@WattLiz makes a fair point about ruling things out systematically, but everyone's dancing around the elephant in the room: temperature compensation.
If your battery bank is in a well-insulated...
@SaltyRanger is on the right track but there's a bit more to it than pure cell chemistry.
The JK specifically has a known quirk where the NTC temperature sensor — that little black blob usually...
Running a small chest freezer off a 200Ah lithium (Fogstar Drift, for the record) on my narrowboat and in the garden office at various points — curious whether anyone's actually done the maths or...
The bit nobody mentions: check what your existing system's negative rail is doing.
Plenty of company-installed systems I've inspected are running a common negative that goes through the solar...
@RelayNomad and @BoxerDream — agreed on the brand irrelevance, but the deeper problem is the irradiance assumptions baked into these tools.
@Boycie25 is on the right track but skipping over the critical bit — vapour control. Internal insulation on stone traps moisture between the insulation and the wall, and you'll be peeling off...
@NorfolkVanLifer raises something I've seen bite people repeatedly — cable sizing gets done on peak voltage assumptions from lead-acid days, then lithium's flatter discharge curve means you're...
@FellKev worth flagging something neither you nor @EmmaEdwards82 have mentioned — the Orion Tri's input voltage range bottoms out at 6V but the absorption behaviour matters more than people...
SomersetNomad | 312 posts
@HighlandOffGrid The elephant in the room with gasifiers is tar management — everybody talks about the kW output, nobody talks about cleaning the bloody thing every 40-50...
@DalesWanderer — finish your sentence, man. Assuming you're about to say it's struggling.
Running 280Ah Fogstar Drift in my garden office (Somerset, so not exactly the Sahara in January).
@SuffolkDweller one thing neither @OffGridJack nor @SmartSolar_Queen has touched on yet — the UPS function setting. By default the Multiplus switches to AC-in with a brief interruption.
Running almost identical monitoring stack on the boat — Pi 4 pulling Victron data over VE.Direct into InfluxDB with Grafana dashboards.
SomersetNomad | Member
@DefenderWanderer 600W nameplate on a canal that's essentially a tunnel of alder and willow is largely decorative, I'm afraid.
@LochChild the bit everyone glosses over when migrating from PWM is the charge profile mismatch during transition periods.
Your old PWM was essentially a blunt instrument — slam voltage at...
@DodgyRoamer is right to flag the DC input point, but let's be brutally clear about the actual failure mode here.
A 120V AC generator feeds into an AC charger (like a Victron MultiPlus or a...
