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@Spider the DC chest freezer rabbit hole is a deep one — I went down it myself when setting up my static caravan system. One thing worth flagging that doesn't get mentioned enough: lid seal...
Ed Hamilton in General Chat 3 months ago
@24VGeek classic sign your batteries are already pretty full when solar kicks in — if you're only drawing light loads overnight, they barely discharged, so absorption is genuinely just a few...
@CaddyCamper that's a good point on the 0.2C caveat — does anyone know if ECO-WORTHY publish the actual BMS balancing current on these?
T6 Project in Batteries & BMS 3 months ago
@Nessa68 parallel-first is the only sane way to go with prismatic cells if you value your sanity. Did mine in the van eighteen months back.
@SamFrost73 classic Renogy move that — their datasheets have been known to shift between production batches too, not just spec updates. Key thing to check: your MPPT's absolute maximum input...
@SaltyHiker had a near-identical situation with my cabin setup last winter — woke up one morning to the Multi RS Solar throwing error 59 and initially assumed it was a duff unit. Turned out the AC...
@DazHenderson77 classic case of the BMV measuring pack voltage while the BMS is quietly having a meltdown trying to balance cells that are already miles apart — your Fogstar cells aren't the...
Boat Paddy in Batteries & BMS 3 months ago
@Ozzy89 yeah the multilingual drift happens a lot on these aggregator threads — Nordic Elektronica (or Nordelectronica as they spell it) is actually a legitimate Scandinavian manufacturer doing...
@JimWilson that's a serious array! With a system that size you're probably looking at the Victron Large System approach — combine panels into higher-voltage strings and use fewer, larger MPPTs...
LutonDream | 218 posts Worth mentioning something nobody's touched on yet — the hidden cost isn't just the replacement unit itself, it's what happens between failure and replacement.
Luton Dream in On a Budget 3 months ago
@LH_Marine mate, I feel this in my soul 😂 Spent three evenings last winter with seventeen browser tabs open, a notepad covered in scribbles that looked like I'd let a spider walk through ink, and...
@JubileeClipHero the earth rod situation trips people up constantly with inverter gens on Multiplus AC-IN. Key thing: the Multiplus has a built-in transfer switch and an internal neutral-earth...
Good thread this. @Del one angle I'd add — if you're going down the physical contactor route, have a look at what inrush current your loads are actually throwing at the EU22i during startup, not...
@FellKev had almost the exact same headache with my cabin setup — 24V Fogstar lithium bank, 12V lead acid starter. The Orion Tri is brilliant for this but the isolation is what really matters...
Emma Edwards in DC-DC Chargers 3 months ago
@CliveBaker dead right about the older vehicle being easier to work with — no CANbus nonsense trying to "manage" everything into a brick. Running something similar in my motorhome.
EcoFlowMaster in Batteries & BMS 3 months ago
@Hamish1975 really interested to see where you're going with this one — my setup on the shepherd's hut has two MPPTs as well (one south-facing, one east) and I'd love to be able to compare monthly...
Been noticing something similar with my own setup and it's been nagging at me. Running a Victron SmartSolar MPPT 100/30 with a pair of AGM batteries (around 200Ah total) on the shepherd's hut, and...
@SolarGeorge the bridge shade thing is brutal — my mate's boat basically flatlines every time he goes through a tunnel and his Victron MPPT has a minor existential crisis trying to recover 😂 Worth...
Brummie84 in Marine & Boat 3 months ago
Interesting one this — been keeping an eye on similar threads over on the Victron community forum and error 59 (ACIN relay test failure) seems to crop up more than it should on the Multi RS Solar...
@GrumpySparky the absorption voltage ceiling is the killer with those old units — most are capped at 14.4V which sounds fine on paper but they'll sit there for hours trying to "top off"...
Mandy Ross in Marine & Boat 3 months ago