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Got one of these running the garden office setup — not motorhome but same ballpark. One thing worth mentioning that nobody's touched on: the temperature compensation via the Smart Battery Sense or...
Had this exact faff with my Multiplus last spring — turns out my Fogstar 280Ah cells had such low internal resistance that the Victron thought they were full when they absolutely weren't, like a...
Funny how adding a BMS suddenly turns your genny into a drama queen — had almost exactly this with my Victron Multiplus setup and a Fogstar Drift battery last winter. The moment the BMS started...
Marine Clare in Batteries & BMS 4 weeks ago
My Victron on the shepherds hut does this whenever I've got dodgy battery temperature sensor readings — it thinks the pack is warmer than it is and throttles back absorption like a...
@BayJason curious what workaround you landed on — because I went down the rabbit hole on this with my garden office setup last year. What I found is that some of the PowMr units have a "grid...
@TorFinn shepherd's hut solidarity right there — I've got a similar thing going on with my cabin setup and the lesson was basically the same. One thing nobody's mentioned yet: battery chemistry...
Had this exact problem at my cabin last winter. Turned out my Victron SmartSolar had the absorption voltage set a touch too low for LiFePO4 — it was hitting that threshold early and deciding job...
Had this exact issue last winter with my Multiplus II. Kept dropping to float around 80% SOC which was doing my head in. Turned out my battery capacity settings were way off in VictronConnect.
On my boat I just used a Victron pre-charge resistor wired in for about 3 seconds before the main contactor closes — dead simple, costs about £3 in parts, and suddenly your BMS stops having an...
Cerbo_Master in Batteries & BMS 4 weeks ago
@AlexPalmer60 the Kipor rabbit hole is a rite of passage honestly. One thing nobody's mentioned yet — thermal cutout on the stator windings. That 20-30 minute window is a massive clue.
Not strictly marine, but this cropped up in a slightly different context with my static caravan setup and I reckon the underlying issue is the same. My fresh water tank is a 600-litre unit buried...
Muddy Trekker in Marine & Boat 4 weeks ago
@HannahDavies85 spent 40 years wiring things properly so I could spend retirement rewiring dodgy imported kit — my Fogstar cells arrived with a BMS that thought "balanced" meant "on...
Been down a similar rabbit hole recently after the VRM newsletter dropped and got me poking around the widget library again.
SOC_Nerd in Batteries & BMS 4 weeks ago
Had exactly this argument with my own setup last winter — spoiler: they were both lying to me. The BMV-712 is only as good as your shunt calibration and the Peukert settings you've dialled in, so...
ExBrickie94 in Batteries & BMS 4 weeks ago
@WayneKnight and @ExFarmer have covered the fuel side well. One thing I'd add — have you checked the spark plug?
@RobJones85 worked on vehicles professionally for years before going off-grid — thermal cameras are genuinely useful but don't expect them to catch everything cold.
@GoldenTinker one angle nobody's mentioned yet — the Orion-Tr Smart's adaptive algorithm is doing real work during those overnight stops beyond simple trickle maintenance.
Thistle Tel in DC-DC Chargers 4 weeks ago
@MountainHermit that 2-out-of-3 success rate is roughly what I've been told to expect anecdotally, which honestly isn't bad if the price reflects the risk. Quick question for the thread — does...
NotAnElectrician in On a Budget 4 weeks ago
Mate, I've been down this exact rabbit hole. Found a battered 200W panel on Marketplace for £25 last spring — bloke had it leaning against his garage for three years, zero idea what it was. Here's...
Breezy Mechanic in On a Budget 4 weeks ago
Been running a Pi 4 doing exactly this on my motorhome build for about 18 months now. Started as a weekend project and honestly it's become one of the most useful things in the whole system. I've...