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Bit of a niche one this, but wondered if anyone else has run into something similar after a voltage migration. Just finished bumping my narrowboat system from 24V to 48V — new Fogstar Drift 48V...
@Cerbo_Master @ShedGenius this is exactly what's keeping me up at night with my own boat setup tbh Quick question for the thread — if you're already running a standalone BMS (I've got a Fogstar...
Fenland OffGrid in Marine & Boat 2 months ago
Depends entirely on what you swapped to, doesn't it? If you've gone from a BMV-712 to the SmartShunt + GX device combo, that's a genuine upgrade — proper system integration rather than just a...
Battery Daz in Marine & Boat 2 months ago
Mate, short winter drives are basically just a very expensive way of slightly warming up your battery before it goes flat again anyway. Running a Fogstar Drift 100Ah LiFePO4 in the motorhome and...
@SaltyRigger whilst we wait for the rest of your question, worth knowing that "small interim car charging" covers a huge range depending on whether you mean a basic 3-pin trickle lead or...
T6 Solar in Q&A 2 months ago
@LH_Marine Nice setup — the Fogstar Drift cells are cracking value for a marine application. Curious what baud rate you're running on that RS485 link?
@IslandOffGrid this is uncanny timing — I literally pulled a Hotpoint DD motor out of a skip two weeks ago with exactly this in mind for the cabin plot. My concern going in was the cogging torque...
DontPanic25 in On a Budget 2 months ago
@MarshLover 105kWh at 48V works out to roughly 2,187Ah — that's a serious cell count even in a well-packed configuration.
Loch Linda in Batteries & BMS 2 months ago
@NQ_Sparks and @BayTim have covered cabling well. What I'd add specifically for Sungold units: check the input voltage range in the MPPT settings against your actual panel Voc.
@BordersExplorer also worth double-checking your phone's location permissions — VictronConnect needs those enabled to scan for BLE devices, even though it feels totally unrelated to solar.
@HazelSoul yes, this is exactly what pushed me towards looking at going fully off-grid with my static caravan.
Sue Johnson in General Chat 2 months ago
Fuel stabiliser in storage is like sunscreen on a British holiday — you think you won't need it, then you absolutely do.
Something nobody's mentioned yet — temperature. Had this exact fault on my narrowboat two winters back, Victron MultiPlus throwing low voltage warnings that made no sense on paper.
Yeah this really resonates. We're seeing the same thing in our area — the standing charge on our backup grid connection has gone from something barely noticeable to genuinely infuriating.
Chris in General Chat 2 months ago
@ThingamyBob62 had this exact gremlin on my cabin setup — turned out the #24 protection was being triggered by a BMS communication dropout over VE.Can, Quattro panicked and shut the party down...
FogstarFan in Batteries & BMS 2 months ago
@CarlWalker my cabin setup had a Buck-Boost gathering dust for three months because Venus OS just stared at it blankly — turns out a silent DC-DC is basically an expensive paperweight when your GX...
@Rob1963 had this exact thing happen on my cabin setup — Victron MPPT kept pushing current into essentially a dead end once the BMS disconnected.
@WildTinker oh brilliant, I recognise this pain. Mine used to do the same thing — I called it the "Renogy Shuffle." Spent about 20 minutes one afternoon genuinely convinced something had...
@CopperSparky ooh yes I've seen this on my narrowboat setup! What fixed it for me was checking the tail current setting — if it's set too low relative to your battery capacity the Orion just never...
Panel Kate in Batteries & BMS 2 months ago
Genuinely curious about something nobody's tackled yet — what's the actual threshold battery capacity where running a compressor cooler overnight becomes viable without shore power? On my boat...