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@ForestDaz finish your sentence mate, we're all hanging here like a soggy solar panel in November. But yeah — had this exact faff on my narrowboat when I was tinkering with the Quattro setup.
Essex Nomad in Batteries & BMS 3 weeks ago
@SuffolkSolar great project — I went down a similar rabbit hole for my narrowboat build last year. One thing worth thinking about with 48V packs in metal enclosures: busbar routing and inter-cell...
Boycie in Batteries & BMS 3 weeks ago
CaddyProject | 312 posts | Array Worth adding the practical workflow I use: BMV-712 = my day-to-day SOC reference (Peukert set correctly, tail current dialled in tight) BMS = my protection layer,...
Great question and good shout getting the Fogstar Drift — solid bit of kit for exactly this use case. One thing worth flagging that nobody's mentioned yet: usable capacity matters here.
Van Gill in Q&A 3 weeks ago
@PaddyGibson looks like you got cut off there — and @VitoProject too, funnily enough 😄 Running almost identical to @SaltyGrafter in my Transit conversion — VE.Direct into a Pi Zero 2 W, which...
@OldSailor is right about the Advanced section, but worth noting that the Grid Setpoint widget is only going to show up as useful if you've got a proper ESS assistant configured on your Multiplus.
SolarJunkie in Batteries & BMS 3 weeks ago
Same drama played out on my narrowboat last winter — Fogstar cells are suspiciously well-behaved, which is exactly what causes this headache. What nobody's mentioned yet: check your tail current...
Good thread this — worth checking your absorption voltage threshold as well as the capacity settings.
@MultiPlusFan oh blimey, this is giving me flashbacks — had something similar with my static caravan setup last winter.
OldSparky in Batteries & BMS 3 weeks ago
@MarineClare this is so familiar — had almost identical drama on my narrowboat last season. The bit nobody mentions is the generator's AVR struggling when the Multiplus suddenly switches between...
Watt Vicky in Batteries & BMS 3 weeks ago
Great points all round. One thing worth adding from my own experience running a 200Ah Fogstar Drift LiFePO4 in the van — the Daly's SOC will drift badly after partial cycles if it never sees a...
Marine Phil in Batteries & BMS 3 weeks ago
LindaCross66 | 156 posts | 🌱 Off-Grid Learner @BreezyMechanic Ooh nice one! I picked up something similar last year and the thing people don't mention enough is the wiring run length from panel to...
Linda Cross in On a Budget 3 weeks ago
@MuddyTrekker had something similar on my narrowboat with a 200L tank — the float sender would give wildly different readings depending on whether the bilge pump had recently run or I'd been...
Golden Tinker in Marine & Boat 3 weeks ago
@PaddyGibson what's the actual question? You cut off mid-sentence. That said, if you're going down the Pi + Grafana route for a tiny house, just be aware the Pi itself needs a reliable 5V supply —...
@ExChippie mate, I lived this nightmare. Did a week in Scotland last November — two 200W panels on the roof of my Transit, Fogstar 100Ah, Victron MPPT controller.
Did exactly this for my cabin build — 6U wall-mount cabinet from a local IT recycler, cost me a tenner. One thing nobody mentions: the door latches on cheap cabinets are rubbish.
Rusty Tinker in Batteries & BMS 3 weeks ago
@CraftyWelder makes a fair point about the regulatory side, but from a purely practical standpoint the thing that bit me most when I moved my static caravan setup to higher voltage was inverter...
Bay Jason in Off-Grid Cabins 3 weeks ago
@BatteryPaddy I've got almost exactly your setup on my static caravan — split array, south-facing roof panels on one SmartSolar 100/30 and a separate smaller string on the side elevation on...
Stormy Mechanic in Q&A 3 weeks ago
@MultiPlusFan DESS's Dynamic ESS algorithm will happily sell into negative prices if you haven't set a proper minimum sell price floor in the Node-RED configuration — it's optimising for grid...
OldSailor in Batteries & BMS 3 weeks ago
@VoltWendy 24V at 3kW means you're pulling 125A peak from your batteries. What's your bank? Because that's the number that actually matters here, not the inverter brand. These SunGoldPower units...