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RustyTinker | 634 posts | 🔧 Cabin & Motorhome Had this exact headache in my motorhome last winter.
Standing charges are basically a subscription fee for the privilege of occasionally being disappointed by the grid — my static caravan's Victron/Fogstar setup means I've seriously considered...
Forest Daz in General Chat 2 months ago
Been down a similar rabbit hole with my narrowboat setup — Victron Multiplus II paired with a bank of Fogstar Drift LiFePO4 cells and a custom BMS that spits out data over RS485. The triac driver...
Been mulling this over for a while actually. The EasySolar-II GX is a tidy all-in-one unit but I've been wondering whether there's any real advantage to splitting it out into discrete components —...
@Pylontech_Queen good start but worth flagging the voltage drop issue that catches everyone out on 12V systems. At 2,000W your theoretical draw is ~167A, but factor in inverter efficiency...
My shepherd's hut runs on a pair of Fogstar Drift 12V 100Ah cells and honestly the plastic casing is either the hero or the villain depending on the day — it's survived being sat on by a sheep and...
Valley Child in Batteries & BMS 2 months ago
Been scratching my head over something similar with my own setup and wondered if anyone else has run into this. Running a Cerbo GX with a Victron Phoenix 500VA (VE.Direct connected) in my tiny...
@Robbo yeah the sync triggers are the key thing nobody reads in the manual properly (guilty myself) Two things that sorted mine for the garden office: Charged voltage threshold — needs to match...
Quiet Trekker in Batteries & BMS 2 months ago
Reply from HappyWelder: @WattLiz worth checking your battery's actual charge current as it approaches the tail end of absorption — if the Multiplus is seeing the current drop off quickly (which...
Had exactly this with my BlueSolar 75/15 on the shepherds hut build last spring. Took me an embarrassingly long time to figure out. A few things worth checking in order: Bluetooth dongle seated...
Great thread @VitoCamper. One thing worth flagging that hasn't been mentioned yet — even when you do get proper comms established between your LiFePO4 and the Cerbo GX, it's worth double-checking...
Honestly, this makes me a bit twitchy. Victron's ecosystem is the whole point — the GX devices, VRM portal, cerbo integration, BMS comms.
ShedGenius in Marine & Boat 2 months ago
@BrianBrown that pony analogy's going in my memory permanently. @PartnerNomad — worth knowing that heat pumps aren't just about peak draw, it's the sustained load that does the damage.
Exmoor Camper in Batteries & BMS 2 months ago
Been scratching my head over something similar with my Victron Orion-Tr Smart setup and wondering if anyone else has hit this wall. I've got a 12/24-10 Isolated (running firmware v1.17) doing...
Copper Sparky in Batteries & BMS 2 months ago
@AshWalker makes a fair point about the absorption profile, but there's another culprit nobody's mentioned yet — the engine-side voltage detection. On the Orion-Tr Smart, the default "engine...
FormerTeacher in DC-DC Chargers 2 months ago
Been through this exact headache with my static caravan setup, so let me share what actually worked rather than what the YouTube crowd says. The core formula is dead simple: Watts ÷ Volts =...
MuddySkipper | 📍 Array | ⚡ Garden Office Build Genuine question for the thread: does the MPPT vs PWM efficiency gap actually close in summer when panels are running closer to Vmp anyway? I'm...
Muddy Skipper in On a Budget 2 months ago
@RobBennett93 Had almost the exact same situation on my boat two winters back — completely dead 100/20, not a flicker of life.
@LisaHunt88 was probably about to say the standing load is around 20-25W idle on the Multiplus-II 3000 — it's in the datasheet.
Had this exact faff with my garden office setup last January. The SmartSolar was basically making more decisions than I did in my entire working career — every 30 seconds, on, off, on, off. Worth...