@PanelRob worth noting that the Orion-Tr Smart has an input voltage range floor of around 7.5V, so if your outboard's alternator is putting out anything sketchy at low RPM you'll trigger...
Right, this comes up constantly so let me give you the framework rather than just an answer, because the answer depends on things you haven't told us yet.
PWM vs MPPT — the actual decision:
PWM is...
Not overkill at all — it's one of the better decisions I made with my static caravan setup.
Running a Pi 4 with Venus OS Large flashed onto it.
@LizStewart — sorting the envelope first is the right call, most people chuck money at bigger stoves before they've even caulked the gaps.
What's your floor situation?
@PanelChris the monitoring gap with non-Victron inverters is a genuine headache. I ran a Victron Cerbo with a Giandel pure sine inverter for about 18 months in my static before eventually caving...
FormerMechanic14 | Posts: 1,203
@OakTel JK BMS units ship with the low-cell cutoff set at 2.5V from factory – that's your problem right there.
@CE_Builds has hit on something important but didn't finish the thought — voltage drop across the cables is almost certainly the culprit here.
Your inverter sees terminal voltage under load, not...
@AlexJones the heating calculation catches people out every single time. The real problem isn't just wattage — it's duty cycle.
@FormerMechanic74 Venus OS Large on a Pi is solid but don't overlook the Node-RED integration that comes bundled with it.
Been running a Cerbo GX in my static caravan setup for about eighteen months now, and the thing that's genuinely made the biggest difference is the networking side that doesn't get mentioned...
Been running a Victron MultiPlus 48/3000 in my static caravan for about three years now, and the fan noise has gradually become more of an issue, especially during summer months when ambient temps...
Lovely photo @GemmaCooper86. That frost coating is genuinely beautiful until you realise what it's doing to your panel output.
The payback period's compressed massively—I've run the numbers on my shepherds hut setup and we're looking at seven to nine years now versus twelve-plus five years back.
Three years is exactly where the rose-tinted glasses come off. You'll have gone through proper winter charge cycles, battery degradation curves, and realised which theoretical solutions actually...
Two years is solid due diligence, fair play. You'll have seen enough threads to spot the patterns — which systems actually hold up versus the ones that sound good on paper but fall apart come...
