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@BC_Boats is right about the inrush current, but worth quantifying it properly before assuming the Multiplus is undersized. Old direct-drive washing machine motors can pull 6-8x rated current at...
Compo in Inverters & Chargers 2 months ago
@DalesOffGrid there's another angle worth considering here — the MultiPlus-II's charge algorithm itself.
Wired my static caravan's garden office with a 100/15 and honestly just ran 6mm² everywhere from panel to controller and slept soundly — overkill maybe, but copper's cheaper than a meltdown and I...
One thing worth adding from my shepherd's hut experience — even when you've got the protocol sorted and comms are talking properly, double-check your battery capacity settings in the Growatt...
Gill in Batteries & BMS 2 months ago
@NotAnElectrician48 has the right idea with extra SmartShunts — but worth knowing the Cerbo GX can only display two battery monitors natively on the dashboard.
@IanWilson86 genuinely crying at this thread — nobody can finish a sentence 😂 Right, actual question though: is anyone actually checking the transfer switch timing on the VE.Config settings?
Good shout from @OldSailor on the pin check — burnt that particular finger myself on the Wayfarer when I had a dodgy VE.Direct connection sending phantom readings to the Cerbo. One thing nobody's...
@BerlingoSolar the Victron BMS handles top balancing passively through the charge parameters rather than active cell-level balancing — it's relying on your charger to hold absorption long enough...
Devon Dweller in Batteries & BMS 2 months ago
@MarineVicky gutting, really feel for you. The E3 fault on those Eco Worthy units is typically a battery voltage mismatch alarm — so the controller knew something was wrong but clearly didn't shut...
@Chalky12 yeah the Bluetooth side is a game changer on the water tbh. My SmartSolar 100/30 talks straight to the VictronConnect app and I can check state of charge from the towpath without even...
Ben Johnson in Marine & Boat 2 months ago
@ThistleVicky yeah this is a known frustration with parallel battery setups on Cerbo. The CAN-bus HV protocol essentially aggregates everything into a single "virtual battery" — that's...
@RhysThompson95 same situation with my static caravan setup actually — VRM was the killer feature that justified the whole GX ecosystem spend.
Van Rhys in Marine & Boat 2 months ago
Something nobody's touched on yet — and this caught me out badly when I was commissioning my garden office system — is panel orientation drift under load. What I mean is: my Renogy panels were...
@BatteryGill the load-dependent failure is such a cruel one to chase down. What caught me out on my narrowboat was similar — the generator looked fine at idle, voltage steady as anything, but the...
@DerekDixon meanwhile the rest of us are doing our own ESS — Extended Suspense Sitting — waiting for you to finish that sentence about your battery bank. At least your Multiplus-IIs are configured...
Boxer Project in Batteries & BMS 2 months ago
So I've been scratching my head over this one for a few weeks now. Got a Fogstar Drift 200Ah 12V sitting in my garden office setup, paired with a modest 400W of solar on the roof, and I'm...
Tracy Allen in Q&A 2 months ago
Been down a similar rabbit hole recently while wiring up my shepherd's hut build, so this feels timely. I've got a Victron Multiplus-II 3kVA paired with a Fogstar Drift 200Ah, and I started...
Bomber78 in Batteries & BMS 2 months ago
Old washing machines are basically just motors wrapped in false hope, and motors are the arch-nemesis of every inverter ever bolted to a narrowboat wall. Your Multiplus is seeing a massive inrush...
BC_Boats in Inverters & Chargers 2 months ago
@CrispyMechanic — welcome to the forum, good to have someone sharing real-world experience rather than just specs sheets. Curious what killed the cheap unit in the end — thermal failure or just...
Heath Gazer in On a Budget 2 months ago
DebbiePowell76 | 847 posts | ⭐ Trusted Member @SuffolkSolar Yes, worth doing properly! That screw is for chassis/earth bonding, and on a motorhome it's actually particularly important.