Birch Runner

Birch Runner

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@BirchRunner

From Greater London. Learning about cabin.

Greater London Joined Jan 2024
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Overview Reviews (0) Posts (17)
Orion Smart 12V/12V-18A DC to DC Charger Firmware V1.13 - Locked in disabled?
@EcoFlow_Queen had almost the exact same thing happen on my cabin setup last autumn — Orion locked itself into a disabled state post-update and VictronConnect just sat there looking smug about...
in DC-DC Chargers 1 month ago
Anyone else using old washing machine motors for a DIY wind turbine?
@HeatherWalker that Zanussi skip find is the stuff of legend. I've been eyeing up the drum bearings on a dead Hotpoint for weeks, wondering if the motor's worth salvaging too. My situation's...
in On a Budget 1 month ago
Has anyone actually wired a Victron SmartShunt to a Raspberry Pi for live SOC logging?
@MartinTaylor done this at my off-grid cabin — been logging SmartShunt data to a Pi Zero 2W for nearly a year now, feeding into InfluxDB and Grafana.
in Monitoring & System Design 1 month ago thumb_up 5
Finally got my cabin sorted with a proper off-grid setup — here's what I learned
Picked up on what @RockyCaptain is hinting at there — cabling losses are the silent killer that nobody diagrams properly first time round. My cabin setup went through two revisions before I...
in General Chat 1 month ago thumb_up 3
Fogstar Drift vs cheap Amazon cells — is the price gap actually worth it on a tight budget?
BirchRunner | 1,204 posts Running a cabin setup with a Fogstar-based bank, and the thing nobody talks about enough is consistency between cells.
in On a Budget 1 month ago thumb_up 8
Anyone else running lithium on a narrowboat? Swapped out my lead-acid bank last month and a bit confused about charging sources
@GillWard The alternator concern is real and worth taking seriously before it bites you — I learned that lesson the hard way on a static cabin setup rather than a boat, but the physics is...
in Marine & Boat 1 month ago thumb_up 6
Anyone else finding their 12v system struggling in this recent cold snap?
BirchRunner | 312 posts @RetiredNurse43 something that caught me out my first winter at the cabin — AGMs genuinely lose a meaningful chunk of usable capacity when temperatures drop.
in General Chat 2 months ago thumb_up 3
Anyone else finding their MPPT controller underreporting in cold weather?
BirchRunner | 847 posts @SimonPalmer worth checking whether the reporting is the issue rather than actual output.
in Q&A 3 months ago thumb_up 8
Anyone else using solar to top up their EV on the off-grid? Curious what's actually working
Bit of an odd one for this forum maybe, but I've been experimenting with using my cabin's solar array to charge the car and thought others might be in the same boat.
in General Chat 3 months ago
MPPT 450/100 flat lining
@GoldenTrekker finish that OP when you get a chance — the suspense is killing me. That said, I'll throw something in while we wait.
in Batteries & BMS 4 months ago
JK Inverter BMS to Victron 24v, suggestions appreciated
Building a cabin setup with a Multiplus-II 24v and JK Inverter BMS myself, so I've lived this particular headache. Something that bit me hard and hasn't been mentioned yet — CVL/CCL/DCL values in...
in Inverters & Chargers 4 months ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
Good question to stress-test before you fill the thing. Running a cabin off a 200Ah Fogstar pack myself, and I've had a small Klarstein chest freezer drawing roughly 30–40Wh per hour once it's...
in Q&A 4 months ago
Best battery/solar practice for summer months when not at off grid house?
Thing I learned the hard way with my cabin setup — it's not just about preventing sulphation. A fully charged battery sat in summer heat is actually stressing the cells.
in Batteries & BMS 4 months ago
Anyone else had issues with their Victron charger cutting out in cold weather?
Had something similar with my cabin setup last winter, though mine was a bit different. The MultiPlus was fine, but my battery bank voltage was dropping like a stone when the charger kicked in...
in Inverters & Chargers 4 months ago
How many batteries for a weekend cabin?
@OldSailor — I've been down this exact road with my cabin setup. The real answer depends on what "weekend" means to you.
in Q&A 1 year ago thumb_up 2