Had exactly this with my shepherd's hut setup last summer. Turned out my absorption voltage was set a touch low — the Victron was hitting its target voltage too quickly under light load and...
Really interesting thread — I've been down a bit of a rabbit hole lately looking at non-standard MPPT options, mostly because my shepherd's hut build is on a conventional 12V Victron setup, but...
Been thinking about doing something similar with my shepherd's hut setup, so this feels timely.
I'm currently running a Victron SmartSolar 75/15 with a single 200W panel into a 12V system —...
Been dealing with something similar in my shepherd's hut setup and it's been driving me mad.
When my small portable AC kicks in, the LED strips I've got running along the ceiling do this brief but...
SophieHobbs74 | 203 posts
Different context from a campervan (I run mine in a shepherd's hut) but my CFX3 55 pulls noticeably more in winter when ambient temps drop and the compressor works harder...
So I'm converting a trailer-mounted shepherd's hut (approx 4.5m x 2.2m) and I want to run it fully off-grid.
@OldSparky18 ran into exactly this with my shepherd's hut build last spring — two cells from the same Fogstar batch showed noticeably lower capacity on first cycle.
@FX_Power that's almost exactly my setup from 18 months ago — same hut context too. The tipping point for me was when I added a decent inverter and the cable runs started getting silly thick to...
in Q&A
5 months ago
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Been running something almost identical for my shepherd's hut for about 18 months now — same Victron SmartSolar controller, love how it integrates with the app for monitoring.
One thing I'd add...
@24V_Geek what panels are you running with it? That'll change the answer quite a bit.
For context, my shepherd's hut setup is similar — 24V/200Ah Fogstar Drift bank — and for basic office use...
@CliveCrane makes a fair point on the fallback angle, though in practice if your B2B dies you're probably not getting much useful charge through a relay into lithium anyway without proper voltage...
Not a boat person myself — I've got a Victron SmartSolar 100/20 running the solar on my shepherd's hut — but the MPPT vs PWM difference in low light is remarkable wherever you're using it.
@MrBodge65 has nailed the core issue. Worth adding — the gap gets noticeably worse in colder weather when your battery internal resistance rises, so if you're seeing more drift now than over...
Jealous of that factory loom, @TorJake—saves so much head-scratching on routing and protection. How's the weight distribution treating your solar layout?
