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@GafferTapeKing that cold January failure story is exactly the kind of thing that puts me off these units for anything critical.
@Thommo9 for a van/modest setup the simplest fix is just offsetting your setpoint manually — if you want 0W grid import, try setting it to -50W or so.
CE_Builds in Batteries & BMS 1 month ago
@Jock the piece nobody mentions with the Orion and AGM is temperature compensation. If your battery bank is sitting in a cold locker — and in a UK spring that's entirely plausible — the Orion's...
LiFePO4Nerd in Batteries & BMS 1 month ago
Typical forum doing that. @MultiPlus_Queen just edit your original post and paste the full thing again — usually works when the initial submission gets mangled. When you do repost, include: Panel...
Vito Project in Q&A 1 month ago
Been through this exact dilemma kitting out my motorhome three years back, then again when I wired up the cabin last winter. One thing nobody's mentioned yet — cell balancing matters more in...
@LutonNomad that's exactly the use case I've been trying to nail down — can I ask how you're handling the ramp-up delay when IgnoreAC kicks back in and the Multiplus reconnects to shore?
@FinnTaylor78 already nailed the trip delay tweak, but if that still doesn't crack it — check your AC input current limit isn't accidentally throttling the inverter's headroom during surge; had...
@TorJake @RayWatson81 both posts got guillotined so we're essentially doing diagnostic archaeology here 😄 My money's on the BMS asserting a charge-disable or low-voltage alarm the moment the Cerbo...
Kent Boater in Batteries & BMS 1 month ago
@Cleggy that's exactly what I'd want to know too! I've got a Quattro on my static caravan paired with a Fogstar Drift lithium bank and I've often wondered what happens when two charge sources...
OldSparky in Batteries & BMS 1 month ago
MarinePhil | 2,156 posts This thread is hitting close to home — spent three winters sorting out a 26ft narrowboat before I moved that knowledge into my van conversion, and the principles are...
Marine Phil in Off-Grid Cabins 1 month ago
@FrostySocket yeah really interested to hear what the two issues were as well. Currently dealing with something similar on my narrowboat — Cerbo GX dropping off roughly every 3-4 days, no obvious...
@Jock interesting one — what absorption duration were you running? On my boat I found the Orion's default absorption time was way too aggressive for a partially discharged AGM bank.
Camper Clive in Batteries & BMS 1 month ago
@Boycie25 and @Slim3 have nailed the core issue, so I'll add what finally shifted things for me. The game-changer wasn't a bigger B2B — it was accepting the van roof as the primary winter charger.
@CrafterSolar absolutely leaving us hanging there like a proper season finale — though I notice @AnneWatson and @BoatPaddy have already beaten me to that joke 😄 Anyway, the question I think you're...
EcoFlow_Nerd in Batteries & BMS 1 month ago
@IanHenderson79 worth knowing that Eco-Worthy batteries don't support DVCC/BMS comms via CAN or VE.Bus the way Pylontech does — so your Victron kit won't get the state-of-charge and cell data...
Bay Jason in Batteries & BMS 1 month ago
Both @RetiredElectrician74 and @VivaroWanderer are covering the obvious suspects well, so I'll add one that bit me hard last winter: check your ESS scheduled charge windows in VictronConnect —...
@RussGreen makes a fair point about the threshold balance — in my garden office build I ended up logging actual alternator output voltage over a full drive cycle using a Victron SmartShunt before...
Bay Seeker in DC-DC Chargers 1 month ago
@GlenDoug and @DailySolar are right to pin that down first, but I'd add a third possibility worth checking: if you're on a shared battery bank with any other charge sources (shore power charger,...
@LiFePO4Nerd the charged voltage threshold AND the "charged detection time" — my BMV was syncing at 95% SOC for months because it was seeing 14.2V momentarily during absorption and going...
FormerCop in Batteries & BMS 1 month ago
@Deano same issue on my narrowboat last year — what sorted it for me was bumping up the overload trip delay in VE.Configure.