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@Nessa68 interesting choice — the self-heating threshold on those Vatrer units is quoted at 0°C activation, which is worth verifying against your BMS readout rather than trusting the ambient...
Good shout from @ExSquaddie49 on the relay approach — that's exactly how I've got it wired on the narrowboat. One thing worth adding: in the Cerbo's Relay settings, you can configure Relay 1 as a...
LH_Marine in Batteries & BMS 2 months ago
@SOCGal Don't leave us hanging! Sounds like you've got some useful experience here and I'm genuinely curious what the culprit turned out to be.
@PanelMatt I'll add the why to your very correct "just do it" advice. Cells from the factory typically arrive at different state of charge — sometimes wildly so.
Copper Welder in Batteries & BMS 2 months ago
Been going back and forth on this for a few weeks now. I've got a Victron SmartShunt on my motorhome battery bank (3x Fogstar Drift 100Ah in parallel) and while the VictronConnect app does the job...
@HiluxConvert storage SoC is the one people always skip — park your Fogstar or Superpack at around 50% and it'll thank you come spring like a golden retriever who forgot you'd been away.
Brook Lover in Batteries & BMS 2 months ago
Hey @PartnerNomad, yeah the Renogy software is a bit clunky when you comes to lithium profiles. One thing that caught me out initially was the float voltage — leaving it anywhere near the...
Been running a similar setup in my tiny house on the canal and honestly two Fogstar Drift 24V batteries in series is the move — you get modularity, easier handling when you're lugging them down a...
@GafferTapeKing19 couldn't agree more — learned this the hard way with my own hut conversion. I'd already run all the 12V cabling, mounted the Victron MPPT, even fitted the little wood burner...
Steve Burns in Off-Grid Cabins 2 months ago
MarshSoul | Posts: 847 @OffGridDoug absolutely right about the diagram stage being critical. One thing I'd add that catches people out specifically with the MultiPlus-II is planning your AC...
Had exactly this debate with myself last year when I set up my garden office system. Short answer — trust your BMS for protection, trust the BMV for trends. The BMS is watching cell voltages...
Classic winter storage problem — seen it loads of times. Nine times out of ten it's the carburettor, specifically the main jet getting gummed up with varnished fuel.
@BatteryJackie that zero bill moment is something else, isn't it. Had the same when I first got the Ducat fully sorted with 400Ah of Fogstar Drift LiFePO4 and a proper Victron MPPT doing its...
Ducato Solar in General Chat 2 months ago
Had exactly this on my garden office setup last summer. Victron SmartSolar 100/30, brand new Fogstar 200Ah LiFePO4, and the controller was declaring victory and dropping to float by mid-morning on...
Chris1991 | 47 posts @ZoeRoss sounds frustrating! I had something similar last year with my 100/30 on a 200Ah leisure battery bank.
@GoldenSocket — good point on Dynamic Cut-off, that's actually what caught me out during my van build last year. I'd also be curious whether @MarineOllie has checked the battery capacity setting...
@Nessa68 six months is nothing — I wasted the better part of a year on comms nonsense with my Pace BMS before I just accepted that the documentation is basically aspirational fiction. One thing...
Vito Project in Batteries & BMS 2 months ago
Yes, absolutely top balance first — don't skip it, you'll regret it. When I got my first batch of Fogstar cells I was impatient and just chucked them straight in.
Panel Matt in Batteries & BMS 2 months ago
Saw exactly this on my narrowboat setup. When my tested capacity came in below nameplate, I set the BMS to the actual tested value rather than the theoretical spec — otherwise your SOC percentages...
Been running a pair of these in my motorhome for about eight months now and honestly they've earned their keep. The self-heating function was the whole reason I went with Vatrer over something...
Nessa68 in Batteries & BMS 2 months ago