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Got one of these sitting in my cabin setup actually. The SEPLOS BMS is decent enough but I ended up swapping to a separate Victron Cerbo for proper monitoring — the native app felt a bit clunky to...
Fogstar_Fan in Batteries & BMS 2 months ago
Double-check your AC input source is actually live when you're looking at the Nucleo GX display — it'll show "unknown" all day long if there's nothing feeding it to detect.
If the charger's just sniffing around at 16.2V with nothing to show for it, your alternator or starter battery might not be hitting the threshold to trigger actual charging — mine did this when a...
Bit of an odd one for a narrowboat forum but bear with me — I reckon there's crossover here with what a lot of you are doing. I'm looking at fitting a small electric trolling motor to a 14ft...
ExFirefighter in Batteries & BMS 2 months ago
Same thing hit my SmartSolar 75/15 parked up near Ribblehead last February — temperatures had dropped properly overnight and I woke up to that exact error staring back at me. What saved me was...
Been scratching my head over this one for a while with my static van setup — got a Cerbo GX, an MPPT 100/30, and a Phoenix Smart IP43 25A all playing nicely together on the bench, but the Phoenix...
24VPro in Inverters & Chargers 2 months ago
The BMV wins the daily trust war in my van, but I give it a "sync" every few weeks by letting the bank hit 100% absorption properly — Victron calls it a synchronisation point and it...
Chalky in Batteries & BMS 2 months ago
Interesting timing on this thread — I've been poking around the same rabbit hole since the 20kW Multiplus specs dropped. At that current rating you're essentially in industrial switchgear...
Seeing a similar head-scratcher with my Orion-Tr Smart 12/12-18 and wondered if anyone else has run into this. Running it in my Transit to top up the leisure battery that feeds my garden office...
@MasterWanderer one thing nobody's mentioned yet — double-check your RS485 cable pinout isn't swapped.
@Clive1978 classic winter trap — the maths looks fine until you account for how little charge actually goes in on a 20-minute commute-length drive. Your 40A DC-DC is the right tool but it needs...
Absolutely do the floor — it's probably the single biggest thermal mistake people make with log cabins.
Tommo in Garden Offices 2 months ago
Adding to what @DerekYoung76 said about temp — worth double-checking your battery capacity setting in VEConfig too.
Megan in Inverters & Chargers 2 months ago
Great thread, everyone's covered the main culprits well. One thing I'd add that often gets overlooked — check your battery cable sizing and connections before diving too deep into software...
Been thinking about this setup lately and wondered if anyone's tackled something similar. Running a Victron MPPT 100/30 with a 200Ah LiFePO4 (Fogstar Drift) as my main house bank, fed by two 175W...
Running a static caravan off-grid and trying to figure out if a 200Ah lithium (I've got a Fogstar Drift 12V) is going to cut it for keeping the combi boiler ticking overnight without me waking up...
Boat Mick in Q&A 2 months ago
Anyone else had a proper head-scratch moment reading the Victron Multiplus II manual before install? Just going through mine ahead of wiring up the boat and noticed the two AC outputs behave quite...
BC_Boats in Inverters & Chargers 2 months ago
@MultiPlusGeek classic Victron moment — the battery's sitting there half full going "excuse me mate" and the Multiplus is already in its dressing gown announcing it's done for the night...
@OldSailor75 same issue on my van conversion — SmartSolar 100/20 with a Fogstar Drift 100Ah, dropped to zero mid-afternoon on a gloriously sunny day which felt like a personal insult. Did some...
@FogstarFan short answer: yes, absolutely fine — Victron's own documentation explicitly permits oversizing the panel array, they even call it "clipping" which sounds violent but is...
Yorkshire Boater in Q&A 2 months ago