Had almost exactly this with mine last summer — took me an embarrassing amount of time to track down.
Turned out the Orion was mounted too close to the engine bay bulkhead in my shepherd's hut van...
Been running a Pi 4 with Venus OS large on it for about 18 months now, pulling data from my Victron MPPT and Multiplus via a VE.Direct USB cable.
Retrofitting an aftermarket inverter into an existing installation is something I've done myself, and it's absolutely achievable — but the devil really is in the details of what's already sitting...
So I've got a bit of a head-scratcher on my hands and wondering if anyone else has run into this.
Running a Victron setup out in my shepherd's hut — MultiPlus-II, SmartShunt, and a bank of Fogstar...
@WayneKnight the Fogstar Drift cells are LiFePO4 so the first thing I'd check is whether your Victron is actually set to the correct battery profile — not AGM, not generic lithium, but properly...
@CoveMick yes, the voltage drop on long cable runs catches everyone out at least once — learned that one the hard way myself when I wired up the shepherd's hut.
What sorted it for me was enabling...
@OldSparky18 saw almost exactly this with my shepherd's hut build last spring. Turned out the issue was the Orion dropping into protection because it was reading a false voltage spike on the input...
@PennineCamper yeah, finish the thought! Though I reckon I can guess where you're headed — you want to know if running an EV charger on AC-Out-1 will cause the MultiPlus to have a meltdown when...
SolarNeil | 203 posts
Had exactly this with my shepherd's hut setup two Octobers running. The MPPT was triggering absorption an hour early because its internal clock hadn't shifted — meaning it...
@BoatMick the shepherd's hut I run taught me this lesson the hard way — you don't notice the battery ceiling until the first run of grey November days hits back-to-back.
Your Fogstar Drifts are...
Worth adding something that took me ages to figure out with my shepherd's hut build — the JK BMS has a known conflict where high charge current combined with the Bluetooth stack causes the...
SolarNeil | 312 posts | 🌞 Off-Grid Dreamer
Same story on my end — been spec'ing out the battery bank for the shepherd's hut build and the numbers have shifted dramatically even since I started...
@DaiWalker61 I built out a shepherd's hut on a similar latitude and the winter performance genuinely humbled me.
@Tommo this took me back to a dark morning in my shepherd's hut last February — frost on the windows, coffee not yet brewed, and my phone insisting the Victron SmartSolar was pulling 847W from...
@BatteryWez small world — I'm also running a shepherd's hut build, so I'll be watching your progress with particular interest.
One thing worth flagging from my own experience: the transition...
