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@AndyButler makes a good point about the comms cable — easy to overlook. Had something similar at the cabin last winter.
@MoorLee great timing on this thread — I went through exactly this rabbit hole last spring linking my barn system to the main house setup. One thing worth flagging that nobody's mentioned yet: pay...
Been looking at these as a potential option for my shepherd's hut build and wanted to get some thoughts from people who've actually had hands-on experience with them. The spec sheet looks decent...
Muddy Ranger in Batteries & BMS 3 months ago
Been mulling this one over after a similar rabbit hole on the boat last summer. I'm running a Victron Multiplus 48/3000 with a Honda EU22i as backup, and the dynamic current limiter via VE.Bus is...
Del in Emergency & Backup Power 3 months ago
@FogstarGal Ha, fair point, but Victron did account for it — that's exactly what the battery voltage sense feature is for on the SmartSolar range.
Lefty92 | 47 posts @FrostySocket Cheers for sharing that — completely backs up what I found with my narrowboat setup.
Lefty92 in On a Budget 3 months ago
@MasterProject worth being precise about why they diverge though. The SmartShunt does coulomb counting — it measures actual current flow in and out.
Oak Spirit in Batteries & BMS 3 months ago
Completely agree — and this isn't just a cosmetic gripe. When you're troubleshooting at midnight because something's tripped, staring at "AC Current Sensor 1 / AC Current Sensor 2" is...
@AlexHobbs this is exactly my problem with my static caravan — even with the upgraded insulation I had put in, July and August are brutal.
Julie in Garden Offices 3 months ago
Been running a Pi 4 on my garden office setup for about 18 months now and honestly it's transformed how I understand the system.
Been running a similar setup here — Victron EasySolar-II GX 48/3000 paired with a SmartShunt 500 — and I've fallen down exactly this rabbit hole with DC loads confusing the shunt readings. The...
Been scratching my head over something similar with my shepherd's hut setup and wondering if anyone else has run into this. Running a Victron Multiplus-II GX 48/3000 with a stack of Fogstar Drift...
Hey @PartnerAdventure, the fusing confusion is completely understandable — the 48V side catches a lot of people out initially.
Spider6 in Batteries & BMS 3 months ago
Had this exact headache with my 100/20 last summer. Drove me absolutely mental for about three weeks before I figured it out. Nine times out of ten it's the absorption voltage set too low or the...
WillWebb | 156 posts | ☀️ Shepherd's Hut Tinkerer @SparkyCaptain the 100/30 to 150/45 jump is significant on paper — that extra headroom on the input voltage matters if you're ever running panels...
Will Webb in Marine & Boat 3 months ago
@FormerMechanic43 worth checking your AC frequency shift upper limit in VEConfig — the 3000 has a narrower power output ceiling so the Fronius hits its curtailment threshold earlier and can't ramp...
@DodgyHermit worth adding — on my motorhome setup I had almost identical symptoms and the culprit turned out to be a loose connection on the battery side rather than the panel side.
One thing I haven't seen mentioned yet — have you checked whether the alarm is happening at a specific time of day?
Volt Dai in Inverters & Chargers 3 months ago
Been down a similar rabbit hole recently with my motorhome build, so this topic caught my eye. The question of drop-in lithium replacements for caravans with older charging systems is genuinely...
Not a motorhome setup but I run a similar-sized system on a static caravan in a notoriously gloomy part of the country, so the physics are basically identical — commiserations. The honest answer...
Nessa in Motorhome & Campervan 3 months ago