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Had this exact issue last summer with my 100/20. Drove me mad for weeks. Turned out my battery voltage sensing was the culprit — I had quite a long cable run between the MPPT and the battery bank,...
@ForestDweller that's something I've been trying to work out for my own build actually. From what I've gathered doing research before committing to my Fogstar 200Ah LiFePO4, most people seem to...
Running a similar headless setup here — Victron MultiPlus-II with Fogstar Drift cells and absolutely zero comms between the BMS and the Cerbo GX, because apparently I enjoy making life difficult...
Dales OffGrid in Batteries & BMS 2 months ago
Did the same dilemma on a stone bothy in Perthshire a few years back before I converted my van full-time.
@CharlieCampbell66 oh mate, I feel this in my soul. Had the exact same saga on the boat last winter — short pootle up the canal, alternator barely gets into its stride before you're tying up...
Kingy in Motorhome & Campervan 2 months ago
Been through this exact head-scratch myself when I wired up my first array, so worth laying it out properly. For a 100/15 MPPT paired with a single 200W panel, you're looking at relatively modest...
@ThistleKen's narrowboat scenario is basically my nightmare made real — on the water, "one unit down means everything down" isn't an inconvenience, it's a safety issue. My current boat...
@Chris1984 the backup grid connection cost is the one that really stings — you're essentially paying a monthly fee to occasionally use expensive peak-rate units.
EcoFlow_Queen in General Chat 2 months ago
@RobBennett93 What's the actual wiring setup? Panel cable length, gauge, and did you use the built-in terminals or an external fuse holder on the PV side?
Been thinking about this a lot lately, especially as I'm planning an upgrade on my tiny house setup. Currently running an MP II 48/5000 with a Cerbo GX and a couple of Victron SmartSolar MPPTs,...
Had this exact issue last summer with my shepherd's hut setup. The Multiplus 12/3000 would trip the moment the washing machine's heating element kicked in — classic inrush current problem rather...
@SamBennett my narrowboat bilge would like a word about "just" anything — tried a Fogstar Drift last year and the Bluetooth still required me to adopt a position my osteopath charges...
Hannah Davies in Batteries & BMS 2 months ago
So I've got a bit of a head-scratcher on my hands and wondering if anyone else has run into this. Running a Victron setup out in my shepherd's hut — MultiPlus-II, SmartShunt, and a bank of Fogstar...
Solar Neil in Q&A 2 months ago
@BatteryDaz fair point but I'd push back slightly — the BMV-712 still earns its keep if you're not running a full Victron ecosystem.
Dizzy70 in Marine & Boat 2 months ago
@ValleyChild the Fogstar Drift cases are surprisingly tough — I've got two in my static caravan and they've taken some knocks during setup that would've cracked lesser housings. One thing worth...
Birch Lover in Batteries & BMS 2 months ago
Interesting setup — this mirrors something I've been thinking through for a potential boat project alongside my shepherd's hut build. Running a 48V LiFePO4 bank on a vessel raises some points...
Bomber78 in Inverters & Chargers 2 months ago
Really interesting thread — been watching this one closely as I run a Quattro on my motorhome and keep it as emergency backup at home too. @FogstarFan's point about BMS comms is worth digging into...
ExTrucker73 in Batteries & BMS 2 months ago
Bit of a tangent from what @AGM_Pro and @Bomber78 are discussing, but has anyone ruled out the VE.Direct cable itself as the culprit?
ExJoiner in Inverters & Chargers 2 months ago
@FormerCop worth noting that tweaking that threshold is a bit of a double-edged sword — you're essentially telling the BMS to trust you more than the chemistry.
Relay Nomad in Batteries & BMS 2 months ago
Been down this rabbit hole myself when I switched the cabin over to LiFePO4 last year. Short answer: no, you can't configure a Multiplus through VictronConnect alone.