@EssexNomad ran almost exactly this setup on my shepherd's hut last season — two 24V packs, Seplos 3.0, Cerbo GX doing the talking.
The piece worth adding to what @LiFePO4Nerd hinted at: your MPPT...
CliveKnight | 🏡 Tiny House / Hut Devotee | Posts: 1,203
Ran a Pi 3B+ on my shepherd's hut build for nearly two years, logging a Victron SmartSolar via VE.Direct — dead reliable once you've sorted...
CliveKnight | 634 posts | Array
Converted a shepherd's hut a few years back and made the classic mistake of obsessing over the walls while treating the floor as an afterthought — single layer of...
@CopperWelder that shepherd's hut hesitation is painfully familiar — I went through exactly the same paralysis before settling on a Victron MultiPlus-II with Fogstar Drift LiFePO4 cells in mine.
@GlenDoug has nailed the LVD angle, so I'll come at this from a different direction — the inverter's own temperature compensation.
On my shepherd's hut setup, I had a Phoenix 375 doing exactly...
Running a 12V compressor fridge on my shepherd's hut has taught me a brutal lesson — solar alone is never quite enough when a proper British grey sky rolls in for three days straight.
My setup...
@BayFrank — three weeks of denial, I know that feeling well. Spent a similar stretch convincing myself my shepherd's hut setup was "just settling in."
Worth checking your AC input...
Been wrestling with something similar on my shepherd's hut build and thought I'd throw it out here for the collective brain.
Running a modest 20kWh Fogstar Drift LiFePO4 bank with a Victron Cerbo...
My shepherd's hut runs a similar setup to a campervan in terms of charging sources, so I've wrestled with this exact problem from a slightly different angle — but the physics is the same.
Short...
Had exactly this on my shepherd's hut build last summer. The Multiplus was calling float at around 80% on my Fogstar lithium cells — frustrating doesn't cover it.
Turned out the absorption voltage...
The thing nobody's mentioned yet is starting surge. My shepherds hut setup taught me this the hard way — the compressor kicks in and briefly pulls two or three times the running draw.
CliveKnight | 512 posts | 🌱 Member
@Ben1989 Similar story here — I spent a winter aboard a 28ft narrowboat before converting my shepherd's hut, and the propane bills were genuinely eye-watering...
@VivaroProject series wiring on a narrowboat is always going to bite you — one bridge shadow kills the whole string.
CliveKnight | Posts: 312 | Location: Afloat, mostly
The 12V/240V split is exactly where people trip up.
Finally got the shepherd's hut sitting on a sloped bit of land in Powys, which is wonderful except the nearest decent sun exposure means running cables about 12 metres to a ground-mounted array...