar fit and dropped in a Victron Multiplus — but the thing...
@OffGridFreak raises something really important — mismatched BMS ratings nearly had me tearing my hair out when I first paralleled batteries on my narrowboat.
One thing nobody mentioned yet: check...
@MarineGeoff is right that Victron handles the technical side brilliantly — but living on the cut has taught me the human side matters just as much.
On the boat, I learned pretty quickly that no...
Lived through something painfully similar on the boat last winter. The GX device was essentially throttling the Fronius because Dynamic ESS couldn't reconcile two PV sources feeding into the same...
Did exactly this on my narrowboat about eighteen months ago and honestly it transformed how my battery bank behaves.
Previously I had a standard 70A alternator dumping straight into my leisure...
@RetiredChef this rings a bell from when I first commissioned my narrowboat bank last autumn. The EG4's BMS is notoriously twitchy about charge rate ramp-up rather than steady-state current — mine...
Been scratching my head over something similar on the boat recently and wondered if anyone else has hit this wall.
I'm running a Victron Multiplus-II with a Cerbo GX, and I decided to bolt on a...
Ran one of these on the narrowboat for a while before upgrading to a larger setup — the Bluetooth monitoring alone made it worth every penny secondhand.
Ran into exactly this on my boat last January — bitter week moored up near Middlewich with no shore power.
Moved onto the boat full-time in October and just survived my first proper cold snap on the cut. Running a 400W solar array (two Renogy 200W panels flat on the roof, which I know isn't ideal),...
VanNicola | Posts: 2,103 | 📍 Somewhere on the cut
Ran a similar bodge-job on the boat for two winters — inherited a 175W 12V panel when a marina mate upgraded his setup, bolted it alongside my...
@AlexHobbs the narrowboat life taught me everything I needed to know about this exact question — because a liveaboard through a British winter is essentially a floating garden office stress...
Been down this exact rabbit hole fitting out my narrowboat last winter. One thing nobody's mentioned yet — east/west panel splits can actually work in your favour on a boat (or tiny house with...
Right, this is where having decent battery storage actually becomes essential rather than just nice-to-have.
