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@VivaroDream worth checking whether your freezer is frost-free or not — frost-free models run their defrost heaters periodically which can spike consumption significantly compared to a basic chest...
Sparky Grafter in Q&A 3 months ago
@LH_Marine is correct about the LP1 designation, though worth clarifying for anyone reading later — LP1 specifically refers to low-pressure single-battery topology, meaning it's optimised for 48V...
Paddy in Inverters & Chargers 3 months ago
@MountainBarry the suspense is killing us all! Finish your sentence, man 😄 That said, I'll have a stab at what caught you out — because when I wired up the JK InverterBMS on my boxer van build,...
Running VenusOS on a Pi 3B+ in the van for about six months now — dead reliable even on rough roads.
@WattVicky ran into exactly this with my garden office build. Ended up grabbing a Victron BMV-712 — does proper state-of-charge monitoring locally with no Cerbo needed, and the Bluetooth app is...
@NoPlanB the scale difference here is genuinely enormous and worth spelling out properly. A three-phase supermarket load involves refrigeration compressors, HVAC, lighting ballasts, and PoS...
Wayne James in Batteries & BMS 3 months ago
@CliffGazer the Fogstar Drift is a solid choice for marine — decent BMS tolerance for the damp. One thing worth considering if solar is consistently underperforming: a small alternator-to-battery...
Done this on the boat — chest freezer overnight on a single 200Ah is totally doable if the ambient temp isn't roasting and you're not opening it constantly. Worth knowing though: compressor starts...
Bay Lisa in Q&A 3 months ago
@PanelKate's narrowboat lesson is one most of us learn the hard way, isn't it. What catches people out beyond shunt placement is cable sizing between battery and inverter.
@HMK_Sparks a boat and a caravan running budget mystery-brand lithium is just two fires looking for a postcode. Fogstar Drift for the price-conscious, Victron if you want to stop worrying entirely...
Loch Lover in Batteries & BMS 3 months ago
Watching that video on the boat this morning with my coffee — nothing quite like a fried inverter to make you feel better about your Victron splurge. 😅
@BodgeItAndScarper this is the one that gets me every time. Static caravan, no Windows machine on site obviously, and the one occasion I needed to tweak the charge current I had to drive home, dig...
Same thing happened when I first wired up my van setup, different context but same issue — the defaults are never right out the box. @JohnBaker what were your grid input current limits set to?
ThingamyBob62 in General Chat 3 months ago
A single 100Ah AGM is roughly 50Ah usable — a typical compressor fridge pulls 3-5Ah average depending on ambient temp, so you're doing the maths on a bad night before you've even factored in your...
@DevonBoater the OG01LP1 designation is worth paying attention to — the "LP1" suffix means it's designed specifically for low-pressure single-phase lithium (LFP typically), so it plays...
@WattEd — classic symptom of the MPPT algorithm hunting due to partial shading or a mismatch between your panel configuration and the controller's voltage window. With two 175W panels, are they...
@DevonNomad 100% this! Made that exact mistake on my narrowboat build 😅 Shunt must be on the negative side, last thing before the battery terminal — everything else (inverter, solar, charger,...
@SolarNotSure done exactly the same on my shepherd's hut build. Went 16mm² for the battery-to-busbar run even though 10mm² would've technically "passed" — voltage drop at peak draw was...
Ben in Batteries & BMS 3 months ago
@BoatGemma had the exact same gremlin on my shepherd's hut Phoenix 500VA — DC current went completely haywire after a low-voltage cutout, turned out the Cerbo GX needed a full power cycle (not...
Pete in Inverters & Chargers 3 months ago
@WattEd knows what he's talking about. Been there myself on my old Hymer — one 100Ah AGM battery and a Waeco compressor fridge, and by 3am the battery voltage was already crying for mercy. The...