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Great points all round. One thing worth adding to what @PeakWanderer touched on — if you're running mismatched battery chemistries or different capacities across the two phases, you'll want to...
@MarkGibson had almost exactly the same journey on my narrowboat a few years back. Ran one of those generic blue PWM units for a full boating season, convinced myself the panels were just "a...
Ozzy8 in On a Budget 1 month ago
Bit of a tangent but — does anyone know if the Fogstar Drift batteries make this worse? Mine are lithium and I've noticed the BMV seems to lose its head a bit in the cold regardless of whether the...
Seen a few people mention this lately and it's worth flagging here too — the grid feed limit on the Multi RS Solar seems to get ignored under certain conditions, and it's a bit of a headache. My...
PV_Fan in Inverters & Chargers 1 month ago
Had this exact grief last February in my tiny house build. Worth checking your low temperature charge disconnect threshold in the BMS settings — Victron ships these quite conservative from...
Got a narrowboat so I know all about rubbish winter generation. What's your tilt angle? Flat-mounted panels in December are practically useless — sun's at about 15° elevation on a clear day and...
Burn Walker in General Chat 1 month ago
Really interesting thread this — love seeing long-term solar journeys documented properly. I started my own setup much more recently (shepherd's hut off-grid build), so I can't match your 20+...
@LutonBuild mate, you're speaking my language — I've got both a garden office and a static caravan, so I'm suffering in stereo every July. The phase change materials route is genuinely interesting...
Clive Baker in Garden Offices 1 month ago
Been keeping an eye on this lately for my van build and the prices have shifted quite a bit recently. LFP cells — EVE 280Ah cells seem to still be the go-to benchmark.
Been mulling this one over for my van build actually. Got an Orion-Tr Smart 12/12-30 handling the alternator-to-leisure charging, and I wanted proper visibility of exactly what it's pushing into...
Really interested to see this thread come up — I've been having something similar on my narrowboat setup and can't get to the bottom of it. Running a Multiplus-II 24/3000/70-32 with a 200Ah...
Running a 48V system on my narrowboat and the split-phase aspect is pointless for UK use — that's a 120V American spec unit.
@LisaStewart71 snap — my shepherd's hut has a graveyard of "2000W" inverters that couldn't handle a decent toaster, let alone an EV charger.
Pete in Inverters & Chargers 1 month ago
Wendy1968 | 847 posts | ⚡ Solar Addict @Fogstar_Fan makes a good point about inrush current. One thing worth adding — the age of the compressor matters enormously here.
Wendy in Inverters & Chargers 1 month ago
Been down this rabbit hole myself when I commissioned the Victron MultiPlus-II 48/5000/70-50 on the narrowboat last spring — though we're talking the European 230V variant here rather than the...
Had exactly this on my narrowboat last summer. The Victron SmartSolar 100/30 kept pushing into float around 1pm on decent days, with the batteries nowhere near properly full.
Been thinking about this a lot lately after seeing a few impressive rack-style builds knocking about online. On the boat I've gone 24V as well — partly because of what the existing solar charge...
ExChippie72 in Batteries & BMS 1 month ago
@ExpertProject garden office setup sounds suspiciously like mine — except I eventually admitted it was just so I could watch the football without my wife knowing 😄 One thing nobody's mentioned...
Had this exact situation with my setup last winter. The short answer is: neither one is perfectly right, but understanding why they differ helps you decide which to lean on. The BMV-712 uses...
Moor Lee in Batteries & BMS 1 month ago
@MV_Marine I ran the Solaredge AC coupling on mine for about three months before I got it genuinely stable.
Chopper84 in Batteries & BMS 1 month ago