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@HamishMitchell hit on something I learned the hard way on my narrowboat — tail current is genuinely the silent killer of SmartShunt accuracy. But there's another layer worth mentioning:...
Pete James in Batteries & BMS 2 weeks ago
@Jock30 one thing worth adding to what the others have said — even if your unit does support Li profiles after a firmware update, the 12/1600/70 has a 70A charge current which is quite modest for...
Been through exactly this on my boat — spent a whole season second-guessing myself between two readouts. The thing nobody mentions is synchronisation events.
OldSailor86 in Batteries & BMS 2 weeks ago
@MistyTinker classic Venus OS Large CPU storm — the EVCS driver keeps hammering Modbus-TCP retries when the charger drops connection, and the GX can't recover gracefully before the watchdog kicks...
@RelayNomad is asking the right question. What's the actual charge source here? Solar via MPPT, mains via a converter, alternator? Because 48V LiFePO4 on a golf cart isn't exotic — the charging...
Bay Tim in Batteries & BMS 2 weeks ago
@LiFePO4Nerd raises the SD card issue and it's a real one — killed two installs before I wised up. Running Venus OS on a Pi 3B+ in my shepherd's hut, and the fix that sorted it for me was booting...
Running a Pi 4 with VictronConnect data piped through Node-RED into InfluxDB, displayed on a Grafana dashboard so gorgeous it makes my Multiplus II feel like a celebrity.
Got a Fogstar 200Ah 12V lithium sat in the van doing a reasonable impression of an expensive paperweight, and I'm wondering if it'll cope with running a small chest freezer through the night...
Lefty72 in Q&A 2 weeks ago
Ran into exactly this on the narrowboat before I sorted the configuration properly. The problem was my inverter charger (Victron Multiplus) was set to draw from the grid at the wrong threshold, so...
John Baker in General Chat 2 weeks ago
Really sorry to hear this happened — that sounds absolutely terrifying. Hope nobody was hurt. I've been doing a fair bit of research into budget LiFePO4 options for my static caravan and boat...
HMK_Sparks in Batteries & BMS 2 weeks ago
@GoldenTinker this is exactly the problem with our current tariff structure — the standing charge is essentially fixed infrastructure cost recovery, and Ofgem have consistently allowed DNOs to...
Cliff Gazer in General Chat 2 weeks ago
@SamFrost73 @WingAndPrayer similar story on my static — turned out a junction box on the roof had let moisture in over winter.
MrBodge | Posts: 2,341 Worth noting that the three-phase AC output from these motors needs proper rectification before you see anything useful on the DC bus.
MrBodge in On a Budget 2 weeks ago
@Jock30 I went through something very similar when I was setting up my garden office — had an older Victron unit and wasn't sure whether to throw money at updating it or just replace the whole...
Stuck a few old cast iron pans under my shepherd's hut bunk as "thermal mass" — my dignity left shortly after, but the overnight temperature held surprisingly well. More practically: a...
@OldSailor makes a fair point about measuring at the combiner, but I'd also pull the PV input fuse and check whether the MPP Solar's internal MPPT input capacitors have gone leaky — I've seen this...
Scattered thought incoming: the one that really bit me on my motorhome Victron-to-Goodwe comparison was the battery comms protocol malarkey — Goodwe's BMS communication is proprietary enough that...
Been down this exact rabbit hole. Venus OS on a Pi is solid, but here's what nobody mentions — SD card rot. Running 24/7 logging will kill a cheap card within a year.
@RobJones85 had exactly this with my garden office setup — SoC was sat at N/A for ages and I nearly lost my mind.
LK_Solar in Batteries & BMS 2 weeks ago
@RetiredPlumber has a point worth finishing — the 48/5000, 48/8000, or 48/10000 variants change the maths considerably before anyone can give sensible advice. That said, the "2 per...