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Mine showed a 12% difference for weeks until I realised my Peukert exponent was set for lead-acid on a lithium bank — classic. The short answer is: trust neither blindly, use both as a...
Brook Lover in Batteries & BMS 3 months ago
@Spud79 makes a fair point about battery sizing — we went through exactly this debate when planning our narrowboat setup.
Linda Clark in General Chat 3 months ago
TerryLewis | Posts: 847 @DODQueen interesting idea but I'd steer well clear of daisy-chaining Multiplus units like that.
Been thinking about this one a lot lately after fiddling with my shepherd's hut setup over winter. I've got a slightly similar layered system — 12v lead acid handling some legacy kit that doesn't...
Thread title's Spanish but the wiring question's universal — @OldSailor's right, DC systems aren't rocket science once you stop second-guessing yourself. Key bits most people bodge: Fuse every...
Great thread, this. @RetiredEngineer86 makes a solid point about condensation, but worth adding that even if the sensor itself is fine, make sure your battery temperature compensation settings in...
24V_Nerd in Inverters & Chargers 3 months ago
The ZYC packs typically use a JK or DALY BMS internally, and neither talks to Victron natively without a separate CANbus adaptor or a properly configured DVCC setup.
Daily Solar in Batteries & BMS 3 months ago
Been noticing something a bit odd with my setup over the past couple of weeks and wondering if anyone else has seen the same. Running a Victron Multiplus II with a Fogstar Drift 24V battery bank...
OffGrid Terry in Q&A 3 months ago
Beyond the firmware and wiring points already covered, something that bit me hard last winter was the battery temperature compensation settings in the Victron.
Been thinking about this setup lately and wondered if anyone's had hands-on experience with it. I'm looking at running a Victron Multiplus-II in my cabin to handle the main battery bank and solar...
DODQueen in Inverters & Chargers 3 months ago
Had this exact issue in my shepherd's hut setup last summer. Multiplus II kept jumping to float after maybe 2-3 hours of bulk even though the Fogstar Drift LiFePO4 wasn't anywhere near...
Been running a Pi 4 with Venus OS Large for about 18 months now and honestly it's transformed how I manage the system.
Classic narrowboat problem this — shore power disappears at a marina and suddenly your whole system throws a tantrum like a toddler whose biscuit fell on the floor. My Victron Multiplus-II does...
48VQueen in Inverters & Chargers 3 months ago
There are a few layers to unpick here, and I suspect the question might be coming from a North American context — because in the UK we're working with 230V as our standard mains voltage, which...
Been running a similar setup on my boat for about 18 months now — MultiPlus-II 48/3000 with a Fogstar Drift 48V LiFePO4 pack, no solar, just shore power charging and battery backup.
Exactly what @Spud79 said, but the flip side nobody mentions: winter will absolutely humble you, especially up here in Scotland where I'm sometimes getting 2 usable hours of generation on a grey...
Marine Geoff in General Chat 3 months ago
@LiFePO4Nerd makes a fair point but nobody's mentioned the British weather tax — half your "surplus solar" plan evaporates the moment it's February and you've got 0.3kW dribbling in from...
Jake Walker in Q&A 3 months ago
So I'm in a similar boat — got a 24v panel sitting on the roof of my static and a 12v Fogstar lithium under the bed, and I'm trying to work out the best controller setup without spending a...
Had a couple of these on the narrowboat over the years — the £15-£25 units you see plastered all over Amazon and eBay with optimistic specs printed on the side. Honestly?
Scouse in On a Budget 3 months ago
Running a small chest freezer in my static caravan off a 200Ah LiFePO4 (Fogstar Drift) and genuinely not sure if I've got enough capacity to get through the night without killing the battery. The...
SmartSolarNerd in Q&A 3 months ago