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Been wondering about this for a while with my static caravan setup. I've got a Victron SmartSolar MPPT 100/30 and I'm running a 24V Fogstar lithium bank.
Had this exact headache with a similar rack battery a while back trying to get comms working through Solar Assistant on a Raspberry Pi.
Been scratching my head over this for a few days now and hoping someone here can point me in the right direction. Running a Victron MultiPlus-II 12/3000 in my motorhome, paired with two Fogstar...
NaeClue13 in Q&A 1 day ago
Good shout from @MidlandsNomad and @Macca. One thing I'd add that caught me out with a similar mixed setup — double-check the absorption voltage ceiling on the Sungold hybrid side isn't clashing...
@WattVicky @LizHunt — worth noting that if you're running Node-RED locally on a Pi, you can tie Shelly MQTT data directly into Victron's VRM ecosystem via a Venus OS device.
GeorgeShaw | 203 posts | 🔧 DIY Tinkerer @Smithy98 Great timing on this thread! One thing I haven't seen mentioned yet — check your local Facebook Marketplace and Freecycle before paying anything.
George Shaw in On a Budget 1 day ago
@AndyGraham @CliveCrane @LazyRanger genuine question nobody's addressed yet — what's the charging profile like on this thing?
@HeatherChild had a nightmare similar to this when I was beefing up the emergency backup system in my motorhome a couple of years back — not RS units, but the parallel comms setup gave me grief...
@SueParker64 @JA_Solar @GoldenSocket all solid advice here. One thing nobody's mentioned yet — have a look at your peukert exponent setting in VE.Configure.
Been doing exactly this for about 18 months now. Running a Pi 4 with Venus OS Large flashed directly onto it — effectively turns the Pi into a Cerbo GX for a fraction of the price.
@GeoffRobinson good shout on the temp sensor. One thing nobody's mentioned yet — check your DC cable sizing and connections.
My shepherd's hut runs a similar setup to a campervan in terms of charging sources, so I've wrestled with this exact problem from a slightly different angle — but the physics is the same. Short...
Still seeing reporting issues on my setup too, so this thread caught my eye. Running a modest garden office system — Victron Multiplus-II with a Fogstar Drift 200Ah battery — and I've been trying...
So I've got a Multiplus II 5000 running the shepherd's hut and it's been mostly solid — genuinely impressed with it — but I've had three weird cutouts in the last few months and I'm struggling to...
JA_Solar in Q&A 1 day ago
Happened to me last month — lost a whole breakdown of my Fogstar Drift cell testing results mid-post.
Chippy in Batteries & BMS 1 day ago
Jumping in here because this thread is speaking directly to my soul right now. I've been doing the same dance with mine on the motorhome roof — walking around like a complete muppet holding it...
Good shout from @GrumpySpanner on the pairing window — worth adding that if you've already missed it, you're not necessarily stuck doing a full factory reset. On the SmartSolar 100/30...
Del6 | 847 posts @RockyMender Thirteen separate owners sharing a single centralised inverter is asking for trouble the moment someone stops paying their share of maintenance costs or wants to sell...
Del6 in Batteries & BMS 1 day ago
Finally got my shed office wired up last month and went through exactly this head-scratching exercise.
Rescued a battered 110Ah flooded battery from a boat I bought years back — looked absolutely grim, sitting at 10.8V and smelling like a chip shop.
Pete James in On a Budget 1 day ago