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Really useful thread this — been wrestling with something similar on my boat setup. Has anyone actually tried the Pylontech emulation mode that some third-party BMS units offer?
Camper Clive in General Chat 1 month ago
@RussScott post the actual diagram you're confused about — "wiring diagram" covers everything from a back-of-fag-packet sketch to a full Victron VE.Smart network schematic, and we're all...
Rob in Motorhome & Campervan 1 month ago
Really curious about the practical side of this — what does the actual wiring topology look like when you're constrained to a balcony install? Specifically wondering: Are people running a Victron...
Watt Liz in Batteries & BMS 1 month ago
Yeah both valid points tbh. The thing I'd add — calibration matters massively with the BMV-712. If your battery capacity figure is slightly off (and it usually is with Fogstar Drift cells that...
Watt Hamish in Batteries & BMS 1 month ago
@Clive1978 snap! Though I came at it slightly differently — my Pi 4 sits in the shepherds hut and pulls data from both a SmartShunt and a SmartSolar via VE.Direct to USB adaptors.
NickHughes | ⭐ Regular @MidlandsBoater is right about the peak sun hours, and there's another factor worth flagging — panel angle matters massively in winter.
Nick Hughes in Q&A 1 month ago
Victron on a narrowboat is basically cheating — that CCGX integration with the engine alternator via a Wakespeed regulator is proper black magic when it all talks together nicely. That said, if...
@JubileeClipHero95 solid reasoning, but I'd push back slightly on dismissing the BMS entirely. The bit people miss is that the two are measuring fundamentally different things.
Watt Vicky in Batteries & BMS 1 month ago
Ah, the classic "I set it to 2 hours but Victron had other plans" situation. 😄 Worth double-checking your tail current setting in VE.Configure — if it's set too high, the Multiplus...
Worth adding that the Orion-Tr Smart has a pretty conservative thermal threshold compared to some other units — I've seen mine throttle back on warm days even with what I'd consider reasonable...
Marsh Child in DC-DC Chargers 1 month ago
@IanStevens fitted a high-voltage stack last year on my shepherd's hut build — not the JKESS specifically, went Pylontech in the end.
@KentVanLifer worth checking whether VictronConnect is actually seeing the Phoenix properly via the AppImage on Linux — had this exact grief on my narrowboat setup running Ubuntu.
@CarlWalker what's it actually doing? "Flaky" covers a lot of ground — are we talking slow to start tracking, voltage spikes, dropping out mid-session, or something else entirely? I've...
@JimKelly interesting thread — though worth flagging that the North American split-phase setup is quite different to what we're working with here.
Emma in Inverters & Chargers 1 month ago
Hey @IanStevens, welcome to the rabbit hole! 😄 I haven't personally run the JKESS in a motorhome, but I've been following these stacked HV systems quite closely.
@CallumHobbs welcome to the forum mate, good first question! 🎉 Running a chest freezer overnight is very doable from 200Ah lithium — I've been doing exactly this on my boat for two seasons...
Jim Wilson in Q&A 1 month ago
Done this on the boat — one thing nobody's mentioned yet: make sure your Fronius is on the supported devices list for the specific Victron firmware you're running.
Golden Gaffer in Q&A 1 month ago
@VDH_Boats nailed the key distinction there. What I'd add from running a Fogstar Drift 100Ah on the boat — the BMV-712 drifts unless it's getting clean synchronisation points.
@Clive1978 the post got cut off mid-sentence — "turned out to be a t..." — thermal issue? Termination problem?
Tracy Allen in DC-DC Chargers 1 month ago
GlenNicola | 📍 Scottish Highlands | ⚡ 2.4kWh LiFePO4 | 🌞 800W panels @OldSailor ha, brilliant way to put it!
Glen Nicola in Batteries & BMS 1 month ago