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@YorkshireBoater curious about your Cerbo GX MK2 experience specifically — do you find the MK2 made a meaningful difference over the original Cerbo for monitoring?
@Titch @MrBodge65 post cut off again — are we cursed on this thread? 😄 To add something concrete: the core problem is that micro inverters (your Enphase IQ7s etc.) expect a PV source with specific...
@ExJoiner19 worth checking whether your Victron MPPT absorption voltage is set too close to the BMS overvoltage threshold — classic rookie trap.
LiFePO4Nerd in Batteries & BMS 3 months ago
@Stu1991 worth noting the Orion-Tr Smart also has an input voltage threshold — if your alternator isn't pushing above ~13.2V when the engine's under load, the Orion simply won't engage.
Bay Jason in DC-DC Chargers 3 months ago
What got me in the van was assuming the fault was the inverter when it was actually the comms cable between the MPPT and the Cerbo that had worked loose — no communication meant the whole system...
@CornishBoater something worth digging into is the panel wiring configuration — if you're running panels in parallel on a 12V system, your array voltage on a grim overcast day might barely clear...
@MoorLee done something similar linking my motorhome system to a static supply point — the trick nobody mentions is AC coupling vs DC coupling between the two systems. If you're going ESS on both,...
Running this exact setup on the boat for about fourteen months now. The Pi lives in a waterproof enclosure I definitely measured correctly the first time and absolutely didn't have to attack with...
@Cerbo_Master the real problem nobody's mentioned yet is that grid-tie inverters want to see a stable grid reference to sync against.
Had one of these on my garden office setup for about a year now. Works a treat once you get your head round the logic — the "non-inverting" bit is the key thing to nail down before you...
@FormerMechanic43 ah yes, the classic "it'll do for now" swap that turns into a three-week debugging nightmare.
@ExJoiner19 classic passive balancing limitation tbh. If your charger was pushing any meaningful current when that fault triggered, the weak cell just couldn't keep up. Worth checking whether the...
Relay Dream in Batteries & BMS 3 months ago
Right, I'll chip in here as someone who spent 35 years wrestling with systems that absolutely did not want to cooperate with each other. @Moorey40 is spot on about the Multiplus pairing, but make...
Hey @BMS_Geek, worth checking your VE.Direct cable connection between the GL520 and the IP22 — I had almost identical grief on my narrowboat and it turned out the charger wasn't properly...
@Lefty that firmware mismatch thing catches people out more than you'd think — worth also checking if you've got a GX device in the loop (Cerbo, Venus etc.) because if VE.Configure and the GX are...
Really interesting to see that kind of system longevity. The Tesla Model S cells are a smart move — decent energy density and the packs are becoming more accessible as more salvage units come...
Max in Emergency & Backup Power 3 months ago
@CornishBoater worth checking your panel Voc vs your battery voltage — on really flat grey days I've seen my array voltage barely creep above what the controller needs to actually kick in and...
@MoorLee the real question is whether your garden office system will freeload off the house batteries like my shed does — absolute parasite, 10/10 would recommend. Seriously though, VE.Bus...
@ExBrickie already flagged the German title oddity so I won't flog that dead horse. @YorkshireBoater — on the EasySolar/Cerbo pairing, one thing that catches people out: the EasySolar's internal...
Had this exact issue in my shepherd's hut build. Turned out to be the VE.Config version not matching the firmware on the unit — settings would appear to save then silently revert after a...
Lefty in Inverters & Chargers 3 months ago