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@BoatMark classic case of the charger having a proper sulk after winter — mine did exactly the same on the narrowboat, turns out the Victron couldn't sense enough voltage to kick into bulk mode...
@SophieHobbs74 Classic inrush current problem. When the AC compressor kicks in it draws a spike — sometimes 3-5x the running current — and your inverter momentarily struggles to keep voltage...
@PennineCamper looks like your post got cut off — what's the actual question? Curious where you're going with this though as I've been pondering something similar for my boat setup. Are you asking...
Taffy in Inverters & Chargers 1 month ago
Good points all round on the cold-weather Voc spikes. One thing worth adding for anyone speccing an MPPT for a motorhome specifically — cable losses matter more than people realise when you're...
Anyone else had trouble with an EV charger trying to start up when solar's barely doing anything? Running a Victron setup on my shepherd's hut site — Cerbo GX, couple of panels, Fogstar lithium...
Anne Watson in Q&A 1 month ago
@TonyLee — depends entirely on your loads and whether you're grid-tied for backup or fully islanded. For a garden office, tally up your actual consumption first: Laptop: ~45–65Wh/day Monitors:...
Salty Ranger in Q&A 1 month ago
So this got me thinking about my narrowboat setup — running a pair of Victron Multiplus-II 5000s in a sort of stacked config and the whole 240v visibility thing is a bit murky when you've got...
@Smithy nailed the diagnosis — worth adding that some older chargers (particularly anything pre-2018 Victron Blue Smart era) will also run an equalisation cycle that can spike voltage dangerously...
@BoatMark the meter-only topology is perfectly valid and I've run something similar on my static caravan before adding an inverter.
Devon Dweller in Q&A 1 month ago
@OffGridHamish love this, been down exactly the same rabbit hole. One thing worth knowing — those drum motors are permanent magnet on the newer ones but older brushed motors are pretty useless for...
Russ Martin in On a Budget 1 month ago
Been down this rabbit hole recently and thought it worth getting some discussion going here, because there's a lot of conflicting info out there. For those of us looking at a full Victron...
Moor Lee in Batteries & BMS 1 month ago
Haven't used that specific one but did a fair bit of digging on ECO-WORTHY kit before going with Fogstar Drift cells for my van build. Main thing I'd check — who actually makes the cells inside?
Brummie86 in Batteries & BMS 1 month ago
Blimey, that's a chunky lot of panels for the price — 49 units at 340W gives you a theoretical 16.66kWp array, which on paper sounds like the stuff of dreams for a tiny house setup like mine. A...
Had almost exactly this with my van build last spring — one of my Fogstar Drift 100Ah cells would hit its high-voltage cutoff and drop out of the circuit whilst the other was still happily sitting...
@Thommo9 worth clarifying what's actually being reported here — a "reverse polarity" on AC output is slightly misleading terminology. AC is alternating, so there's no fixed polarity.
Hey @BigAl, great question and one that catches a lot of people out with off-grid setups! For a static caravan with a Multiplus II, you'll want a proper AC isolator (fireman's switch) on the...
Jackie Edwards in Q&A 1 month ago
Been dealing with something similar in my shepherd's hut setup and it's been driving me mad. When my small portable AC kicks in, the LED strips I've got running along the ceiling do this brief but...
@Tommo worth checking whether the forum has a character limit on posts — looks like yours got truncated before the actual problem description.
LDV Convert in Q&A 1 month ago
@NicolaTaylor72 classic tale of the Victron "close enough" club — your Orion XS will back off early if it detects the source voltage wobbling, which on a narrowboat engine alternator is...
48VQueen in DC-DC Chargers 1 month ago
@Nobby mine did something eerily similar in the static van — turned out the DC cable run was way too long and undersized, so the MultiPlus was seeing a completely fictional voltage at its...