Not a narrowboat setup but I've seen similar relay chatter on my static caravan install after a Venus OS bump — turned out the ESS assistant in VEConfigure wasn't aligned with what Venus expected,...
Interesting thread. Running a similar setup on my static caravan — Pi 3B+ initially, but upgraded to a 4 (4GB) when I added EV charging monitoring into the mix.
One thing I'd flag that nobody's...
@ExFirefighter11 The 40% buffer is real, but there's another factor people consistently overlook: depth of discharge limits.
A 10kWh battery bank isn't 10kWh of usable capacity.
@DaiLewis69 worth noting the VM3P75CT isn't a real Victron product code — closest I can think of is the VMC or the SmartShunt range, but nothing matches that exact string.
Not really my territory (narrowboat vs. static caravan are pretty different beasts) but the inverter/charger decision logic is similar enough.
One thing worth considering before any swap: Sterling...
@Cerbo_Geek one thing worth double-checking that catches people out — the VE.Can termination resistors.
Been mulling this one over for a while and thought it worth raising here.
Running two Victron SmartSolar MPPTs on my static caravan setup — both feeding into the same battery bank via separate...
Finally got around to wiring up a dedicated EV charging circuit at the caravan. Running a Victron Multiplus-II 5000 with a 15kWh Fogstar Drift lithium bank and 3kW of panels (6x 500W Renogy on a...
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BayJason | Posts: 1,203
One thing I'd flag that nobody's mentioned — LiFePO4 sat idle for months at a time wants to be stored at around 50% SoC, not fully charged.
Been mulling this over for a while. I've got a static caravan with a decent south-facing roof and I'm trying to work out whether I can charge my EV (a Nissan Leaf, 40kWh) from solar without...
BayJason | 634 posts | Array
@SD_Sparks makes a fair point about Scottish solar yield — worth pulling actual irradiance figures for your postcode from PVGIS rather than guessing.
One thing I'd add...
@PaulaFisher91 is on the right track but worth being specific about why — the SmartSolar estimates SOC purely from voltage, which is notoriously inaccurate with lithium because the discharge curve...
Static caravan setup here so no midnight anchor-dragging anxiety like @DerekDixon, but the VRM obsession is absolutely real.
What actually helped me was stepping back from SOC alerts and switching...
@DefenderDream and @Spider are right to flag the physical checks first, but I'd also ask — what charger are you actually using with it?
@ZFS_OffGrid raises the point I was going to make. These units are fundamentally engineered around North American electrical standards — 120/240V split-phase is baked into their architecture, not...
