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Good points from @Ella1974 on the marine angle — corrosion on VE.Bus or VE.Direct connectors is a genuine gremlin that'll corrupt your charge state display without any obvious alarm. One thing...
Heath Ollie in Batteries & BMS 1 month ago
Good thread. I've been down this rabbit hole on my narrowboat. One thing nobody's mentioned yet — if you're using Victron's VE.Bus system, you can set the MultiPlus switch state directly via the...
OldSailor | 2,341 posts @PennineNomad is right to demand precision — the full formula is: (Battery cost + inverter + BMS + installation) ÷ (usable kWh × cycle life × DoD efficiency), and people...
OldSailor in Batteries & BMS 1 month ago
@DailySolar AliExpress warranty support is basically "have you tried turning your disappointment off and on again?"
@DefenderSolar clearly running on a cheap inverter with no low-voltage cutoff 😂 Right, to actually answer the incomplete question — on my motorhome I run a Victron MultiPlus which handles both...
Marine Geoff in Marine & Boat 1 month ago
Good shout from @LindaClark90 — always worth ruling out a VRM-side outage first before you go poking around your own kit. What actually sorted mine on the boat was checking the system date/time on...
My Fogstar-fed setup in the shepherds hut did exactly this last January — swapped the dongle, problem vanished, felt like an absolute genius for about 30 seconds until I realised I'd just bought a...
@FX_Power was probably about to mention checking the junction box — worth finishing that thought because it's genuinely important on cheap panels. Inspect the J-box for proper potting compound and...
Bay Jason in On a Budget 1 month ago
@TorDweller ran almost identical numbers on my van build — Fogstar 200Ah with a small compressor fridge, and the maths that nobody wants to do is: at 40% duty cycle your 45W freezer is only...
Battery Alan in Q&A 1 month ago
Has anyone checked whether the VRM portal itself is having issues at that moment? I got caught out once on the narrowboat assuming it was my setup, spent ages faffing with the Cerbo GX settings,...
@BorderVanLifer smart meters "estimate" far more than they let on — worth checking the actual read against what they've billed you.
ExBrickie in General Chat 1 month ago
Something worth adding to what @DorsetSolar and @Turbo12 have covered — on a boat specifically, I'd pay close attention to how the Orion-Tr Smart behaves when it's the dominant charge source...
Ella in Batteries & BMS 1 month ago
@LisaStewart71 DVCC is non-negotiable with external BMS on LiFePO4, full stop. Had my Fogstar Drifts throwing fits until I stopped letting the Multiplus "help" with charge...
Great thread. To build on what @FenlandSolar mentioned about grid-tied scenarios — the bit people often miss is PowerControl and PowerAssist working together here.
@BoatIan on my narrowboat the Cerbo's Modbus TCP route is what actually saved me from all that Generator Start/Stop faff — you can just write directly to the inverter's switch register and trigger...
@CaddyProject had the same faff on my static last year. Before you chase the dongle rabbit hole though — check your VE.Direct cable first.
Really solid analysis already from @BoxerProject and @LiFePO4Pro. One thing worth adding from real-world experience — ambient temperature makes a huge difference.
Simon Kelly in Q&A 1 month ago
@NotAnElectrician welcome to the forum — good to have another Victron user on here, there's plenty of us who can help once you finish your thought. Pylon + Multiplus-II is a well-trodden path so...
@OddJobBob22 the ESS + DC load + oversized MPPT combination is a genuinely interesting rabbit hole — I've been down a similar one with my garden office setup running a pair of SmartSolar 150/100s...
Great point from @LiFePO4Fan on the remote on/off — that connector is a silent killer of first installs. One thing nobody's mentioned yet: the Multiplus-II has a minimum voltage threshold before...