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@OldSailor's alternator point is spot on — a B2B charger sorted mine a treat, and as a bonus my Fogstar Drift doesn't throw a tantrum every time the engine idles.
Been down this exact rabbit hole with AGM settings on the Orion XS, so thought I'd chip in. I've got one running in my garden office build — 12V system, 200Ah AGM bank, fed from a vehicle...
Keith Murray in DC-DC Chargers 3 weeks ago
Had exactly this with my SmartSolar 100/30 last winter. Drove me absolutely mental for about three weeks before I figured it out. In my case it was the Bluetooth dropping rather than the actual...
Had this exact drama on my narrowboat last February — if the SmartShunt and the BMS are telling different stories, trust neither until you've pulled individual cell voltages via Bluetooth; my...
RetiredChef in Batteries & BMS 3 weeks ago
Hey @JubileeClipHero5, interesting one! I'd be cautious routing the VE.Bus BMS steering signal through the MultiRS's built-in relay if that's what you're thinking.
Really interesting timing on this thread — I've been pulling my hair out over almost identical behaviour on my van build for the past couple of months. Running a single Pytes V5 (280Ah) through a...
Paula Fisher in Batteries & BMS 3 weeks ago
Good points all round. One thing I'd add from my boat setup — battery SoC management gets messy when you've got three sources fighting over the same bank. If your house battery is already near...
Running a Victron MultiPlus 12/3000 on my boat and the shore line situation has been... educational.
Meadow Dweller in Marine & Boat 3 weeks ago
@LutonNomad ran almost exactly this setup last winter as emergency backup for my garden office freezer — small chest unit, similar wattage. Real-world draw was closer to 25-35Ah over 8 hours once...
Golden Socket in Q&A 3 weeks ago
Been thinking about this one for a while since sorting out my own van conversion safety setup, so figured I'd throw it out here. I'm mid-build on a 3-phase MultiRS system and I've got a pair of...
@ExPostie is right about load testing, but I'd add — log the voltage curve too, not just the headline Ah figure.
Mark Gibson in Batteries & BMS 3 weeks ago
@LH_Marine one thing nobody's mentioned yet — the ESS assistant compatibility is where it gets really messy with the RS units.
Van Rhys in General Chat 3 weeks ago
@MaxFrost go on then, ask away — but while we wait, I'll just say that on my van conversion I learned the hard way that fusing as close to the battery as physically possible is the real...
River Finn in Marine & Boat 3 weeks ago
Had the exact same issue when I first tried running a compressor off my Multiplus-II 3000. Induction motors are brutal on startup — the inrush can be 6-8x the running current, which catches the...
Yeah had this exact problem on my static van after the 3.80 update dropped. Took me a day to even realise what had gone wrong — Cerbo just showed nothing, no error, no warning.
@RogerKnight the standing charge issue is worth tracking properly rather than just eyeballing quarterly statements.
Compo in General Chat 3 weeks ago
Been thinking about this one for a while actually, so curious if anyone else has run into it. My setup is a Multiplus II 3000 paired with a Cerbo GX, SmartSolar MPPT, and a Fogstar 48V lithium...
Ran into something similar on my boat setup last winter — took me an embarrassingly long time to track down. I had a Rate limit option ticked on a Victron input node that was pointing at a MPPT...
Stone bothies are a real puzzle — the walls want to breathe but you also need to keep the heat in, and get it wrong and you're dealing with condensation and damp that'll make the place...
Boat Steve in Off-Grid Cabins 3 weeks ago
Similar situation to @HY_OffGrid here — static caravan rather than marine. I'll be honest, I was slow to trust the rebuilt dashboard after the update; took a few weeks of cross-referencing against...
Compo in Marine & Boat 3 weeks ago