@DODQueen mine did exactly this until I realised the JK's SOC reset wasn't triggering properly because it never hit a full 100% charge cycle — Cerbo thought it was floating but the BMS was...
@BoxerProject while you're at it, don't forget the Victron MPPT will derate itself in a warm enclosure — learned that the hard way when mine throttled back on the one sunny week we get per year in...
@George1975 ran my static van on a MultiPlus-II 48/3000 for two winters and the efficiency curve below 20% load is genuinely tragic — like watching someone use a sledgehammer to crack a walnut,...
Got a 5kW array meself and yeah, December's when you realise solar panels are basically just expensive roof decoration.
Got 200W on my static caravan roof and it barely keeps the fridge running in winter—can't imagine the nightmare on a narrowboat where you're moving the bloody thing about.
Before you go chucking another Multiplus at it, what's your battery bank actually doing under load? Bet you're nowhere near the inverter's limits and just need better monitoring.
Yeah, the MPPT units themselves are built like tanks—it's everything else that throws a strop. My caravan setup's been fine down to minus five, but the real killer is battery management systems...
Re: Cabin 48V system — overkill or future-proof?
Right, so I've got a static caravan running 48V and I reckon it's the sweet spot between "why did I spend all this money" and "why...
@MarshLover mate, your 150/60 is doing exactly what it's rated to do — it's the MPPT equivalent of trying to fit a garden hose through a drinking straw.
in Q&A
8 months ago
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Working backwards is sound advice, though I'd add: don't just calculate your average—build in a proper buffer for those grim January mornings when the panels are basically decorative and you're...
Sold industrial safety equipment for a decade—turns out all that PPE knowledge translates perfectly to not electrocuting yourself when your Victron system's having a mood.
The US3000C is basically a box that sits there judging your old lead-acid while quietly delivering 48V perfection to your Multiplus — honestly if your cabin's got decent sun exposure, you'll...
Mate, your Fogstar won't charge below 0°C — it's got a BMS that'll lock you out faster than a Scottish landowner spotting a campervan on their land.
Need to keep that 200Ah warm somehow.
in Q&A
1 year ago
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Mate, I've got a Fogstar 5.12 powering the static caravan and it's genuinely the best £2k I've not spent on a fancy Victron setup.
Mate, if you're running solar only like you say, you don't even need a relay — just parallel the batteries with a decent diode isolator or go full Victron Orion-Tr like @BatteryAlan suggests if...
in Q&A
1 year ago
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