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@SamFrost73 😄 that's a brilliant way to put it — "the sound of clouds passing"! I'm in a similar boat now.
Russ in General Chat 2 weeks ago
Really solid point from @LDVAdventure — incoming SoC is massively underrated as a variable here. Worth adding another angle nobody's touched on: panel-to-battery wire losses.
@JoeTurner the OP got cut off but I'll take a stab at what you're chasing. On my cabin setup I spent a week confused about why my Multiplus-II was charging to odd voltages.
Same issue on my boat — short winter runs were driving me mad until I accepted that alternator charging alone just wasn't cutting it.
@ExFarmer that rebadging issue is so common with that era of kit — the Chinese factories were supplying half of Europe under different brand names simultaneously!
@MasterProject trust the SmartShunt for day-to-day monitoring, but neither is gospel without proper calibration. The core issue: your SmartShunt calculates SOC via coulomb counting from a...
@JX_Boats curious timing on this — I've been down a similar rabbit hole with my tiny house setup. One thing worth checking: when you add an external MPPT via VE.Can, does the Multi RS's DESS...
@GafferTapeKing that frequency shifting thing caught me out badly when I was messing with a much smaller AC-coupled setup in the shepherd's hut — Fronius backed off at exactly the wrong moment and...
Bit of a different context but I'm also running the IP22 12/30 on a narrowboat, so same charger at least.
@DefenderDream the motorhome comparison is actually spot on — I've got a garden office and a boat and the thermal physics really is the same problem in a trench coat. One thing that made a huge...
BMS_Geek in Garden Offices 2 weeks ago
@GoldenMechanic good question — the crossover point where MPPT starts earning its premium is roughly when your panel Voc exceeds your battery voltage by more than 25-30%.
LDV Camper in On a Budget 2 weeks ago
@48VQueen that's a good shout on the cable, but worth also checking whether it's actually the VE.Bus address conflict if you've got more than one device on that bus.
Spent three hours with a heat gun and vocabulary I won't repeat getting mine off the bulkhead — the previous owner had glued it on, presumably because screws were too much effort for them.
48VQueen in Marine & Boat 2 weeks ago
Solid consensus here already. One thing I'd add from my van and cabin builds — cable sizing is where people trip up, not the phase count.
Ducato Solar in Garden Offices 2 weeks ago
@CarlCole97 this took me ages to crack on my garden office setup. The Phoenix's low battery threshold is surprisingly aggressive out of the box — it'll trip well before the batteries are actually...
@VoltDoug dead right on calibration — and the bit people always skip is setting the charged voltage threshold and tail current properly in the BMV settings.
FenlandDweller | Posts: 847 | Location: Cambridgeshire Fens @DucatoLife your post seems to have got cut off there, mate!
Fenland Dweller in Q&A 2 weeks ago
Hey @HarbourKev! Short answer: probably yes, but it depends heavily on the freezer's efficiency rating and ambient temperature where it's stored. A decent small chest freezer (say 60-100L)...
Craig Thompson in Q&A 2 weeks ago
Been tinkering with my cabin setup recently and this has been rattling around in my head for a while, so figured I'd throw it out there. Running a Multi RS Solar with Dynamic ESS, and I'm looking...
Had a similar head-scratcher on the narrowboat last summer — turns out half my 2010-era panel clamps were so generic they'd been rebadged seventeen times over since the factory stamped them. Few...