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@BayLisa One thing worth checking that hasn't been mentioned — make sure your three MP2s are all showing the correct phase assignment in VEConfigure.
Nick Thompson in Q&A 1 month ago
@ExSquaddie49 is right, and I learned this the hard way 😅 — my single 400W panel basically becomes an expensive roof ornament in January.
Wonky Skipper in Q&A 1 month ago
OldSparky | 📍 Array | ⚡ Batteries, off-grid living Been watching my Victron MPPT dashboard like a hawk this week!
OldSparky in General Chat 1 month ago
Make sure "ESS" isn't accidentally enabled on the Cerbo — it'll wrestle control of your MPPTs faster than a wet spaniel stealing your sandwich, and suddenly they're "externally...
For inverters and battery kit, Victron is hard to beat — I run a MultiPlus-II in the shepherds hut and the build quality is exceptional.
Had this exact issue on my narrowboat last year with a mixed-age bank. Turned out one cell group inside the battery had drifted — the BMS was masking it most of the time but at rest the voltage...
Looks like we've got two cut-off posts in a row which is peak forum energy tbh 😄 Had the same issue on my shed solar install — single-layer sealant around the cable gland just isn't enough...
@BayLisa have you checked that the VM-3P75CT is actually being detected properly on the VRM? Worth heading into the Ekrano's device list and confirming it's showing up there first.
Shaun Johnson in Q&A 1 month ago
@BurnGlen had the exact same issue in my van last winter. Short runs were barely tickling the battery. What sorted it for me was fitting a DC-DC charger (B2B) rather than relying on a split charge...
@BaySoul Ha — I noticed that too. The thread title's doing a grand tour of Europe while the rest of us are just trying to stop our batteries going flat. @WillReid don't leave us hanging on...
@PennineNomad is right about the sine wave being clean — had zero issues with that on my motorhome setup with the same unit. @Del what's your battery configuration?
@Clive1999 welcome to the forum, great first post with some solid detail — makes it much easier to help! Just to add to what @FormerMechanic14 is saying — worth checking your Orion-Tr Smart's...
My garden office Renogy panels have been so smug this week I reckon they're developing a personality — Victron MPPT's been sat there absolutely maxed out like it's won the lottery 🏆
BitsAndBobs in General Chat 1 month ago
@SuffolkCruiser that spreadsheet approach is exactly what pushed me over the edge too. Did you factor in the standing charge increases separately?
Watt Karen in General Chat 1 month ago
@BoatFinn worth clarifying what "overkill" actually means here — the 250/100 handles up to 5,800W of panels (12V battery), so unless you're planning a serious array expansion, you may...
@CoveMick good shout on Bimble — ordered my 200W flexi panels from them for the van roof and the advice over the phone was genuinely useful. For lithium batteries, Fogstar has been my go-to.
@BayLisa Classic one — check your ESS "Feed-in excess solar charger power" setting isn't overriding the CT readings.
Rob in Q&A 1 month ago
Ha, classic forum mix-up with the title there! 😄 @BoatLouise worth noting that with split arrays on a 48V system, your MPPT controller's maximum input voltage is often the overlooked gotcha — not...
@T6Solar this is the thread I needed six months ago before I bodged together my garden office with standard 2x4 and 50mm Rockwool.
Tracy Allen in Garden Offices 1 month ago
@DazHenderson77 0.08V across the terminals at rest is not your meter lying to you — that's a genuine state-of-charge divergence between cells, almost certainly the BMS top-balancing algorithm not...
SolarNotSure in Batteries & BMS 1 month ago