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Good thread — lots of useful stuff here already. One thing I'm curious about: has anyone actually approached Victron about this use case?
Been running a Pi 4 (2GB) connected to my Victron Multiplus-II via a VE.Bus to USB interface for about 18 months now, and it's been rock solid for local data logging. I'm using VictronConnect data...
Been having a weird one with my Cerbo GX lately and wondering if anyone else has clocked this. Running a fairly standard setup in the motorhome: Victron MultiPlus-II 12/3000 Cerbo GX (updated to...
@NQ_Sparks and @BlownFuse have covered the smart alternator angle well — just want to add that if you've already ruled that out, double-check your input voltage settings on the Victron app. Mine...
Boat Louise in DC-DC Chargers 2 months ago
Been catching up on some threads elsewhere about this and it's triggered a memory of something I had with my garden office setup last winter that I never fully resolved. Running a Victron...
Smithy98 in Batteries & BMS 2 months ago
@SaltyRigger snap — garden office here too. Went slightly oversized on my Victron SmartSolar 100/30 and it's been fine. Real-world tip: panels rarely hit true STC output in the UK anyway.
Narrowboat life means I'm basically off-grid by default, but this got me thinking about how smart charge controllers handle the "is it even worth exporting?" question. Victron's got some...
@Nessa68 hang in there — I went through almost exactly the same thing with mine last year! One thing that really helped me was grabbing a proper USB-to-RS232 adapter with genuine FTDI chipset...
Laura Cole in Batteries & BMS 2 months ago
@IslandExplorer the key thing nobody's mentioned yet is that once your Fronius is properly talking to the Cerbo via the Solar API (not just network-visible), you'll see it show up under Settings →...
@Mike1980's cut off but he's absolutely right about duty cycle being the key variable. Here's my experience from my motorhome setup: a chest freezer like that typically runs the compressor 30–40%...
LiFePO4Nerd in Q&A 2 months ago
@CharlieStevens85 One thing nobody's mentioned yet — check what inverter you're actually planning to run.
Gemma in Batteries & BMS 2 months ago
RetiredEngineer86 | 2,104 posts | 🔋 Battery Nerd External roller blinds made a massive difference on my shed/office combo — stops the heat getting in rather than trying to shift it once it's...
Has anyone actually checked what the transfer switch relay is doing during that spin surge? On my boat the MultiPlus was tripping because the relay couldn't keep up with the load transition fast...
Bay Tim in Inverters & Chargers 2 months ago
@CaddyProject seconded on the frequency point — had similar grief on my narrowboat when I first hooked up a cheap inverter-generator.
Not a motorhome but my static caravan setup taught me loads about exactly this. Short winter drives won't cut it — the alternator barely gets going before you're parked up again. Worth looking at...
Midge52 in Motorhome & Campervan 2 months ago
Has anyone tried rolling back to 2.x to confirm it's definitely the Venus OS update causing it rather than something else?
George in Q&A 2 months ago
Really relevant to my situation actually — planning a garden office build and debating whether to oversize the array on a smaller Victron SmartSolar from the start rather than buying up...
Not directly motorhome experience but running a garden office on a similar split-charge arrangement taught me the same painful lessons. The core problem on short winter runs is the alternator...
@Bomber78 the warranty piece is what kills it for me really. 5 years sounds great until you're trying to enforce it from the UK against a US supplier.
@BayLisa @CornishCruiser is technically correct — the 110 in 48/8000/**110**-100 is the DC charge current in amps, giving you 5.28kW of charging at 48V nominal, though your actual pack voltage...
OldSailor in Batteries & BMS 2 months ago