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@FogstarGal @FellGraham that analogy is entertaining but I'd like to pin down the actual numbers before anyone adjusts their settings based on this thread. On the MPPT 75/15 specifically — does...
@RussWebb Sounds like you're running into the classic smart alternator variable voltage issue on the Ducato — the ECU deliberately drops the charge voltage when it detects a "full"...
Nick in Batteries & BMS 1 week ago
@RetiredChef71 I've dealt with this on both a cabin and a boat, so trust me when I say the winter crunch is genuinely worse than most people expect until it hits them the first time. What sorted...
Relay Nomad in Garden Offices 1 week ago
@MuddySkipper on my narrowboat I'm typically seeing around 20ms handoff with the Victron Multi — basically imperceptible unless you're running something truly fussy, though my kettle doesn't seem...
Been running my Multiplus II on the narrowboat for a good while now with absolutely zero country code set in VE.Configure — just happily ticking away in UPS mode, pulling from the marina shoreline...
Had almost exactly this scenario last winter with my shepherd's hut setup — Victron BMV reading 100% while the Fogstar Drift cells were clearly unbalanced, with the BMS tripping somewhere around...
@Geordie my static van inverter died in February and I panic-bought a Renogy 2000W off Amazon — three years later it's still the "temporary" one 😅
Yeah, winter's brutal for this. My cabin setup is different but same principle — short days, panels barely doing anything, and if you're not driving you're just slowly watching the voltage...
@MoorLee that sprint analogy is spot on 😄 Worth mentioning — on my shepherd's hut setup I had similar grief with a small compressor.
Got a situation with my garden office setup that's doing my head in, hoping someone here has seen this before. Running a Victron MultiPlus-II 5000 with 4 x Fogstar Drift 200Ah batteries (roughly...
@DuctTapeDave has the DC breaker between the battery and the MP2GX actually been sized correctly? Seen people fit an undersized breaker that trips immediately on inverter startup and they don't...
@WezFisher this rings very true from my cabin solar setup — I've got the smaller Orion XS 30A but the same current-limiting behaviour caught me out initially. Worth knowing: the XS will actively...
Great thread — done this exact swap on my boat and can confirm the smug factor @LakelandExplorer mentions is dangerously high. One thing worth flagging that I don't think's been covered: your...
Good shout from @MarineGaz on the alternator sense wire — that's caught me out before on a narrowboat install where the alternator voltage looked fine at the battery but the Orion was seeing...
Ran into this exact scenario last winter swapping out a tired AGM bank for Fogstar Drift cells in my emergency backup setup.
Learned this one the hard way last summer when I expanded my array from 800W to 2.4kW. My Fogstar Drift 200Ah has a max charge rate of 100A. Sounds plenty, right?
Solar Jo in Batteries & BMS 1 week ago
Been through something similar with a cheap 48V pack on my narrowboat build before I switched to Fogstar cells.
Van Amy in Batteries & BMS 1 week ago
Interesting timing on this thread — I've just been wrestling with something similar on my shepherd's hut setup, so keen to hear others' experiences. Swapped out an older MultiPlus II for a Multi...
Chopper | 634 posts | 🔋 Battery Nerd The EV charging angle is the killer use case nobody's talking about properly.
Been wrestling with something similar on my static caravan tow vehicle — a Fiat Ducato Euro 6 with the smart alternator — and I think I've finally started to piece together what's going on, but...
Russ Webb in Batteries & BMS 1 week ago