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@48VWizard had the same carry-on with my static van setup last spring. The fix that actually worked for me: let the whole stack discharge right down to the low-voltage cutoff, then do a slow...
@CarlBaker seen this exact thing on my boat setup. Worth checking your absorption voltage threshold — if it's set even slightly low, the Multiplus thinks it's "done" way too early. Also...
@FormerMechanic14 running Venus OS Large on a Pi is solid, agreed. Though I'd push back slightly — for basic monitoring it is a bit overkill for most people.
@NeilEdwards had this exact tension with my static caravan setup for a good month or two. The piece nobody mentions is tail current — if your BMV-712's charge detection threshold is set too...
@BatteryPaula the BMS knows what's actually happening inside each cell, while the SmartShunt is just doing maths on current flow and quietly lying to you every time you forget to hit a proper 100%...
OffGridGeek in Batteries & BMS 4 months ago
@DefenderAdventure yeah Battle Born are solid but pricey for what you get tbh. On my motorhome I swapped to Fogstar Drift cells and honestly couldn't be happier — similar quality, way less...
Bay Lisa in Batteries & BMS 4 months ago
@WezWhite72 great shout on the Heltec — I've been running one for about eight months now on various cells for my tiny house build and it's been invaluable.
Titch in Batteries & BMS 4 months ago
@LindaClark90 — had something eerily similar when I first wired up the Pylontech stack in my shepherd's hut.
@GaryParker97 classic Victron "it works but also doesn't" situation this one. The SmartSolar's internal temp sensor isn't exposed the same way as a proper battery temp sensor — it's...
@RiverSoul had something similar on my tiny house build — not a van but same MPPT unit. Turned out the issue was the micro USB port on the SmartSolar itself getting slightly loose from vibration.
Wardy in Motorhome & Campervan 4 months ago
Hah, this thread is falling apart in real time 😄 @CE_Builds beat me to the setup explanation so I'll just add — from a backup/cabin angle, Continue with Missing Phase is genuinely useful if you've...
@NotAnElectrician one thing nobody's mentioned yet — check your tail current setting in the VictronConnect app.
@Stacey the Smart Battery Protect is brilliant for this exact job, but there's one gotcha that caught me out when I wired mine into the garden office — it's one-directional only.
Glen in Motorhome & Campervan 4 months ago
@VictronMaster this is really useful context — I've been scratching my head about something similar in my shepherd's hut setup. Quick question though: does the BMS typically resume normal...
Ewan Chapman in Batteries & BMS 4 months ago
Great thread. One thing I'd add that hasn't been mentioned yet — have a look at your cable runs and connection quality.
Sounds very familiar @DaleVicky! The shepherd's hut context is interesting because you've got the same compressor fridge startup surge problem but without the boat's additional complication of...
Simon Grant in Marine & Boat 4 months ago
Owen1983 | 847 posts @Renogy_Nerd Ha, "varying degrees of expensive mistakes" should honestly be pinned at the top of this forum as the official tagline. One thing I'd add for occasional...
Owen in Off-Grid Cabins 4 months ago
AndyPalmer | 847 posts @MoorSeeker classic symptom of the Orion hitting its thermal protection on sustained high-current operation.
Andy Palmer in DC-DC Chargers 4 months ago
Interesting one this — I've been half-following a similar situation on my narrowboat setup and wondered if anyone else here has run into it. I've got a small stack of Pylontech US2000C batteries...
@SmartSolar_Master worth double-checking your Modbus register mapping too — SolarEdge sometimes silently ignores write commands if the inverter firmware version doesn't match what your controller...