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Had this exact saga on my narrowboat last winter. Drove me absolutely mental for about three weeks before I tracked it down. Turned out my Dynamic Current Limiter was enabled and causing the...
Been running a Pi 4 (2GB) tucked behind the Victron MPPT in my motorhome for about 18 months now and honestly it's transformed how I understand my system. I've got it pulling data from a Cerbo GX...
@GlenWard the rapid cycling alarm is almost always the balancer hunting — it's detecting a voltage differential, firing current across to correct it, overshooting, then triggering again in the...
Been scratching my head with my MPPT 100/30 for the past couple of days and wondering if anyone's had similar. I've got a pair of 200W panels wired in series giving me around 72V open circuit,...
Lazy Bodger in Q&A 1 month ago
@MistyTinker absolutely right, and here's the thing that'll really bake your noodle — I spent an embarrassing amount of time convinced my Victron BMV-712 was faulty, convinced my Daly BMS was...
My Fogstar-fed Victron SmartSolar would sooner reach 60A than a Birmingham bus arrives on time — theoretical maximum, rarely seen in the wild, especially once your panels start sweating in the...
Been meaning to post about this for a while — finally getting round to it after a frustrating weekend. I've got a Victron SmartShunt on my main LiFePO4 bank (Fogstar Drift 200Ah if anyone's...
@LesWood78 ran my whole garden office setup through it on a whim and it told me my existing cable run was basically a fire hazard, which explains so much about that burning smell last August 🔥
@BorderOffGrid also worth double-checking your battery temperature sensor is actually reading correctly — mine was plastered to the wrong cell and the Multiplus was basically thinking the pack was...
NaeClue in Inverters & Chargers 1 month ago
Running a Cyrix-Li-ct in my static with non-Victron lithium here — the relay needs a proper charge/load disconnect signal or it just sits there confused like me in a B&Q electrical aisle. The...
Panel Rob in Batteries & BMS 1 month ago
Good point from @VitoSolar on the Multiplus draw — worth adding that the Multiplus-II specifically has a search mode that can cause odd little pulses showing on a shunt meter even in float.
@YorkshireCamper this one caught me out badly when I first set up my garden office system. What nobody mentioned to me at the time was the wiring resistance throwing the whole picture off. If your...
Running two Victron SmartSolar controllers off the same array on my garden office build — is this still asking for trouble, or has the master/slave setup actually sorted the old "they'll...
DuctTapeDave in Q&A 1 month ago
Ran into something similar with my cabin setup a while back and never fully got to the bottom of it. Had two 12v AGMs wired in series for a 24v bank, with a Victron Battery Balancer sitting...
VanAnne | 312 posts | 🔧 Member Love this thread! Been eyeing up this exact project for my van build but space is obviously the limiting factor for me 😅 One thing nobody's mentioned yet — how are...
Van Anne in On a Budget 1 month ago
@OldSailor86 oh mate, I lived this saga on my old Ducato motorhome conversion. The culprit in my case was the BMS screaming at the Multiplus via CANbus with a CCL of zero during a brief cell...
Ducato Dream in Batteries & BMS 1 month ago
Good point from @LB_Camper. Worth adding that the dropout threshold on Victron MPPTs is configurable via VictronConnect — the "Start voltage" and "Tail current" settings are...
@HarbourKev genuinely curious what size CT clamps you're running on the grid-tie side — with three MultiPlus-II 5000s in three-phase you're potentially pushing serious current imbalance scenarios...
The bit nobody mentions — BMV-712 drift over time is real. Mine was reading 15% higher than actual after about 8 months without a proper sync.
OffGrid Max in Batteries & BMS 1 month ago
@Bomber one thing worth adding to what @FormerMechanic14 and @BlownFuse have said — ambient temperature makes a massive difference to duty cycle.
Bev Jackson in Q&A 1 month ago