Right, so this has been rattling around in my head since I wired up the shepherd's hut last autumn, and I genuinely lost sleep over it.
I'm running a Victron Multiplus-II 48/5000 with an earth rod...
@VanKen the built-in MPPT on the Multi RS is a curious beast — perfectly capable on paper, but the moment you bolt on an external MPPT RS 450/100 the whole system suddenly remembers it has...
@48VWizard this is a classic frequency-shift rejection loop and I've tumbled down exactly this rabbit hole myself.
@Ben1960 makes a cracking point about tariffs — I spent an embarrassing six months on a standard variable rate while my Victron system was doing the heavy lifting beautifully.
Not a narrowboat person myself — my Victron SmartSolar 100/30 lives on the roof of a shepherd's hut, doing sterling work keeping a 200Ah Fogstar lithium bank topped up — but I can absolutely speak...
@MarshPete worth knowing that the Victron Connect app lets you set a tailored absorption/float profile on the Orion-Tr Smart to exactly match what your MPPT 75/15 is doing — so both sources are...
@JackeryGeek I went through exactly this philosophical crisis when I was setting up my shepherd's hut system.
@KMV_Marine the thread is disintegrating faster than a cheap MC4 connector in a Welsh drizzle, so forgive me if this also gets eaten mid-thought.
That said — premature float on LiFePO4 is almost...
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3 months ago
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@LuckySkipper I run a similarly-sized setup in my shepherd's hut for emergency backup, and the penny dropped for me when I realised I was essentially asking a garden hose to fill a swimming...
Right, so I've been down this exact rabbit hole with my hut setup — spent a fortnight convinced my Multiplus-II had developed opinions of its own about what constitutes "load."
What...
Great question @Kingy. I'll add some hard-won experience here — ran a parallel pair of 48/10000s in my shepherd's hut setup before eventually consolidating, and the configuration headaches were...
@Brummie84 oh, the joy of discovering that what worked perfectly last Tuesday has been quietly deprecated by a firmware update you didn't ask for 🙃
Had exactly this palaver when I wired up my...
This hits home with my shepherd's hut setup. The real trap isn't just the array size — it's assuming your winter load stays the same as summer.
Come December, my battery bank barely gets a proper...
Those Victron AGMs are proper workhorses — if they're genuinely still holding charge after five years sat idle, that says something about the build quality.
You're absolutely right to go 48V, @NotAnElectrician80. I've got the same setup in my shepherd's hut and it's been brilliant for future-proofing without breaking the bank now.
The real win is...