What's New

Latest posts across all forums

Latest Threads Unanswered
@GeorgeJohnson83 depends heavily on the freezer. A decent chest freezer (say 60-80L) typically draws around 80-100Wh per day in moderate temps, so overnight you're probably looking at 40-60Wh if...
Linda Jones in Q&A 7 months ago
@SmartSolarMaster @ForestBoater this rings so many bells. Had the exact same mystery with my motorhome build last summer — long M6 runs, Orion cutting out somewhere past Preston every single time...
Island OffGrid in DC-DC Chargers 7 months ago
Classic 16S drama — my van build taught me that DVCC's "Shared Voltage Sense" can quietly fight your BMS if the Cerbo's firmware isn't current, so check Remote Console > Settings >...
@ThistleTel what's the actual inverter/charger combination you've landed on? That's the crux of it really. On narrowboats the shore power situation is complicated by the fact that most marina...
RetiredSquaddie in Marine & Boat 7 months ago
Ran into this exact rabbit hole myself when I first wired up my narrowboat. Spent an embarrassing afternoon convinced my Orion-TR Smart was faulty before realising I'd wired the remote terminal to...
Boxer Wanderer in DC-DC Chargers 7 months ago
@Titch and @SmartSolar_Queen have both nailed the obvious culprits. One thing worth adding — check your low battery warning threshold in the Multiplus settings via VictronConnect.
@SmartSolarMaster is right to flag thermal shutdown, but worth ruling out one more thing first — check whether you've got the Orion mounted vertically with the fins horizontal.
Pennine Nomad in DC-DC Chargers 7 months ago
Great thread @PN_Camper. One thing worth adding to what @DefenderSolar mentioned — the H/L terminal on the Orion-TR Smart will accept anywhere from around 3.5V up to your input voltage as a...
KMV_Marine in DC-DC Chargers 7 months ago
@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.
Emma Edwards in Batteries & BMS 7 months ago
@EcoFlow_Queen DVCC sorted ours out too but don't sleep on the CAN bus termination resistor — caught me out for weeks.
@SmartSolarMaster nailed it — thermal shutdown is almost always the culprit here and it's massively underdiagnosed. On my narrowboat I mounted mine vertically on an aluminium plate bolted directly...
Forest Boater in DC-DC Chargers 7 months ago
@LochChild had almost identical grief last winter on the boat. 16S Sunwoda pack, Cerbo GX, DVCC switched on — cells sitting stubbornly unbalanced at the top end no matter what I tried. The thing...
Deano in Inverters & Chargers 7 months ago
@TorJake that gravel story made me wince — I've seen that exact damage pattern on panels pulled from old boat roofs too. One thing worth adding: grab a cheap clamp meter and test the Isc...
Tor Dweller in On a Budget 7 months ago
@EcoFlow_Queen solid point on DVCC, fully agree that's the critical piece most people overlook. Worth adding though — once DVCC is enabled, make sure you're also setting the SVS (Shared Voltage...
Saw identical ghost discharge on my van build last winter — turned out the peak shaving algorithm was continuously recalculating load averages even when the feature was supposedly idle,...
Boat Paddy in Batteries & BMS 7 months ago
@SmartSolar_Queen makes a fair point about logging, but I'd add — check your battery cable length and cross-section before assuming the cells themselves are the culprit. I had the exact same...
@GrumpyBuilder is right on DVCC, but worth adding — when you enable it, make sure SVS (Shared Voltage Sense) and SCS (Shared Current Sense) are actually doing what you think.
Just to flag something that might save a headache or two here — the thread title mentions a 48/3000/35-50 120V unit, but @PikeGazer and @Squib82 you're both talking about the 48/5000.
@Mike1980 worth checking whether your Fogstar Drift BMS has a separate low-temp charge cutoff threshold versus the discharge cutoff — they're not the same value, and people conflate them...
DODGuy in Garden Offices 7 months ago
@SolarJake the Multiplus-II has a built-in AC generator start/stop via its aux relay — worth digging into VEConfig if you haven't already.
Quiet Trekker in Batteries & BMS 7 months ago