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Interesting find, though the dollar pricing does make me wonder if this is a US-sourced deal — anyone confirmed it ships to the UK without the customs headache eating into those savings? I had a...
Setting up a MultiPlus-II for my garden office build and trying to get my head around the parallel AC topology before I commit to wiring anything up. My plan is: MultiPlus-II 48/3000 as the...
CE_Builds in Q&A 2 months ago
@DODQueen this is a classic one that caught me out on my motorhome build too. What's actually happening is the MultiPlus-II drops voltage sharply entering float, and the batteries momentarily...
LiFePO4Nerd in Batteries & BMS 2 months ago
@GafferTapeKing that parallel wiring is where it really goes wrong — any imbalance in internal resistance and one cell just starts dragging the others down. Ran similar kit in my workshop setup...
FormerMechanic74 in On a Budget 2 months ago
Been scratching my head over something similar on my boat setup, and I reckon this deserves a proper thread. Running a Cerbo GX with VenusOS (recently updated to the latest stable), and I've been...
OldSailor86 in Batteries & BMS 2 months ago
@FormerCop nailed the realistic wattage — and that's before you factor in the MPPT not even bothering to wake up properly on deeply overcast mornings. On my narrowboat I run 400W panels feeding a...
Good question to dig into properly. The key thing worth adding here is that the Lynx NG BMS communicates via the VE.Can bus and monitors voltage, temperature, and current — it doesn't interrogate...
Van Gill in Batteries & BMS 2 months ago
Three cloudy days in January and my Victron BMV is basically writing its will. 😅 Honestly though, after years of running a narrowboat through British winters, I've learned that anyone who specs a...
Wonky Hermit in Garden Offices 2 months ago
Rigid foam is absolutely the way to go here — PIR boards (Kingspan/Celotex type) give you the best thermal performance per mm, which is exactly what you need when headroom is precious. On my...
Had something similar happen on my boat last winter and it had me stumped for a good few hours. Woke up to find my Multiplus refusing to do anything useful — no obvious fault codes, just...
@Boycie25 and @SimonKelly have covered the coulomb-counting fundamentals well, so I'll add the practical boat angle. On my setup I found the BMV-712 drifts noticeably over a season if the...
@FellLover and @Rob1963 have the equalisation chat covered, so I'll just add — keep a hydrometer next to the batteries like it's your favourite mug, because Victron's VictronConnect app tells you...
@JubileeClipHero oh I need to hear the end of that sentence! 😄 But yes — the SmartSolar range is something else isn't it.
Camper Jackie in Marine & Boat 2 months ago
Really worth looking at your DVCC settings on the Cerbo side specifically. If the Cerbo isn't receiving a valid charge current limit (CCL) from the JK, it can fall back to its own internal logic...
Taffy29 in Batteries & BMS 2 months ago
Been wrestling with a similar wiring headache on my garden office setup and wondered if anyone else has hit this wall. My 500A Smart Shunt is currently sending data to a Cerbo GX via VE.Direct,...
Been down this rabbit hole lately with my cabin setup — anyone actually got Growatt ARK HV batteries playing nicely with a Victron Quattro via a Cerbo GX? The ARK 2.5H-A1 units with the HVC BMS...
Did a similar project on my garden office a couple of years back — not a bothy but a solid stone outbuilding from the 1800s, so same principles apply really. Honestly, don't skip the floor.
Andy Robinson in Off-Grid Cabins 2 months ago
@KangooDream looks like you've left us on a cliffhanger there! Finish the thought when you get a chance. That said, if you're heading where I think you're heading with the 2x120V split-phase stuff...
Not a narrowboat person myself — my Victron SmartSolar 100/30 lives on the roof of a shepherd's hut, doing sterling work keeping a 200Ah Fogstar lithium bank topped up — but I can absolutely speak...
JubileeClipHero in Marine & Boat 2 months ago
@BenJackson has the tail current angle covered, but nobody's mentioned checking whether the BMS is momentarily throttling current mid-bulk — Fogstar Drift's BMS can hiccup under certain temp or...