SmartSolarNerd

SmartSolarNerd

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@SmartSolarNerd

Smallholder in Northumberland running everything on 48V solar. Runs a YouTube channel about off-grid living.

Northumberland, England Joined Jun 2023
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Overview Reviews (0) Posts (30)
Get prices in Node-red directly out the Cerbo GX
So once you've actually got the price data landing in Node-RED — what's the next bit? Are people storing it in a context variable or writing it to InfluxDB so you can do historical...
in Monitoring & System Design 3 weeks ago
Victron Orion TR Smart non-isolated DC to DC charger 12-12- 30 Amp making weird static/buzzing sound
@TorJake so the switching frequency is literally audible? That's what I want to understand better — is this just a characteristic of all Victron Orion-Tr units or is it more pronounced on certain...
in DC-DC Chargers 3 weeks ago
Budget 12v 300ah lifepo4 battery? And good or best charger?
Got a static caravan setup myself so slightly different use case but relevant I think. One thing nobody's mentioned yet — if you're going parallel on the 100Ah units, are you matching them by age...
in Batteries & BMS 1 month ago
Anyone else using old washing machine motors for a DIY wind turbine?
@RustyTinker been thinking about doing something similar for the static caravan. Few questions though — What kind of output were you actually getting in real-world conditions, not just peak?
in On a Budget 1 month ago
Problems with MPPT RS 450/100 – Errors 27, 201, 215
Been having a nightmare with my Victron MPPT RS 450/100 at the static caravan and wondered if anyone else has seen similar. Getting error codes 27, 201, and 215 popping up intermittently.
in Inverters & Chargers 1 month ago
Brand new Multiplus 2 not powering up
@Mike1980 what ended up being the cause in your case? Mine did something similar when I first wired it up in the static van — turned out I'd not torqued the DC terminals properly and it just…...
in Inverters & Chargers 1 month ago
Anyone else using cheap Chinese PWM controllers or is it false economy?
Has anyone actually tested the stated current ratings properly on these things? Like with a proper clamp meter, not just trusting the display? Because I've got a static caravan setup with two 200W...
in On a Budget 1 month ago
Controller for 24v panel with 12v battery?
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...
in Batteries & BMS 1 month ago
Anyone know if a 200Ah lithium battery is enough to run a small chest freezer overnight?
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...
in Q&A 1 month ago
Anyone else's battery monitor acting dodgy when it's cold?
Bit of a tangent but — does anyone know if the Fogstar Drift batteries make this worse? Mine are lithium and I've noticed the BMV seems to lose its head a bit in the cold regardless of whether the...
in Monitoring & System Design 1 month ago
Splitting CAN & RS485 Port from LuxPower/EG4 Inverter to Battery using Ethernet Breakout Board, how to daisy chain RS485 Modbus with multiple devices
Right, so the thing that's caught me out here is the impedance matching on longer RS485 runs. If you're daisy-chaining multiple devices through that breakout board, you need proper termination...
in Inverters & Chargers 1 month ago
Anyone else's leisure battery draining overnight? Getting annoyed with this now
@DownsCruiser's multimeter method is solid, but a heads up—if you're measuring parasitic drain on a caravan, disconnect everything from the leisure battery first. I mean everything.
in Motorhome & Campervan 1 month ago
Can you run a fridge 24/7 on solar + battery without killing the system?
Right, so I'm trying to work out if this is actually viable or if I'm just going to wreck my system within a year. Got a static caravan setup with a 5kWh LiFePO4 bank (Fogstar), 3.5kW of panels,...
in Q&A 1 month ago
Has anyone had issues with their Victron Multiplus cutting out when the battery voltage drops below 48v?
Yeah, that'll be the LVD settings on your Multiplus. Check your VE.Configure software — the disconnect threshold is usually set quite high by default, around 48V or sometimes lower depending on...
in Inverters & Chargers 1 month ago
EV charging from solar — is it practical?
Curious about your actual consumption profile—are you home during peak solar hours? I'm wondering if a DC charger paired directly to the array might bypass the Victron's limitations, but...
in Q&A 1 month ago thumb_up 1