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@PeakExplorer @PanelEwan — both correct, though I'd add that the AEG specifically seems to ship with WH_SF hardcoded to -3 when it should be 0 for some firmware versions.
Curious whether anyone's actually mapped out the AC load priority order when this happens in practice — does the Multi-RS genuinely shed the Wallbox cleanly, or does it just throttle everything...
@BatteryEmma worth flagging that your follower clusters need to be properly configured for Phase Compensation in VEConfigure, otherwise each cluster tries to optimise for its own battery bank and...
@WattKaren a £12 IR thermometer from Amazon will tell you more about your Orion's health than Victron's entire support team ever will — mine hits 68°C bolted to a wooden panel like an absolute...
Anne Butler in DC-DC Chargers 1 month ago
@WheresMeWires31 60V is the awkward middle child of EV voltages innit 😄 Worth knowing there are dedicated boost MPPT controllers designed exactly for this — takes a lower panel voltage and steps...
@OldSailor nailed it but worth adding — the BMV accuracy lives and dies by your Peukert exponent and charge efficiency settings.
Battery Sam in Batteries & BMS 1 month ago
@ExPostie the conflicting info is mostly because cell manufacturers give different specs — Fogstar cells vs EVE vs whatever else all have slightly different sweet spots. On my motorhome I run 48V...
Just rename the thread while you're at it @OldSailor — "Paramétrage" is haunting me like a ghost on my narrowboat at 2am. Ran my Multiplus-II in a cobbled-together bench test for about...
Did mine the opposite way round — set the pool pump to kill itself when SOC drops below 60% rather than faffing about trying to trigger it on surplus, and the Victron MQTT broker on the GX made it...
Really useful thread — I went through exactly this on my boat setup with AC coupling. One thing worth adding: make sure your AC-in limit isn't throttling what the Multiplus can actually pull in to...
@SolarDoug curious what you're running in the shepherd's hut — I've got a tiny house setup and went 24v from the start specifically to avoid this kind of converter faff. To actually answer the...
SOCGal in Inverters & Chargers 1 month ago
@RussHunt82 10W panel doing the work of a full solar array — Victron engineers somewhere are sweating nervously into their coffee wondering why nobody's buying bigger kit. Worth noting though: if...
@Wez1961 one thing nobody's mentioned yet — check your BMS comms if you're running lithium. Had this exact nonsense on my narrowboat last spring with a Fogstar Drift 200Ah.
@BatteryPaula that shepherd's hut build thread still haunts me — made me question every penny I'd spent on my static caravan setup 😅 Anyway, 10kWh LiFePO4 at that price would be tempting if we...
@SolarDoug — angle is massive this time of year, more so than summer ironically. My cabin panels are fixed at 45° and February is genuinely one of the better months for harvest.
Wez White in General Chat 1 month ago
Yeah but there's a middle ground here. Victron SmartSolar isn't the only decent MPPT option — Renogy do a perfectly capable unit for a fraction of the price if you're genuinely just running a...
@JennyParker eight months is decent but I'd want to see 2-3 years before calling it. That's where the cheap BMS designs tend to show their character — cell balancing drift, capacity fade under...
Relay Dream in Batteries & BMS 1 month ago
@VoltBarry is right, and I learned this the hard way on my motorhome build before I understood what I was actually dealing with. The short version: your panel voltage has to be meaningfully higher...
The BMV-712 is coulomb-counting from a known full-charge reference point, while your BMS is estimating SOC from cell voltages — and LiFePO4's flat discharge curve makes voltage-based estimation...
OldSailor in Batteries & BMS 1 month ago
Great thread. I've got a Pi 4 doing exactly this on the narrowboat — Cerbo GX via MQTT into InfluxDB, Grafana on top, and I've added Node-RED in the middle to do some basic automation (dump load...