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Had this exact drama with my static caravan setup last summer — Fogstar Drift cells, Daly BMS screaming 47% whilst the SmartShunt was sat there confidently telling me 71%, both of them absolutely...
Van Ken in Batteries & BMS 2 months ago
@SolarCol — classic Modbus TCP gotcha: unit ID matters enormously with the Cerbo GX. Unlike traditional Modbus where unit ID is often ignored, Victron's implementation routes to different devices...
Got a head-scratcher on the narrowboat — running a Victron Multi RS Solar with a Fogstar Drift 24V pack managed by a JK BMS, and I've just noticed the internal relay seems to be sitting open when...
WheresMeWires87 in Q&A 2 months ago
Been down this rabbit hole myself recently, so thought it'd be worth opening it up for discussion here. Running a Victron Cerbo GX in my van, I kept finding myself wanting to pull up battery...
@BordersExplorer is onto something important there. The other factor nobody mentions is ambient temperature — these cheap units have absolutely zero thermal management worth speaking of.
Forest Boater in On a Budget 2 months ago
Had a similar head-scratcher on my narrowboat build last year — picked up a secondhand Quattro 5000 that the previous owner had clearly been "having a tinker" with, bless him. The unit...
FETFan in Inverters & Chargers 2 months ago
Similar story from me — I had my Orion 30A tucked behind the cab seat panel on a long transit van conversion.
Solar Jason in DC-DC Chargers 2 months ago
@GoldenGaffer really interesting one this — I've been eyeing up the Truma Aventa for my motorhome build so watching this thread closely! Quick question though: have you checked your AC input...
@24VGeek interesting to hear the shepherd's hut angle — I'm running a similar setup in mine and have been wrestling with exactly this. Can I ask what panels you're running and what your actual...
Really interested in this thread as I've been weighing up the same question for my narrowboat setup. One thing I haven't seen mentioned yet — what's the actual battery chemistry you're charging...
ExJoiner in DC-DC Chargers 2 months ago
Been lurking on this thread for a while because I've got almost the exact same headache with a no-name 48V 100Ah pack I picked up off AliExpress last year.
George in Batteries & BMS 2 months ago
Has anyone tried using a SmartShunt alongside the JK BMS and just pointing the Cerbo at the SmartShunt for SOC whilst keeping the BMS connected purely for cell-level protection data? That's the...
Alan Palmer in Batteries & BMS 2 months ago
Had exactly this with my shepherd's hut setup last summer. Victron SmartSolar 100/30, Fogstar Drift lithium battery — kept hitting float after barely two hours of bulk charging.
Bit of an odd one this, and curious whether others running Pylontech with a Multiplus-II have seen similar. On my narrowboat I've got a Multiplus-II 48/3000 paired with 4x Pylontech US3000C...
Had the exact same issue on my narrowboat last summer — drove me absolutely mad for weeks before I tracked it down. First thing to check is your input voltage.
Rob Bennett in DC-DC Chargers 2 months ago
@FormerCop worth adding to what @RetiredEngineer86 is getting at about ambient temp — the other thing that catches people out is how full (or empty) the freezer is.
Chippy33 in Q&A 2 months ago
@MarineGaz that's the killer isn't it — once you've paid transatlantic shipping on kit that heavy, plus the 20% VAT and whatever HMRC decides to slap on top as import duty, you've likely wiped out...
Defender Life in General Chat 2 months ago
@GlenDoug has nailed the LVD angle, so I'll come at this from a different direction — the inverter's own temperature compensation. On my shepherd's hut setup, I had a Phoenix 375 doing exactly...
Also worth checking your grid code settings in VE.Configure — if you're on the wrong country profile (seen people accidentally left on "Other" instead of G98/G99) the Multiplus gets a...
ExPostie86 in Q&A 2 months ago
Done my garden office conversion in a stone outbuilding last year and honestly the floor was the game-changer nobody talks about. Walls and roof get all the attention but cold radiates up from an...
Breezy Sparky in Off-Grid Cabins 2 months ago