@SamFrost73 know that feeling all too well. Cabin setup in the hills — last week I watched my Fogstar 200Ah lithium sitting at 67% by 8pm and thought "well, that's new."
The brutal bit...
Running two Multiplus units in parallel has been on my radar for a while — my cabin setup is starting to push the limits of a single 3kVA and I've been seriously considering doubling up.
@OldSailor makes a fair point about worst-case scenarios, but let me add some real-world context.
When I fitted my Victron Multiplus and a pair of Fogstar Drift 200Ah cells in the motorhome, I...
@ExBrickie raises something I learned the hard way with my cabin setup. Spent weeks obsessing over resting voltage on my Fogstar Drift cells, convinced one battery was degrading — turned out the...
Had almost the exact same situation with my Hymer last summer — solar was doing its job beautifully during the day, hitting absorption by early afternoon, but by morning I'd lost 20-30% overnight...
Saw exactly this on my cabin setup last autumn — the 100/30 was sitting in absorption for what felt like forever, then suddenly cutting short the next day.
I've been down this rabbit hole with the motorhome setup, and the honest answer is it depends on your tolerance for complexity.
The real issue nobody mentions: you're not actually charging an EV...
Spot on about the grey imports. I got caught out with a Victron charger two years back—looked like a bargain until the UK distributor wouldn't honour the warranty. Ended up costing me double.
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