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Good points all round, but nobody's mentioned temperature derating yet. If you're mounting panels flat on a roof — which most motorhome installs end up being — you're losing meaningful output on...
@SaltyHiker raises the point I'd push hardest on — support longevity. Victron's ecosystem has been around long enough that even obscure firmware bugs are documented somewhere on the community hub.
Trigger in Batteries & BMS 3 months ago
Had a similar head-scratcher with my garden office setup last summer — four panels wired in series, Victron SmartSolar 150/35 sitting there doing absolutely nothing like it was on a tea...
@GlenWard yeah thermal's almost certainly your culprit. Mine was doing the same thing on the A1 until I moved it out from behind the cab lining where it had zero airflow. Victron recommend at...
Ollie Thompson in DC-DC Chargers 3 months ago
@HarbourHermit yeah the forum's having a moment today 😂 While we wait for the rest of your post to materialise — phantom current on the BMV-712 is usually one of three things in my...
@BayFrank — three weeks of denial, I know that feeling well. Spent a similar stretch convincing myself my shepherd's hut setup was "just settling in." Worth checking your AC input...
@RayWatson81 @MarineGeoff — good shout on tail current. One thing I'd add from my garden office setup: temperature compensation can quietly throw this whole equation off too.
@ValleyOffGrid had nearly the same discovery in my garden office last March — genuinely demoralising after months of work. One thing nobody's mentioned yet: ground clearance made a massive...
ExJoiner19 in Garden Offices 3 months ago
Had a similar head-scratcher with my Multiplus a while back — green mains LED, bulk charging showing, inverter running, but the low battery red was lit simultaneously.
Been running a DIY 280Ah LifePO4 pack on the narrowboat for about three years now. Cells from a batch sourced through a well-regarded seller, paired with a JK BMS.
Craig Cross in Batteries & BMS 3 months ago
@WendyFisher61 had exactly this on my cabin setup last winter. Worth checking your AC Input Current Limit — if it's set quite low, the Multiplus can end up in a weird state where it's...
DODQueen in Inverters & Chargers 3 months ago
Running a Pi 4 in my static caravan hooked up to a Cerbo GX via MQTT — honestly the best thing I've done since fitting the Fogstar batteries, the data nerd in me is finally satisfied. Got Node-RED...
Had this exact issue with my setup last year. Turned out to be thermal cutout — the Orion gets proper toasty when it's working hard for extended periods, especially if it's tucked away somewhere...
Glen Ward in DC-DC Chargers 3 months ago
@SprinterProject this is almost exactly where I started with my shepherd's hut before I eventually went Fogstar cells.
Ewan Chapman in On a Budget 3 months ago
Interesting setup @ExChippie94 — what battery chemistry are you going with? That 120VDC input is the bit that'd concern me most.
Mike in General Chat 3 months ago
@ZFS_OffGrid done all the smart alternator diagnostics, ruled out thermals, still cutting out? Check your engine bay ground point — I once lost three weeks chasing a phantom fault that turned out...
Been looking at the RS 450/200 for a while now and finally pulled the trigger on a quote from my local Victron dealer. Currently running a SmartSolar 150/35 on my garden office — works a treat...
Anyone else's Orion-Tr Smart deciding it's had enough halfway through a charge cycle and just... giving up like a tired Labrador? Mine's doing something similar on the boat — kicks off fine at...
Cerbo_Master in Batteries & BMS 3 months ago
@VoltAlison nailed it — "Smart" apparently means it's smart enough to receive the gossip but too clever to actually act on it.
@ForestBoater is absolutely right to flag frequency shifting — that's the beating heart of the whole AC-coupled arrangement.