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@LisaKelly66 is on the right track but didn't finish the thought, so I will. Your 100/30 is using its own internal voltage-based SOC estimation, which bears essentially no relationship to what the...
SolarNotSure in General Chat 2 months ago thumb_up 3
HarbourHamish | 412 posts @PaddyDavies one angle nobody's mentioned yet — think about where you're going.
Harbour Hamish in Q&A 2 months ago thumb_up 9
DebbieEvans | 847 posts | Pembrokeshire @CraftyWelder Great write-up, looking forward to reading the rest when you've finished it!
Debbie Evans in Off-Grid Cabins 2 months ago
@RobHenderson I had almost identical behaviour on my boat last winter. Turned out my absorption time was set too short in VE.Configure — the MultiPlus was hitting the voltage threshold quickly on...
12V_King in Inverters & Chargers 2 months ago thumb_up 6
@NicolaTaylor72 I've had almost identical behaviour on my boat — worth also checking whether your battery capacity setting in VictronConnect is actually correct.
Really useful thread this. I've got a Victron MultiPlus setup which helps enormously here — it'll automatically switch to the generator input the moment it senses the batteries dropping below a...
Victron_Pro in Emergency & Backup Power 2 months ago thumb_up 6
@ForestDweller living this nightmare on my own boat — BMS said "nope" on a -3°C morning last January and left me with a very cold and very dark breakfast situation that no amount of...
FormerMechanic43 in General Chat 2 months ago thumb_up 4
Been running a Renogy 48V 3500W for about four months now in my converted horsebox up in Yorkshire. Honestly pretty solid so far — handles cloudy days better than I expected, which as we all know...
WrongFuse83 in Inverters & Chargers 2 months ago thumb_up 2
Last summer I finally ditched the old coolbox and fitted a Brass Monkey 50L compressor fridge in the van.
Cove Chris in Motorhome & Campervan 2 months ago thumb_up 1
@MarineKaren is absolutely right about cable runs — I spent a weekend on my knees pulling 6mm² through a conduit I swore was accessible until it suddenly wasn't.
Good shout from @VivaroWanderer on the temperature angle, but worth adding that I've seen this same drop-out behaviour on a Daly Smart in a perfectly warm environment — turned out to be ground...
Barry Wood in Batteries & BMS 2 months ago thumb_up 8
@FEE_Solar raises something really important there — curved roofs on narrowboats are a nightmare for standard rigid panels anyway, so the flexibility argument goes beyond just aesthetics.
24V_Nerd in Inverters & Chargers 2 months ago thumb_up 1
Been running a 100/30 MPPT on my van build for about four months now — two 175W panels in series feeding a 200Ah lithium (a Fogstar Drift, since you're asking).
Pike Russ in Q&A 2 months ago thumb_up 2
Running a Victron SmartSolar 100/30 with a 200Ah lithium (a Lion Energy UT 1300) on my narrowboat. During summer it was spot on — hit 100% around midday, held it, all made sense.
Coastal Wanderer in Q&A 2 months ago thumb_up 5
Really familiar with this one — my garden office setup went through exactly the same drama last January when we hit a cold snap. What sorted it for me was wrapping the battery bank in closed-cell...
Stacey28 in Batteries & BMS 2 months ago thumb_up 6
Good point from @ExChippie94 about load changes — I'd also add that it's worth checking the physical mounting.
Ella in Batteries & BMS 2 months ago thumb_up 2
Something @MandyRoss touched on is worth digging into further — if your BMS is actively talking to the Victron via VE.Direct or Cerbo GX, it can override your manually set charge voltages...
Deano13 in Solar Panels & Controllers 2 months ago thumb_up 5
@Ollie1981 whilst we're waiting — if you've got a clamp meter on it, worth logging the idle draw too, not just under load.
Crispy Trekker in Inverters & Chargers 2 months ago thumb_up 9
Cheers @CotswoldNomad for nailing down that cert number — saves a lot of digging around on the ENA portal!
Wonky Drifter in Inverters & Chargers 2 months ago thumb_up 9
@JohnBaker ran almost exactly this setup in my garden office for about eight months — Fogstar Drift next to an older Renogy LiFePO4, each with their own BMS wired in parallel. The problem I kept...
Nige in Batteries & BMS 2 months ago thumb_up 7