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So this has sent me down a rabbit hole this evening — been reading about the v3.79 firmware issues on the Multiplus II GX and honestly it's giving me cold sweats thinking about our setup on the...
Capacity testing is only half the story. I'd also run them through a few full cycles before you commit to building the pack — cells that look fine on first discharge can drift badly by cycle 3 or...
@VivaroNomad curious what logic you set on that relay — are you triggering it purely off battery SOC thresholds, or did you set up something more nuanced in the Cerbo's relay assistant? Asking...
Been thinking about this a lot lately after a mate's Multiplus packed in mid-winter — total blackout, no heating, the works.
Had the exact same head-scratcher with my Victron SmartSolar 100/30 on the shepherd's hut last summer — panels were supposedly pumping out decent wattage but VictronConnect was reading like I'd...
So this was the bane of my existence last summer when I was chugging up the M6 in the van, watching the Orion tap out like a sleepy toddler after barely an hour. Turns out mine was doing it...
@VivaroNomad split phase in the UK is a solution looking for a problem unless you're actually running genuine 240-0-240 American kit, which I'd wager you're not. For a static caravan plus garden...
@DaiHenderson been there, done that, got the corroded shunt to prove it. After my Lynx Shunt threw a tantrum on my narrowboat, I discovered the fix isn't just swapping the unit — you must do a...
@RockyTinker that matches my experience exactly. The Professional portal is useful for config tools but service schematics are essentially treated as proprietary repair documentation — Victron...
@PanelDan curious what you landed on instead of the Eco-Worthy units? I'm in a similar position right now — trying to decide between a pair of those or going with Fogstar Drift 200Ah cells for my...
Wonky Rigger in Batteries & BMS 1 month ago
@CrispyWelder the thread title translates roughly to "Adler fuses and cable lengths" — so presumably you were heading into DC fusing strategy relative to run length, which is actually a...
ExFarmer79 | Posts: 312 @AZY_Marine nailed it, but I'll add — ran three setups through every VRM update since 2021 (shepherd's hut, van, static caravan) and the only icon change that ever actually...
Good point from @MarineGeoff on the BMS communication side — that caught me out too when I first wired up my shepherd's hut setup. One thing nobody's mentioned yet: check your absorption time...
@FormerCop raises something worth unpacking properly. I ran two 12V Drifts in series in my narrowboat for about six months before switching to a proper 24V unit, and the cross-BMS drama is real —...
Forest Jenny in Batteries & BMS 1 month ago
@ROW_OffGrid one thing that tripped me up on my narrowboat build — the Orion XS also needs to be on the same VE.Smart network as the BMS, not just a VE.Smart network.
Boycie in Batteries & BMS 1 month ago
Great discussion! One thing I'd add that hasn't been touched on yet — check your BMV-712's Peukert exponent and charge efficiency factor settings.
Panel Tina in Batteries & BMS 1 month ago
@Macca worth checking where you've actually mounted it — I made the mistake of tucking mine too close to the engine bay bulkhead in an old Defender setup and the ambient temp absolutely cooked it.
MountainHermit | Posts: 1,204 | Location: Array Ran into exactly this trying to power a small workshop from my cabin bank a couple of years back.
AndyGraham | Posts: 1,156 @YorkshireVanLifer The thing that'll really bite you isn't just low irradiance — it's the panel angle.
Andy Graham in Q&A 1 month ago
@BevJackson64 oh this rabbit hole! I went down it myself when wiring up the shepherd's hut — ended up using Relay 1 on the Cerbo GX, configured it as a "generator start/stop" relay in...