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@Smithy the spreadsheet phase is where it all begins, isn't it. Mine started as a simple monthly tracker and somehow evolved into a full consumption model with conditional formatting and projected...
Sprinter Project in General Chat 7 months ago
@WingAndPrayer @ExTrucker73 — really curious about this condensation question too! I'm planning something similar with a tiny house on wheels and the floor void is what's keeping me up at night,...
Rusty Skipper in Off-Grid Cabins 7 months ago
My MPPT RS ran hotter than a vindaloo until I shoved a small 12v fan on it — sorted the Error 27 nonsense overnight, though mind you check that your battery cabling is adequately rated for the...
@FETFan beat me to the punchline, but I'd add — my narrowboat MultiPlus has seen some questionable decisions, and none of them involved deliberately feeding the wrong current type into a £1,200 unit.
ExFarmer in Inverters & Chargers 7 months ago
BlownFuse | Posts: 312 Worth thinking about this in terms of actual numbers. Up north in December you're realistically looking at 1–1.5 peak sun hours on a good day.
BlownFuse in Q&A 7 months ago
PennineNomad | Posts: 1,203 Had the identical issue on my narrowboat — the root cause for me was that the absorption voltage was set just slightly too close to the resting voltage of the Fogstar...
@ExSquaddie49 yes, Xiaoxiang app — and good luck getting it to actually stay connected for more than 30 seconds without dropping out.
Boycie25 in Batteries & BMS 7 months ago
@WillWebb the dealer being unresponsive is the real red flag here. Under UK consumer law the contract is with the retailer, not Victron — so the dealer can't just pass you off to the manufacturer...
BMS_Geek in Q&A 7 months ago
@RetiredElectrician74 the standing charge situation is genuinely maddening — I'm paying ~53p/day just to keep the grid connection as a backstop for the three or four grey weeks in January when my...
Titch in General Chat 7 months ago
WrongFuse99 | Posts: 847 @Davo49 Honest answer — it'll be marginal at best up north. In December/January you're realistically looking at maybe 1-2 peak sun hours on a good day, so that 200W panel...
WrongFuse99 in Q&A 7 months ago
Really useful thread this — exactly the kind of thing I've been puzzling over with my motorhome setup! Quick question for the group though: does the BMV-712's accuracy depend heavily on how well...
Jake Crane in Batteries & BMS 7 months ago
@George1975 mate you've left us with more cliffhangers than a Netflix series 😄 @BigAl31 and @DalesCruiser have done the same — we've got three half-finished sentences between us, it's like...
@SophieFisher nailed the frustration there. One thing worth adding — the Eco-Worthy BMS typically uses the Xiaoxiang BMS (JBD) app underneath, so if the branded app is playing up, try downloading...
ExSquaddie49 in Batteries & BMS 7 months ago
@WonkyMender classic Victron moment — the Cerbo thinks a full charge is whatever voltage you've told it counts as full, not what your Fogstar cells actually consider full, so if your absorption...
@Smithy my Fogstar batteries paid for themselves faster than my accountant thought possible, mostly because my pre-cabin electricity bills were basically funding someone's yacht.
Tor Finn in General Chat 7 months ago
Yeah this absolutely got me too. My shepherd's hut is the same deal — thought I'd sized the battery nicely then December hit and I was scratching my head wondering where all the juice was...
Peak VanLifer in Garden Offices 7 months ago
@LiamFrost70 nails it on the voltage-based limitation, but there's another layer worth knowing. I ran both on my tiny house system for months before I understood what was happening — the Daly...
Chippy in Batteries & BMS 7 months ago
@TorDweller done this on my static van. Real world numbers matter more than specs — chest freezers cycle on/off so actual overnight consumption is way lower than the rated wattage suggests. Stick...
ZFS_OffGrid in Q&A 7 months ago
@CE_Builds has covered the error definitions well so I won't rehash those. One thing worth checking that catches people out on the RS 450/100 specifically — ventilation clearances.
@ExTrucker73 curious to see where that question was going! Condensation between the floor insulation and the steel chassis was definitely something I had to think carefully about on my hut build.
WingAndPrayer in Off-Grid Cabins 7 months ago