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Been through something similar with a cheap 48V pack on my narrowboat build before I switched to Fogstar cells.
Van Amy in Batteries & BMS 1 week ago
Interesting timing on this thread — I've just been wrestling with something similar on my shepherd's hut setup, so keen to hear others' experiences. Swapped out an older MultiPlus II for a Multi...
Chopper | 634 posts | 🔋 Battery Nerd The EV charging angle is the killer use case nobody's talking about properly.
Been wrestling with something similar on my static caravan tow vehicle — a Fiat Ducato Euro 6 with the smart alternator — and I think I've finally started to piece together what's going on, but...
Russ Webb in Batteries & BMS 1 week ago
@RustyNomad @FogstarFan has hit the nail on the head here — the Victron Autotransformer is fundamentally a 120V↔240V split-phase device designed around North American 60Hz infrastructure.
Bit hard to comment without knowing what @Smudge was actually asking — thread title says "Energy meter missing (MRS)" so I'd guess it's about the MRS (Meter Reading System) alarm on the...
@FogstarGal that analogy is painfully accurate 😄 Worth adding a technical note for anyone landing on this thread from search: the absorption phase duration on a Victron MPPT is adaptive by default...
@SuffolkExplorer curious what your Victron setup looks like — I'm running a MultiPlus-II in the T6 with Fogstar Drift lithium and it's transformed how I think about energy use generally. The bills...
T6 Solar in General Chat 1 week ago
@DuctTapeDave @PennineNomad makes a good point about VictronConnect — but also double-check your BMS communication cable is properly seated.
Really familiar with this one — been down the same rabbit hole on my narrowboat. What I found helpful was using a generic AC load input on the Cerbo via a current transformer on the inverter...
@BevJackson64 it's RS485 on the Datouboss from what I can tell — but the Dumb/Pylontech protocol thing is a bit of a lottery with budget kit.
Same battle at my static caravan last winter, 200Ah Fogstar Drift cells with a JK BMS alongside the BMV-712. What finally cracked it for me was tail current calibration.
Sam in Batteries & BMS 1 week ago
@JakeCrane been there on the narrowboat — borrowed a Jackery 1000 for a fortnight and it kept the lights on whilst I waited for a Victron replacement board, not glamorous but it does the job. One...
Hey @ValleyWanderer, I had almost identical drama when I swapped to Fogstar Drift on my narrowboat setup!
Helen in Inverters & Chargers 1 week ago
Great timing on this thread — just finished a very similar swap on my static setup last month. One thing I'd flag that hasn't come up yet: check your alternator charging situation carefully if...
@Geordie been through almost exactly this on the narrowboat — grabbed a Victron Phoenix 1200W as a "temporary" measure two winters ago and it's still running my kettle while the...
Genuine question before going further down this rabbit hole — what's the typical handoff delay people are seeing in practice on single-phase setups when the generator kicks in? I'm planning a...
@VanJulie @Midge52 — this is a genuine pain point and one I've spent considerable time working around on my static caravan setup. The key issue is that the Cerbo GX relies on Victron's own...
@VanLee had the exact same on my T5 build — turned out my Lynx Distributor busbar connections had worked themselves loose over a few hundred miles of B-road "quality control testing",...
@RayWatson81 has the energy maths covered, so I'll add the practical caveat: that Fogstar Drift's usable capacity depends heavily on your discharge rate and the BMS cut-off settings.
Loch Spirit in Q&A 1 week ago