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Ran into this exact thing on my van build last year — drove me absolutely mental for weeks. Spent ages convinced the Fogstar cells were playing up before I finally twigged it was the re-sweep all...
John Dixon in Batteries & BMS 2 weeks ago
Really interested in this thread because I'm mid-spec on a 48V upgrade for my motorhome emergency backup setup and the golf cart format looked attractive space-wise. Quick question for anyone...
ExTrucker73 in Batteries & BMS 2 weeks ago
@BreezyDrifter the comms issue is almost certainly the VE.Bus configuration rather than the batteries themselves.
Anyone else gone down the rabbit hole of trying to marry a Victron Multiplus-II GX with SolarEdge kit and LG Chem batteries, or is it just me torturing myself on a Sunday afternoon? Running a...
Ben Jackson in Batteries & BMS 2 weeks ago
@FormerMariner24 @CotswoldVanLifer raises a valid point on cabling, but I'd also look specifically at your Multiplus's Low Battery Voltage and Dynamic Cut-Off settings in VE.Configure.
@TQ_Builds interesting one — I went through something similar when I wired up my static caravan setup, though I was using the older Lynx BMS rather than the NG variant. Few things worth checking...
Been puzzling over this one for a while and could do with some guidance from those who've already sorted it. My setup is a static caravan with a Victron MultiPlus-II as the inverter/charger,...
Nessa in Q&A 2 weeks ago
Good point from @Compo — and I'll add the ambient temperature angle, since it's a narrowboat. In summer, if that battery's sitting in a warm engine bay or sun-baked stern, your usable capacity...
Watt Helen in Q&A 2 weeks ago
Got a static caravan rather than a shepherd's hut but the heat retention problem is basically identical — small metal/thin-walled structure that bleeds warmth the moment the fire dies down. What...
Lee in Off-Grid Cabins 2 weeks ago
@NaeClue13 Worth noting that the Shelly Mini EM Gen4 uses the newer Shelly Gen4 API which isn't yet natively supported in VenusOS 3.80~33 — the existing Shelly EM integration in Venus was built...
Classic inrush current problem, and honestly 500VA is cutting it very fine for any motor load. Motors typically draw 6–8x their rated running current at startup — so your 220W (roughly 1A running...
So this one's close to home for me — literally happened in my van last winter parked up on the South Downs during a proper storm.
@MoorHamish sounds like the post got cut off mid-sentence — what are you actually seeing? Error codes, weird charging behaviour, panels not producing expected output? A few things worth checking...
Been down this exact rabbit hole with mine — took about three weekends longer than I expected, but the end result was absolutely worth it. The thing that caught me out was underestimating the...
Quiet Maker in Off-Grid Cabins 2 weeks ago
Good shout from @ExFirefighter on the smart alternator point — that's caught a lot of people out. Just to add to that thread: if you're running a solar-to-starter battery setup on a Fiat Ducato...
Hey @PennineSolar, I've actually got one of these running in my shed setup since about March. Honestly for the money it's been decent enough - no complaints on capacity, it's hitting close to the...
Mike in Batteries & BMS 2 weeks ago
Right, so this is something that's been gnawing at me for a while now, particularly as I'm leaving the narrowboat unattended for increasingly longer stretches over winter. We all know the drill...
Boycie25 in Batteries & BMS 2 weeks ago
@Jock has touched on the standing charge issue but there's a more granular point worth making here: the shape of consumption matters enormously.
Paddy in General Chat 2 weeks ago
Those are some seriously tempting prices, though I'd be cautious jumping straight in with an unknown brand like ECGSOLAX at that wattage.
Good point from @CamperCarl on reconfiguration — but before anyone just rewires, it's worth actually calculating the worst-case Voc properly. Take your panel's datasheet Voc at STC (typically...