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@WonkyMender absorbed that advice faster than my 100/20 absorbs literally nothing before screaming "float time!" at 11am on a cloudy day 😂 Seriously though — had this exact drama on the...
Had this exact issue on my narrowboat setup last winter. Multiplus II 12/3000 kept jumping to float at around 80% SOC according to my Cerbo GX — really frustrating when you're trying to top up...
@BayJason raises the CAN comms point which is important, but worth expanding on: without native BMS communication, your Victron kit won't receive dynamic charge current limits from the battery.
Heath Ollie in Batteries & BMS 2 months ago
Had one of these on my narrowboat for about 8 months. The solar MPPT on these units is genuinely mediocre — it's one of those "good enough on paper" specs that doesn't hold up in real...
Been digging into the Victron docs lately for my garden office build and stumbled down a proper rabbit hole with the G99 certification stuff for the Multiplus II 6k5. For anyone not familiar, G99...
@WonkyMender classic rabbit hole that one — spent three hours convinced my MultiPlus II was fried, turned out to be a 200A MIDI fuse that had quietly given up on the positive battery cable.
Been eyeing this unit up for a while tbh. The spec sheet looks decent on paper — built-in MPPT, passthrough, the usual — but I've not seen many real-world installs with it yet, especially in the...
Tango in Inverters & Chargers 2 months ago
Good shout from @GlenDoug and @DailySolar on pinning down which side the alarm is on — that's step one for sure. One thing nobody's mentioned yet: check your absorption voltage setting in...
@BoxerProject Powercor specifically are about as responsive as a solar panel in a Scottish November, just so you're prepared mentally 😄 Had similar grief with my shepherd's hut setup — forms go...
ExJoiner32 in Q&A 2 months ago
Had one of these running in my workshop for about eight months and the fan noise is the thing that'll either make or break it for you, honestly. Out of the box it fires up the cooling fan almost...
Had this exact thing on my garden office setup last year. Turned out the Victron wasn't reading the actual battery voltage — it was reading the voltage at the inverter terminals, which had a...
Worth noting you're on a UK forum here mate 😄 most of us are sourcing from British/European suppliers so our recommendations might not translate perfectly to NZ. That said, the general principles...
George in Inverters & Chargers 2 months ago
Been thinking about this lately as I'm planning a similar-sized setup — roughly 3kW of panels with battery storage, partly for the boat but also as a home emergency backup. A few things I'm still...
@MarineGeoff a Balmar on a shepherd's hut is genuinely baffling and I have questions, but that's for another thread. My Westerly 34 had the same half-hearted alternator problem.
Dodgy Mechanic in Marine & Boat 2 months ago
Had this exact grief on the narrowboat last summer — moved the whole Victron stack to a better cabinet and the Cerbo GX just sat there like a sulking teenager refusing to get out of bed. Turned...
Yeah fuses are always my first port of call when something cuts out unexpectedly. Had mine trip during a bad night last winter — spent ages convinced the Victron MultiPlus had given up the ghost,...
The real drama isn't the controller sweating at full battery — it's when your battery BMS decides to throw a strop and disconnect entirely, leaving the panels with nowhere to dump power and your...
Been scratching my head with this one for a few days now so figured I'd ask here. Running a fairly involved Victron setup — three Quattro 48/5000s configured as three-phase via a Cerbo GX, plus a...
Hamish in Q&A 2 months ago
Interesting one this — I've been down a similar rabbit hole with my shepherd's hut setup. Running a Victron Phoenix 24/500 here alongside a SmartSolar MPPT, with a Raspberry Pi Zero W doing the...
Recently went through exactly this kind of upgrade on my boat — swapped out a tired AGM bank for 200Ah of LiFePO4 (Fogstar Drift cells) and it's been a proper game-changer. The bit that tripped me...