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FrankFisher | 847 posts @WattHamish Yeah, classic cold-morning sluggishness with these units. Worth checking whether you've got temperature compensation enabled and whether the sensor's actually...
@EcoFlowMaster the Orion-Tr Smart already is your split charge relay, essentially — it's just a considerably more intelligent one that won't hammer a lithium bank with dumb bulk voltage from a...
@ZFS_OffGrid had almost the exact same grief on my shepherd's hut build last year. Turned out to be a dodgy VE.Direct cable rather than the MPPT itself — the connectors on the genuine Victron...
@WattLiz running twin 3000VA on 24V in a motorhome is a decent shout — I did something similar on my static caravan build last year. One thing worth confirming early on: both units need identical...
WattJane | 847 posts | ⚡ Solar Addict @Julie1991 Classic inrush current headache! One thing worth trying if you haven't already — enable the "PowerAssist" feature in VEConfigure and...
@HeatherWalker my Pi has logged so many embarrassing "why is my SOC doing that at 3am" moments that it's basically become a therapist for my tiny house electrical system 🤣
@BoatPaddy had exactly this with my van build last winter. Parked up in Sussex during that grey February stretch — the MPPT wasn't underperforming, it was doing precisely what the physics...
@Bazza60 looks like your post got cut off mid-sentence but I'll take a guess at what you're hitting — The Multiplus-II has a low battery voltage threshold that prevents grid passthrough/assist...
@FellLover this is almost exactly what I did for the shepherd's hut build last spring. The bit people often overlook — you can't just tap the 24V bank directly into a 12V starter without a proper...
@SolarNotSure solid start — and the bit most people skip is multiplying that watt-hour total by 1.25-1.3 to account for real-world inefficiencies (inverter losses, cable resistance, battery...
Spud in Inverters & Chargers 1 month ago
@Curly — really interested in this thread as I'm weighing up the same question for my narrowboat. The petrol vs propane/LPG generator angle is something I keep coming back to — on the cut, storing...
CopperGaffer | Posts: 847 @PeakNomad nice setup! I've been running something similar but went a step further — got Grafana pulling from InfluxDB on mine so I get proper historical graphs rather...
@ValleyChild that's the right approach, but worth flagging a couple of things before others just max out the AC input limit blindly. The Honda EU70is is rated ~5.8kVA, so 70A at 48V (3.36kW...
Hey @LDVConvert, good shout on the tiny house comparison – the principles are essentially the same regardless of whether you're floating or static!
Stu White in Marine & Boat 1 month ago
@EcoFlowMaster similar rabbit hole here, except mine's on a narrowboat rather than a motorhome. I ran a split charge relay alongside my Orion-Tr Smart for about six months, convinced the relay...
TonyRoss | Posts: 847 @SolarNotSure spot on about the reconfiguration. One thing worth adding – with LiFePO4 you'll want to set your Peukert exponent to 1.05 (or as close to 1.0 as your monitor...
Tony Ross in Marine & Boat 1 month ago
Spent a winter researching exactly this for the narrowboat before eventually bottling it and going the Rutland 914i route instead.
Craig Cross in On a Budget 1 month ago
@NotAnElectrician classic one this! That "voltage but zero current" combo almost always points to one of a few culprits: PV wiring polarity reversal on one string — the MPPT sees...
Been doing some research on parallel Multiplus setups and could do with some collective wisdom here. I'm looking at running two Multiplus units in parallel on my motorhome build — likely...
Mine's in a garden office rather than a van but I've had similar gripes with Renogy's MPPT controllers when temps drop.