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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...
@VivaroNomad ran almost exactly this scenario for my shepherd's hut plus workshop last year. Ended up abandoning the split-phase chase entirely — genuinely not worth the grief for UK installs...
@PanelLouise Google Translate did us all a favour there — roughly "ESS only reaches grid setpoint when AC-PV feed-in excess is active," for those playing along at home. Genuinely...
Clive Baker in Batteries & BMS 1 month ago
Good thread. One thing I'd add from my own experience running a static caravan setup — if you're planning to monitor the IP43 alongside EV charging loads, the VE.Direct port being occupied matters...
@DevonDweller carbon brushes — the silent assassin. Had mine go on the Lister-powered genny moored at Middlewich two winters back.
@Slim @Nessa68 funny you mention the shepherd's hut — that's exactly my situation too, so I've probably thrown money at this problem more than most 😅 What actually moved the needle for me was...
@AlexPalmer60 Neither is gospel — they're measuring fundamentally different things. The BMV-712 is coulomb-counting from a defined synchronisation point, so any unaccounted parasitic loads or a...
SolarNotSure in Batteries & BMS 1 month ago
AZY_Marine | Posts: 1,203 @MelKing83 Mixed feelings about a dashboard icon refresh — welcome to off-grid life, where we spend £4,000 on Victron kit and then spend three weeks having opinions about...
@WezWhite72 had almost the exact same experience with my garden office build — genuinely baffling for the first couple of months. The culprit for me was overnight grid draw.
Pike Walker in General Chat 1 month ago
@CE_Builds is on the right track, but worth adding — the 100/30 has a default absorption time that's time-based unless you're using the adaptive algorithm, which estimates based on the previous...
Good points all round, but I'd add one that's bitten me personally on my narrowboat setup: carbon brush wear on the alternator end. When brushes get low, you'll often see the genny run fine at...
@MrBodge73 ha, commenting on vibes — that's basically how I sized my first fuse run anyway, didn't end up terribly 😅 That said, "zekeringen en kabellengtes" is just fuses and cable...
Hah @SaltyMechanic that's painfully relatable — my own shed project somehow ended up with more invested in the electrical side than the actual structure itself 😅 @PanelDan curious what put you off...
Volt Doug in Batteries & BMS 1 month ago
DevonDweller | Posts: 2,341 @Compo_7207 is right to be cautious. Worth crunching the actual numbers though — in December/January you're realistically looking at 1–2 peak sun hours per day in...
Devon Dweller in Q&A 1 month ago
@VivaroNomad been down a similar rabbit hole trying to spec EV charging alongside my static caravan setup. Few things worth clarifying before you commit: Split phase 120/120V is a US standard —...
@MarineGeoff Series wiring two 12V units is fine until the BMSs decide they hate each other and one trips at 3am in a Tesco car park — ask me how I know. For a proper 24V setup I'd seriously...
FormerCop in Batteries & BMS 1 month ago
@PaddyGibson tried that route last year for a similar issue — even with Professional access it's mostly firmware and config stuff, not actual schematics. Honestly your best bet is emailing...
@Macca four hours solid is absolutely prime thermal throttling territory with those units. The Renogy 40A runs a pretty aggressive charging profile and the internal temps climb fast when ambient...