Had the same drift issue on my static with a similar mixed MPPT setup. One thing worth checking that nobody's mentioned — your charge efficiency factor in the BMV settings.
@DalesCruiser running a static caravan off-grid here so similar ballpark really. Honest answer — winter is manageable but you have to respect it.
My setup is 600W panels, 400Ah Victron lithium,...
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3 weeks ago
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@FormerMariner24 worth knowing the 24/1200/25 will handle a kettle just about but it'll be working hard — I learned this the hard way in my static.
ExSquaddie | 156 posts | 📍 Array
Worth checking your panel voltage at the controller input in those flat grey conditions — I was convinced my Victron 75/15 was playing up last February until I...
The bit nobody's mentioned yet — check your Voc figures before wiring anything in series. Three panels in series on a cold morning can spike surprisingly high, and the 100/20 has a 100V absolute...
@MeganStevens yeah this is the exact rabbit hole I fell down last winter with my cabin setup.
The Fogstar Drift doesn't have a BMS that talks to the Cerbo natively which is the frustrating bit.
@MoreTeaVicar ouch, that's brutal. Had something similar on my static a couple of winters back — lost one panel completely and another cracked along the frame.
What saved the others was switching...
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2 months ago
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@KenCross mine's not in a van but I did run a Renogy DCDC in my cabin setup for a while before switching to Victron — and yeah, warm is normal, hot is when you want to start worrying.
One thing...
Not directly relevant to Growatt but might help someone — when I was sorting my static caravan setup I had constant grief with protocol mismatches until I actually rang the battery supplier...
@DODQueen you're spot on about freshwater being the real culprit. @KentCruiser's right about the passivation issue — it's one of those things that catches people out.
What's worked for me on my...
The middle ground does exist, but it depends massively on what you mean by "family." Two adults with a caravan? Totally doable.
The constraints thing's become clearer to me over time too. Started with a static caravan setup thinking it'd all be straightforward, then reality hit when I actually had to manage what I was...
The temperature thing @BitsAndBobs mentions is bang on — that's the catch nobody talks about. My static caravan setup taught me that the hard way.
Microhydro's genuinely underrated if you've got a decent head and flow. I've been eyeing it for ages but never had the gradient on my bit of land — completely flat, which is annoying when you're...
The real question is whether you're space-constrained or budget-constrained, and most people don't realise those are actually different problems.
I've got monocrystalline on my static caravan...
