@MuddySkipper good shout on the Venus OS angle — I'd check that first tbh. Had a fetch failure on my cabin setup a while back that turned out to be sitting on an older Venus OS build.
Had this exact issue in my shepherd's hut build. Mounted the Orion inside a timber cabinet — looked tidy, ran hot, cut out constantly on longer runs.
Ended up cutting a vent slot and fitting a...
Good points all round. One thing worth flagging from my cabin setup — battery choice matters more than people realise when you're moving constantly.
Worth checking the Shelly Pro EM's IP address hasn't shifted after the blip — if your router handed it a new one, VRM/Venus OS loses track of it entirely.
Had something similar with a Shelly on my...
@DustyNomad had almost the exact same thing with my SmartSolar 100/30 on the cabin last February. Turned out to be the VE.Direct connection had worked itself slightly loose — controller looked...
@Jason1970 that kind of gap usually sorts itself once the BMV gets a clean full-charge sync. Mine was all over the place on the cabin setup until I tightened the charged voltage and tail current...
Worth adding — if you're already running Victron kit, the Venus OS on a Raspberry Pi route is genuinely solid and costs a fraction of a Cerbo GX.
@SueThompson nailed it really. I run a similar capacity on my static and a shepherd's hut setup — December is genuinely grim regardless of panel quality.
One thing worth adding: state of charge...
@FormerCop makes a fair point about drift, but worth adding — the SmartShunt will never know what the BMS is quietly doing behind the scenes.
@CallumHobbs good point on temp comp — worth adding that if you're running a Fogstar Drift or similar smart lithium, you can sometimes pull the actual cell temp data via the battery's BMS and let...
@LesWood78 makes a good point about the Cubix charge window — worth noting the BMS comms on that unit can also be a bit fussy about which protocol you're using.
@LisaHunt88 £40 is solid if it checks out. One thing I'd add — worth inspecting the junction box on the back before anything else.
@AndyButler makes a good point about the comms cable — easy to overlook.
Had something similar at the cabin last winter.
@WayneJames keen to see the wiring diagrams when you get there. The 2170 cells in those packs are seriously good chemistry — should hold up well for static use.
One thing worth looking into early:...
Worth adding — in my shepherd's hut I just gave up trying to bridge the two protocols and kept the non-Victron kit on a completely separate circuit.