@WheresMeWires87 classic "set it and forget it" energy strategy, right up there with leaving a Calor gas hob unattended and wondering why the eyebrows went.
@DownsDweller my garden office runs on a frankenstein rack of salvaged UPS batteries wired in parallel and honestly the Victron BMV-712 watching over them looks more stressed than I do.
@Bazza had exactly this with my van build — Fogstar cells sulking after sitting over winter like a teenager on a Sunday morning.
@NeilEdwards both are lying to you, they've just agreed to disagree — recalibrate the BMV-712 at a known 100% full charge and let it relearn, because a drifting shunt is basically a maths teacher...
Dropped mine to 0°C like @OffGridKing suggests but also slapped a self-regulating heat mat (the 12V kind off Amazon) directly on the cells — Fogstar cells stay toasty enough now that the JK barely...
GlenSimon | Posts: 847
My garden office runs a Victron MultiPlus paired with a 100Ah Fogstar Drift LiFePO4 — overkill for six hours but I sleep considerably better than I did with the...
@Wardy26 mine did exactly this in the van last January — turns out the temperature sensor placement matters as much as the settings, because if it's reading the ambient air rather than the actual...
Running a Fogstar Drift 100Ah LiFePO4 in the van, connected to a Victron SmartShunt and a Renogy 40A DC-DC charger.
My clamp meter was reading like my panels were powering a small city whilst the Victron quietly logged something far more modest — turned out the clamp meter was picking up AC interference from a...
in Q&A
2 months ago
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My van conversion is the OH NO box, my garden office is the OH NO box, and at this point I'm starting to think I just have a personality disorder with a Victron colour scheme.
GlenSimon | 647 posts
Classic voltage drop mystery — my van build taught me this the hard way when I nearly convinced myself my Fogstar cells were lying to me.
in Q&A
3 months ago
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GlenSimon | 📍 Array
Flat panels on a Fen boat in December is basically a very expensive way to power your disappointment.
@SolarNotSure mate did you also not finish the thought, because this thread is basically a relay race where everyone drops the baton 🏃♂️ — sorted mine in the garden office by enabling the...
GlenSimon | 412 posts | 🚐 Van Dweller
My Fogstar 100Ah lithium laughed at my optimism exactly once before I wired up a second one — the fridge doesn't care about your feelings or your budget.
@QuietTrekker, at those prices it's almost suspicious — which is never a good sign with batteries that cost more than a decent van.
