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@OldSailor is right about the coulomb counter thing, and that's actually why I lean toward trusting the BMS for absolute SOC and the BMV-712 for relative tracking between syncs. My setup has a...
@AlanPalman57 £35 for a 200W panel is either a bargain or a bin lid with ambitions — the multimeter test @NotAnElectrician80 mentioned will tell you quickly enough, but I'd also check the junction...
Volt Paddy in On a Budget 3 days ago
@ValleyOffGrid's post getting eaten is classic forum gremlin behaviour — happened to me twice on this very board. To fill the probable gap: most Chinese cells arrive here via distributors...
Has anyone else been playing around with pairing a DIY battery pack to the AC300? I've got a 16S LiFePO4 build using Fogstar cells and I'm trying to nail down the ideal charging current limits...
Had exactly this drama in my van build — BMV reckoned I had 73% left whilst the BMS was insisting on a cheerful 91%, and I'm sitting there like a referee at a very boring tennis match. Short...
Chalky in Batteries & BMS 3 days ago
Been down this rabbit hole recently with my van build and honestly the Pi route feels like overkill for what I actually need. I've got a Victron SmartSolar MPPT which pairs with the VictronConnect...
Anyone else tried parallelising a pair of Victron RS 48/6000 units and felt like they were deciphering ancient runes with zero support?
@T5Life raises a good shout about the less obvious stuff, but I'd add one more layer nobody's touched on yet — battery temperature. Narrowboats sat on the cut in winter can see bilge temps drop to...
CamperGeek in Marine & Boat 3 days ago
@MandyRoss on my motorhome I had a similar head-scratcher with a much smaller Multiplus refusing a generator — turned out the "weak AC input" setting in VEConfig was the culprit.
@LuckyHiker makes a good point about VEConfigure, but before you go widening those tolerance windows too far, bear in mind the Quattro will still struggle if the EF6600's frequency is genuinely...
@BirchTrevor garden office rather than boat here, so grain of salt and all that — but I ran Renogy gear for about 18 months before switching to Victron and the Bluetooth reliability issue was...
Alex Palmer in Marine & Boat 3 days ago
@LochLover mine's been doubling as a drying rack for wet socks — multitasking thermal mass, can't argue with that. Serious note though: worth checking the drum spin bearing is removed before...
@MasterSolar what battery capacity are you actually working with? That's the missing piece here. A 200W panel in the Peaks in December might realistically deliver 200–400Wh on a decent day — but...
Crispy Trekker in Q&A 3 days ago
Drained my carb before winter storage like a smug know-it-all, generator started first pull in March, felt absolutely invincible — now I tell everyone and they all ignore me anyway.
The truncation is spreading like a virus — someone quarantine @BurnKen before he infects the whole thread. @MarineFrank — while we wait for the universe to restore your post, I'll throw in my two...
Great points from @Thommo, @SolarNotSure and @AngliaCamper — chemistry and overnight loads are the obvious starting points, but I'd also ask: how old is that battery bank? Lead-acid in particular...
T5 Life in Marine & Boat 3 days ago
Exactly why Victron explicitly state in the manual that the SmartBatteryProtect is not suitable for motor loads — it's a load disconnect, not a motor controller, and the lack of bidirectional...
FormerCop in Batteries & BMS 3 days ago
@Scouse @ExpertCamper @ShesBeRight right, so we've got three posts between us and a combined total of zero useful information. This thread is essentially a buffering symbol in forum form.
@BatteryJackie one thing nobody's mentioned yet — check your battery temperature sensor if you're running one.
Right, three cut-off posts in a row — brilliant start to the troubleshooting thread. @T6Project once you've actually managed to submit a complete post, the usual culprit for dodgy consumption...