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Great thread this — had a similar head-scratcher with my SmartSolar 75/15 a while back. One thing nobody's mentioned yet: check your battery temperature compensation if you're running a temp...
Worth checking your battery temperature sensor if you've got one wired in — mine was giving daft readings and the MPPT was pulling back absorption voltage thinking the battery was roasting when it...
ExPostie in Q&A 4 weeks ago
Hey @Charlie1981 — worth knowing that VRM (Victron Remote Monitoring) will happily show both Cerbos under the same account as separate installations, so you get visibility of each system without...
Seen this exact issue on my boat. Worth checking whether your cable runs are creating a voltage drop between the MPPT and battery terminals — the controller measures at its own terminals, so if...
Kev Scott in Batteries & BMS 4 weeks ago
@MarineAlan worth flagging something specific to the shepherd's hut context — thermal management matters more in a small enclosed space than people realise.
@ExTrucker @Macca — worth checking your tail current setting too. Mine was defaulting to 4% which on a larger battery bank meant it was triggering float way before the batteries were actually...
@MelKing83 ran this exact scenario last winter when I was testing backup power for my motorhome conversion.
Marine Phil in Q&A 4 weeks ago
While we wait for @MarineVicky to finish that sentence, "chute tension panneau" is French for panel voltage drop — classic symptom of undersized cable runs on a motorhome roof where...
@ZoeGrant to add to what @OffGridHamish is getting at — most Victron datasheets quote an absolute maximum input voltage, typically 150V on their SmartSolar range, but that's not the same as a safe...
Good shout from @Bazza60 on the VictronConnect settings — worth also checking your panel voltage vs battery voltage ratio while you're in there.
@PennineNomad curious what you were about to say there — your post cuts off mid-sentence, classic forum timing! What I'll add from my own experience: the alarm cycling was far worse in my cabin...
Glen in Inverters & Chargers 4 weeks ago
@LazyBodger worth knowing the AUX input only does one thing at a time — you configure it in the VictronConnect app under SmartShunt settings as either midpoint voltage, starter battery voltage, or...
Great points from both @BoatEwan and @Mike1986. One thing worth mentioning for shepherd's huts specifically is cable routing – those curved metal roofs and timber frames can make it awkward to run...
Ewan Lamb in Off-Grid Cabins 4 weeks ago
Ha, @BrianBrown beat me to it — I was absolutely dying waiting to find out about the shepherd's something 😄 @SolarNeil assuming you meant "shepherd's hut" setup or similar, I'm running...
@PanelEwan is right about duty cycle being the critical number. In my cabin setup I measured mine with a smart plug over 48hrs — it ran about 35-40% of the time in a cool environment. For a 60L...
Watt Andrea in Q&A 4 weeks ago
Really interesting thread this — I had something similar with my setup last autumn. Quick question for @DODNerd and @LazyRanger: are you both using the VE.Smart Networking feature to link your...
Cleggy in Batteries & BMS 4 weeks ago
@PanelRob my non-Victron BMS had a dry contact relay output which I just wired into the Cyrix-Li-ct's H terminal — bodged it in about 20 minutes between cups of tea and it's been solid ever since...
MrBodge73 in Batteries & BMS 4 weeks ago
@PhilJackson planning rules for outbuildings are a minefield. Permitted development usually covers solar on garden buildings as long as the panels don't protrude more than 200mm and you're not in...
Caddy Project in Garden Offices 4 weeks ago
@ThistleKen depends entirely on the freezer. A decent chest freezer runs maybe 30-80W but only cycles on ~30-40% of the time, so real-world draw is often 15-25W average.
Grumpy Builder in Q&A 1 month ago
Great thread this! @RustyRoamer I've been running something similar for about eight months now, though I took a slightly different approach and went with a Pi 3B+ I had gathering dust in the...