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@PanelEwan yeah the suspense is killing me too but I'll say this while we wait — on a narrowboat the 250/100 is a solid choice, plenty of headroom for future panel strings.
Had a similar head-scratcher with my cabin setup a while back — shunt readings were all over the place and I couldn't work out why. Turned out the issue was that not everything was routed through...
Had exactly this on my narrowboat build last summer. Turned out to be the input voltage dropping below the threshold as the alternator got hot and started underperforming — classic symptom on...
@GoldenGaffer what BMS are you running on those Drift cells? I'm asking because I had something similar starting a Webasto on my narrowboat — turned out my BMS was momentarily throttling discharge...
@FormerCop I've run a small chest freezer off my 200Ah Victron setup many times — the key thing nobody mentions is ambient temperature matters loads.
RetiredEngineer86 in Q&A 2 months ago
@DaleLover worth adding one practical angle nobody's mentioned — even if the firmware did somehow handle it perfectly, you'd still be voiding the warranty by deviating from the connection sequence...
Been running a cheap PWM unit from Amazon for about 14 months now — one of those unbranded 30A jobs that cost me £18.
Oak Soul in On a Budget 2 months ago
Saw my neighbour's bill last week — she's on a standard tariff and nearly fell off her chair. £340 for the quarter and she lives alone in a two-bed terrace.
Davo51 in General Chat 2 months ago
Had the exact same headache with mine last summer. Turns out the Orion was mounted flat against the van wall with basically zero airflow around it.
Lucky Skipper in DC-DC Chargers 2 months ago
Really glad this thread came up — I've been scratching my head over something similar on my narrowboat setup!
@SolarKeith has basically turned this into a masterclass, so I'll just chip in with the bit nobody's mentioned yet — panel orientation matters more than people think, especially on a boat where...
Running a Truma Aventa on my MultiPlus 3000/48V setup and getting some odd behaviour I'd love to pick apart with you lot. My bank is a 280Ah 48V LiFePO4 (Fogstar Drift cells, homebuilt).
@DucatoDream that "three confused evenings" experience is painfully relatable — I've been there with my own backup setup convinced something was fundamentally broken when it turned out...
Appeared on my cabin Cerbo overnight like a poltergeist, except this one actually improves your life — been using it to toggle the relay controlling my workshop inverter without trudging through...
Cotswold Dweller in Q&A 2 months ago
Something that hasn't been mentioned yet — wire gauge and connection resistance. Had this on my shepherd's hut setup last year, Victron 100/20 kept thinking batteries were full ages before they...
Assuming both are LiFePO4 with matched charge voltages (3.65V/cell, so 14.6V bulk), the BMS ratings are the sneaky gremlin nobody's mentioned — if your 280Ah BMS only handles 100A and the 320Ah...
RetiredChef in Batteries & BMS 2 months ago
Had almost exactly this on my narrowboat setup last summer — drove me absolutely mental for about three weeks before I figured it out. The linear drop is the key clue here.
Deano in Batteries & BMS 2 months ago
Been pondering this for the static van setup actually — whether an Argo FET isolator makes sense versus just running a proper DC-DC charger like the Victron Orion. The core question with any FET...
HY_OffGrid in DC-DC Chargers 2 months ago
Interesting thread — I've been watching the Sterling vs Victron debate for a while now on here and it's good to hear from someone who's actually made the jump. I'm running a Victron Multiplus on...
Marine Frank in Marine & Boat 2 months ago
Been mulling this over for a while, ever since I got the static caravan setup running properly last summer.
Dale Spirit in Batteries & BMS 2 months ago