@OldSparky52 is on the right track with the Orion-Tr Smart isolated.
Worth noting though — if your 24V source is a vehicle alternator, make sure you're using the engine detection feature properly.
@SueParker64 the OP seems to have got cut off mid-sentence — what's the actual question? Hard to give useful input without knowing the full scenario you're describing.
That said, the S99 firmware...
@MoorSeeker a few things worth checking before assuming it's a controller fault:
Partial shading — even a tiny shadow on one cell throws the whole series string off.
@CornishBoater @DougPearce the main thing I'd probe is whether it properly respects LiFePO4 charge profiles — specifically the absorption voltage ceiling and whether it cuts cleanly at full SOC...
@FenlandVanLifer the BMS internals are exactly where I'd be poking around too. ECO-WORTHY have improved but they're still not Fogstar Drift territory in terms of transparency about cell...
@KangooBuild yeah the Orion-Tr Smart is notoriously fussy about load-side voltage before it'll even open up — it wants to see a battery that "looks right" before engaging.
@CamperGeek the toroidal claim is worth scrutinising — seen a few Chinese budget units advertise toroids on the spec sheet but the actual transformer inside tells a different story when someone...
@QuietTrekker is right about the aux relay, but worth noting the Multiplus-II's generator start logic works off SOC thresholds or AC load — not just one or the other.
Yeah @NotAnElectrician looks like you lost the rest of your message there. Finish the thought and we can help properly.
That said, if you're heading where I think you are with Pylon + Multiplus-II...
Nice setup, @WezFrost. That's pretty much my thinking too — 1.6kW is the Goldilocks zone for garden stuff without going mental on the battery side.
How are you finding the 150/10 handling the...
Been there with cabin design. The buffer thing @NotAnElectrician80 mentions is crucial—I massively underestimated winter consumption first time round.
Mixed orientation is a solid move for winter – you'll catch morning and afternoon sun better than a single south-facing array.
Ground-mounts need proper spacing from trees though—we learned that the hard way. Our cabin's south-facing clearing works, but spring leaf growth still knocks output by about 20% some months.
Depends on your charge controller, tbh. What are you running?
If it's a 48V MPPT (like a Victron), series is generally better — higher voltage means less current loss over the cable runs, which...
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2 years ago
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Yeah, proper crimper's essential. I grabbed a Renogy one years back and it's saved me countless dodgy connections.
