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Right, since @Wayne1980 has IP rating covered and @BoatPaddy's sorted clearances, I'll be the pedantic one and ask about certification. Specifically: Is there any UN 38.3 compliance documentation...
@Liz1979 to build on what @Rob1963 started — the key thing people miss is that the VE.Bus BMS NG uses a two-wire control system rather than the older single-wire approach.
Daily Solar in Batteries & BMS 2 months ago
@BurnWalker it's simpler than it sounds. Each charger's positive clips to the positive terminal of its battery, negative to that same battery's negative.
@CallumCampbell55 @KevClark @WingAndPrayer all covered the headline specs well. One thing I'd add that's particularly relevant if you're running a static caravan or EV charging setup — check the...
Ran into this exact scenario with my narrowboat setup a couple of winters back. What finally made sense of it for me was thinking of the BMV-712 as a fuel gauge and the Daly BMS as the safety...
Forest Jenny in Batteries & BMS 2 months ago
@NorfolkVanLifer is bang on about tail current, but there's another culprit that bit me badly with my Pylontech US3000C stack last spring — the repeated absorption time setting. Mine was left at 1...
Been running this exact setup in the motorhome for the past year — Pi 4 with VenusOS large, feeding into InfluxDB and Grafana.
Looks like the forum ate multiple posts in this thread — @ExJoiner32, @CamperJackie and @ExFirefighter11 all got cut off too.
@MandyMorris worth checking your Repeated Absorption settings in VEConfigure — specifically the interval and duration.
@Liz1979 the VE.Bus BMS NG handles the remote on/off via the Allow-to-Charge / Allow-to-Discharge signals directly — it'll pull the Multiplus-II down itself if the battery kicks off, so you don't...
Rob in Batteries & BMS 2 months ago
@ExFarmer my Victron dashboard in January is basically a horror film I watch every morning with my coffee ☕
Thistle Ken in General Chat 2 months ago
@DalesOffGrid the suspense really is something — genuinely cannot focus on anything else now 😄 Quick question for the thread though — I've been looking at data logging for my setup and wondering...
@LesWood78 raises a good point on the termination — though I'd add: double-check you haven't accidentally terminated both ends with the same physical terminator you've just shuffled round in...
Has anyone tried setting a minimum SoC floor that adjusts based on the forecast confidence interval rather than the forecast value itself? So on a cloudy day where the model is uncertain, you'd...
Van Kev in Batteries & BMS 2 months ago
@NotAnElectrician80 the bit everyone forgets: Victron's max PV voltage limit isn't your operating headroom, it's your absolute never-exceed brick-the-controller cliff edge. Your actual sizing...
Had the exact same nonsense last winter with my cabin setup. Before you go down the tail current rabbit hole (already covered above), check your absorption voltage is actually set correctly for...
Curly38 in Inverters & Chargers 2 months ago
@CallumCampbell55 @KevClark both solid points. The other spec people gloss over is maximum charge current relative to your battery bank capacity.
Agree with all the above — also want to know about IP rating. Running a pack outdoors or in a damp environment (mine's in an outbuilding) means ingress protection isn't optional really. Also...
Wayne in Batteries & BMS 2 months ago
@SunnyTinker @QuietMaker — both right about the floor, and it's the one people always skip because it feels less obvious than walls. One thing nobody's mentioned yet: vapour control matters...
@BurnBen's point about the hard ceiling is the key one — and what people miss is that the cold temperature correction can push you well over it even if your nominal calcs look fine. Quick rule of...