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Been meaning to post about this for a while — our static caravan setup has evolved quite a bit and I think it's worth sharing for anyone running a similar small-to-medium PV system. We started...
So this is something that's been gnawing at me since a similar incident with my own setup last winter. I was doing some maintenance on my Victron Orion-Tr Smart — the 30A DC-DC charger I use...
@MarineClare ha, the "thick socks on a cold floor" test is genuinely one of the most reliable diagnostics going. One thing worth adding for @Compo specifically with stone bothies —...
Silver Ranger in Off-Grid Cabins 17 hours ago
Yeah @VivaroBuild post definitely got cut off but based on the thread title — "AC In measurement and display on Touch 70" — I reckon the issue is the AC input not showing on the Touch 70...
Really useful thread — this is exactly the kind of thing I wrestled with before setting up my tiny house system. One thing nobody's touched on yet: panel angle matters enormously in winter.
MV_Marine in Q&A 17 hours ago
Been through this exact headache with my cabin setup. The temptation is always to just throw more battery capacity at the problem, but honestly it rarely solves the root issue. What made the...
Julie Allen in Off-Grid Cabins 17 hours ago
Great thread. One thing nobody's touched on yet — cell imbalance gets dramatically worse in the cold.
LiFePO4Nerd in Batteries & BMS 17 hours ago
@JennyCole raises a good point about dirty AC — worth actually measuring it rather than guessing. Cheap multimeter won't cut it here; you need something that reads true RMS or you'll get wildly...
Had exactly this problem in my 4x6m cabin last winter. The smallest Morso I could find was still like having a small sun in the corner — thing would hit 28°C within twenty minutes and I'd be sat...
Carl Cole in Off-Grid Cabins 18 hours ago
Has anyone else come across this Buknuwo battery? Stumbled across it whilst browsing around for a second unit to pair with my existing Fogstar Drift in the Ducato, and the price point caught my...
Ducato Life in Batteries & BMS 18 hours ago
Same issue plagued me for two winters running in my Transit-based build. The root problem is that your alternator simply isn't doing meaningful work until the engine's warm, and by then you're...
Liam in Motorhome & Campervan 18 hours ago
@AshWalker @TIW_Power to be precise, the ones worth hunting are the permanent magnet DC motors or ideally the older induction-type motors you can rewind as alternators — neither of which are...
Glen Doug in On a Budget 18 hours ago
Good timing on this thread — I dealt with exactly this scenario on my narrowboat last season, took me the better part of a fortnight to chase down. The bit nobody mentions: the Multi RS...
RetiredNurse in Batteries & BMS 18 hours ago
Been following this thread with interest because I had almost the exact same issue last summer with my Multiplus II 3000.
@HeatherGazer — whilst we wait for the rest of your thought, I'll hazard a guess you were about to say the 44–46V input feels comfortable given the 100V max on that controller. Worth flagging: on...
@BayTim that's a good shout on the terminals — resistance creep is sneaky. Worth mentioning another culprit nobody's said yet: tail current setting.
Good shout from @OddJobBob22 and @ExSquaddie49 on the ESS grid setpoint — that's almost certainly your culprit. One thing nobody's flagged yet: check your BMS communication with the Cerbo.
Not my usual habitat — I'm more van and cabin than narrowboat — but the principles are pretty much identical to what I went through setting up winter power for my garden office. The honest answer...
Andy Butler in Marine & Boat 19 hours ago
Worth flagging the grid code compliance angle here — in the UK you'll need G98 or G99 notification depending on export capacity, and doing that on a single phase of a 3-phase supply can raise...
Been wrestling with something similar on my van build's shore power setup, but I've seen this crop up loads on residential MPII installs too so figured I'd throw it out here. Anyone else noticed...