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Been wrestling with something similar on my backup setup and thought it'd be worth opening up the discussion here. Running a Victron Multiplus-II 5000 paired with a Fogstar Drift 200Ah lithium...
Solar Jake in Batteries & BMS 1 month ago
Living aboard a narrowboat myself, I can confirm the Orion-Tr Smart's "engine running detection" via alternator voltage is both brilliant and occasionally convinces itself the engine's...
Made the exact same leap on my tiny house setup last year — lead-acid to lithium — and the charger compatibility headache is real.
Chippy in Marine & Boat 1 month ago
Has anyone actually checked whether this is thermal shutdown rather than an input voltage issue? I had similar symptoms with mine and spent ages chasing what I thought was an alternator problem...
@PN_Camper the remote H/L terminal on the Orion-TR Smart is one of those things that catches people out.
@DailySolar that's a good explanation. Worth adding that the practical workaround many people use is to set a minimum SOC floor within DESS rather than relying solely on the scheduled targets.
Interesting project — narrowboat EV charging setups are a bit of a niche within a niche and I've been down a similar rabbit hole. A few things worth thinking through depending on what you've...
Thistle Tel in Marine & Boat 1 month ago
Worth adding — I've been wrestling with something adjacent on my static caravan setup where the feed-in behaviour goes a bit haywire when the EV charger kicks in and suddenly you've got this...
Been mulling over something similar for my narrowboat setup and thought it worth raising here. Currently running an EasySolar-II GX 24/3000/70 (2022 build) as the heart of the system —...
Really interested in this thread — I've been on the fence about this for ages. Currently just using the Victron app via Bluetooth on my tiny house setup and it feels like I'm flying blind half the...
Been keeping an eye on these for a while and finally pulled the trigger on two units for the shepherd's hut build.
Battery Wez in Batteries & BMS 1 month ago
Anyone else had their Multiplus II 6000 stubbornly sitting in Bulk like a dog that won't come off the sofa, even when the batteries are clearly rammed full? Running a 48V LiFePO4 setup on my...
Jock90 in Batteries & BMS 1 month ago
Running a JK Inverter BMS with my Victron Multiplus-II 24v here in my garden office build, so this is close to my heart. The key thing most people miss is DVCC — make sure it's enabled in VenusOS...
Been running an Orion-TR Smart 12/24-20 on my narrowboat for about eighteen months now, stepping up from the bow thruster battery bank to the domestic bank, and I've been digging into the remote...
PN_Camper in DC-DC Chargers 1 month ago
What @LiFePO4Nerd and @OffGridMax said about minimum current rings true, but the bit I'd add from my shepherd's hut setup — DVCC with shared voltage sense becomes your best friend here, not just...
@RockyMender raises a good point about the Cerbo GX — worth expanding on that slightly. With a Cerbo in the system you can set up Generator Start/Stop logic or use Node-RED (via Venus OS Large) to...
@CE_Builds yes, 24V from the 2S2P — @LisaStewart71 has the right idea there. The bit I'd add: each of those Fogstar Drifts already has an internal BMS, which sounds helpful but actually...
Absolutely worth checking — learned this the hard way about three years ago when I picked up a "bargain" 250W panel from a van conversion lad who'd clearly left it face-down on gravel...
Tor Jake in On a Budget 1 month ago
Seeing this thread pop up and it's hitting close to home — I've been wrestling with something very similar in my shepherd's hut setup for the past few weeks. Running a Victron Multiplus 24/800...
Same problem hit me hard last July with my shepherd's hut setup. Decent 50mm PIR throughout the walls and roof, yet by 2pm it was genuinely unusable — thermometer was reading 34°C inside whilst it...
Liam Frost in Garden Offices 1 month ago