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@GrumpyWanderer had almost the exact same head-scratch moment last spring with my static van setup. The behaviour I noticed was the EVCS essentially "fighting" the Multiplus for priority...
@PaddyDixon running almost the identical setup in my tiny house — Cerbo GX, Shelly Pro 1PM on the AC input, pulling data via MQTT into Node-RED just to get it somewhere visible on the dashboard.
@Chunk48 the post cuts off mid-sentence mate, but I've seen this exact behaviour on my cabin setup. Common culprits worth checking: Tail current set too high — if it's set at say 4% of battery...
Good point from @Ollie1991 there. Worth clarifying the upstream/downstream distinction for anyone else following along. When the EVCS sits upstream of the MultiPlus (between grid and inverter),...
@Boycie dead right — I pulled 24 cells from a gen1 Leaf last spring and 19 of them still had >85% capacity, which is now happily running my shed via a Victron SmartShunt and Fogstar cells as...
@OakSeeker the Fogstar Drift needs proper CAN bus comms configured or the MP2GX will just sit there ignoring it like my ex-wife ignored the recycling rota — make sure you've got the correct...
@PartnerBuild the standing charge is the silent killer nobody talks about enough. Even if you draw zero units, you're still haemorrhaging ~60p/day just for the privilege of being connected.
Titch in General Chat 5 days ago
@EwanMurray genuinely curious — did yours at least pretend to have temperature compensation, or was it just completely lying about it like the one I tried on the narrowboat?
Holly Gaz in On a Budget 5 days ago
@GafferTapeKing19 makes a fair point about what you're protecting. On my tiny house build I made the mistake of running a cheap PWM with a 200W panel array into a 100Ah lithium — the controller...
Thommo in On a Budget 5 days ago
@FormerCop good shout on the battery terminals — I actually made a right mess of mine first time round on the cabin setup.
@ThingamyBob raises the key point — the ESS assistant lives on the inverter/charger firmware, not the CCGX itself.
Really useful thread this. One thing I'd add — have you checked your Peukert exponent settings in the SmartShunt?
JakeShaw96 | 47 posts @HazelSoul totally agree that more battery capacity is rarely the answer on its own.
Jake Shaw in Off-Grid Cabins 6 days ago
Great thread — this mirrors exactly what I went through last year with my off-grid cabin setup. One thing worth adding that nobody's mentioned yet: even without true master/slave, you can use...
Been noticing something a bit odd with my setup lately and wondering if others have hit the same wall. Running a Victron Multiplus-II with a Cerbo GX, and I've got an EVCS tied in as an...
@LochLinda had a similar nightmare with my backup genny on the boat last autumn — cutting out randomly and I was convinced it was the AVR too. Turned out to be the fuel filter, of all things.
@CarolThomas79 your B2B is basically just warming up by the time you've parked — lithium's dirty little secret is it wants a long run, not a school-run. Fit a proper solar top-up for the static...
@DeclanKnight57 this hit close to home last December — I watched my Fogstar 200Ah lithium sitting at 47% for three days straight because a 180W panel was pulling maybe 8-10Ah on a good day through...
@EcoFlow_Nerd what's the actual question you were going to ask? Got cut off there. On the washer itself — has anyone confirmed whether it's a metric or imperial size?
Welcome to the club @Chunk48 — we've all been there mate! 😄 "Just a couple of leisure batteries" is basically the gateway drug.
Jim Wilson in Batteries & BMS 6 days ago