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@FormerTeacher61 North Yorkshire grid doing its usual impression of a chocolate teapot — my static caravan Victron MultiPlus-II 3000 laughs in the face of Yorkshire Power's "creative"...
Copper Maker in Off-Grid Cabins 2 months ago thumb_up 3
@Jock had similar grief on the narrowboat last summer — alternator via Orion into a AGM bank and voltages looked all over the place until I realised my sense wires weren't connected properly.
Solar Julie in Batteries & BMS 2 months ago
So I've finally got my 3kW rooftop array feeding into a Victron Multiplus-II 48/3000 alongside a 200Ah lithium bank, and honestly the setup works a treat except for the grid compliance headache.
Harry Morgan in Inverters & Chargers 2 months ago thumb_up 4
Currently running a 400Ah 12V lithium bank (four Fogstar Drift 100Ah cells in parallel) on my 58ft narrowboat, paired with a Victron MultiPlus-II 12/3000.
Suffolk Explorer in Marine & Boat 2 months ago thumb_up 2
Great thread, really useful discussion from @ExFirefighter42, @Steve1993, and @BatteryBarry. One thing worth flagging for @TransitConvert specifically — if your garden office is a separate...
Andrea Hamilton in Inverters & Chargers 2 months ago thumb_up 1
@GazKelly75 split charge relays are fine for flooded/AGM but the issue is voltage drop — by the time the relay kicks in and the alternator's pushing through, you're rarely hitting a proper...
FX_Power in On a Budget 2 months ago thumb_up 3
@MV_Marine Floating tariffs are brutal at the moment — you've got almost zero control over your outgoings.
Andrea Hamilton in General Chat 2 months ago thumb_up 5
SolarOwen | 847 posts @TelHall Short answer: technically yes, but your bottleneck is going to be charge rate rather than any harm to the cells.
Solar Owen in Q&A 2 months ago thumb_up 8
To add to what @SilverCaptain said — the load conditions matter a lot here. I noticed mine was noticeably quieter once both batteries were at a similar state of charge.
Defender Convert in DC-DC Chargers 2 months ago thumb_up 2
Hey @Tommo55, just to add to what @LiFePO4Fan was getting at — the other issue with a plain voltage-sensing relay is that your alternator has no idea it's talking to a LiFePO4.
Neil Smith in Q&A 2 months ago
Running a 200Ah lithium bank (Fogstar Drift) on my narrowboat and currently using a cheap 20A B2B charger off the alternator.
Panel Kate in DC-DC Chargers 2 months ago thumb_up 6
Great points from everyone above. One thing I'd add — have you checked the absorption-to-float transition time in your MultiPlus-II settings?
Compo55 in Batteries & BMS 2 months ago thumb_up 5
Noticed something odd yesterday while wiring up my new setup. My Victron SmartSolar 100/30 is reporting the battery voltage as 12.6V on the VictronConnect app, but my Fluke multimeter reading...
Wonky Drifter in Q&A 2 months ago thumb_up 2
@BatteryJason interesting one — I've had something similar on the narrowboat over winter. The Drifts seem to throttle themselves a bit once ambient drops below about 5°C, which I reckon is the BMS...
Copper Roamer in General Chat 2 months ago thumb_up 9
@TorDweller running almost the same thing on the boat here — Fogstar cells on the 48V bank too, small world. One thing worth looking at is the Victron Orion-Tr Smart series.
Master Adventure in Batteries & BMS 2 months ago thumb_up 9
@FrostySocket seriously, the suspense is killing me here! 😄 Out of curiosity while we wait — is this more likely to be a power supply issue to the Cerbo itself, or something the BMS is doing on...
Jake Crane in Batteries & BMS 2 months ago thumb_up 9
@GeoffHenderson80 @LesWood78 yes, from my experience each structure with its own meter point reference number (MPRN) needs its own G98 notification.
Sarah Clark in Q&A 2 months ago thumb_up 3
@HollyGaz and @OhmsLaw make a good point about the BMS involvement on a narrowboat setup — that's a layer of complexity van builds don't usually have to contend with.
Chris in DC-DC Chargers 2 months ago thumb_up 4
@GoldenTrekker worth looking at the AC-in/AC-out2 setup if you haven't already — out2 can be configured as a non-critical load output that drops when you're on battery, which is almost a soft...
Golden Maker in Solar Panels & Controllers 2 months ago thumb_up 2
Liam1998 | 156 posts | 🔋 Regular Contributor Something I've noticed that nobody's touched on yet — a lot of the "100Ah" AGMs floating around now are suspiciously light when they arrive.
Liam in General Chat 2 months ago thumb_up 2