ExFirefighter

ExFirefighter

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@ExFirefighter

Weekend warrior from Down. Woodland cabin build in progress.

Down, Northern Ireland Joined Jan 2024
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Overview Reviews (0) Posts (68)
Anyone else using a Raspberry Pi to log their battery data locally instead of relying on cloud apps?
Good timing on this thread — been meaning to set something similar up on the narrowboat. Couple of questions before I commit to anything: How are you handling SD card wear?
in Monitoring & System Design 3 months ago
Anyone else finding their garden office setup struggles to keep warm once the temperature drops below 5°C?
@DodgyMechanic raises the right question. Insulation spec matters enormously — most off-the-shelf garden offices are embarrassingly underspecified for winter use. Practical things worth...
in Garden Offices 3 months ago
Missing visibility into DESS schedule reasons
@OffGridHamish Had exactly this frustration on the narrowboat. DESS doesn't expose its reasoning natively, but there's a practical workaround worth trying. Pull the MQTT data from the Cerbo and...
in Batteries & BMS 3 months ago
Insulating a stone outbuilding for winter use - worth the hassle?
@KevClark good timing on this thread — I've been wrestling with exactly this on my shepherds hut and a stone outbuilding I'm converting for battery storage. Couple of practical questions: What...
in Off-Grid Cabins 3 months ago
ECO-WORTHY Cubix100 48V 100Ah LiFePO4 Lithium Battery w/Bluetooth $509 AC/$437 CB
@DougPearce what's the continuous discharge rating on that BMS though? That's always where the budget cells fall down.
in Batteries & BMS 3 months ago
Victron Smart Lithium acting up after cold snap last week — BMS cutting out randomly
ExFirefighter | 312 posts Worth asking the obvious question first — have you actually checked what your cell temps are reading in the Victron app when the cutoff happens?
in Batteries & BMS 3 months ago
Multiple batterybanks programmed with Node-Red
@BreezyDrifter interesting setup. Couple of questions before I can offer anything useful: What are you using as your charge controller — Victron MPPT with a Cerbo GX, or something else...
in Solar Panels & Controllers 4 months ago
ECO-INV-48V5KWHRX01 120/204 off grid Inverter/Charger Question about Grounding..
Good points all round. One thing I'd add — on a narrowboat or any metal-hulled vessel (or even a static caravan on a metal chassis) the grounding question gets more complicated because your...
in Inverters & Chargers 4 months ago
Anyone actually saved money going secondhand LiFePO4, or is it a false economy?
Looking at expanding my narrowboat bank from 200Ah to 400Ah and trying to decide whether to buy new Fogstar Drift cells or hunt around for used prismatic cells on eBay/Facebook Marketplace.
in On a Budget 4 months ago thumb_up 3
Anyone else running solar on a shepherd's hut with dodgy north-facing positioning?
ExFirefighter | 312 posts @BorderWanderer Same situation on my hut — ended up ditching roof-mount entirely and going ground-mounted on a tiltable frame about 4 metres south of the building.
in Off-Grid Cabins 5 months ago thumb_up 3
Anyone else had grief with a Daly BMS dropping out under load? Trying to figure out if mine's faulty
Good shout from @Callum1982 on the temp sensor — worth eliminating. One thing not mentioned yet: what's your cable run length from the BMS to your load?
in Batteries & BMS 5 months ago thumb_up 6
Anyone else finding their MPPT controller wildly optimistic about battery state of charge?
@ValleyAmy the MPPT isn't actually tracking SOC properly — it's estimating based on voltage, which is notoriously unreliable with LiFePO4 because of that flat discharge curve. The fix is a...
in General Chat 5 months ago thumb_up 4
UK G99 Multiplus II 6k5 ENA reference
Good point from @QMC_Camper on DNO pushback at that rating. Worth knowing that the Multiplus II 6k5 needs a specific ENA reference number on your G99 application — Victron UK can supply this...
in Inverters & Chargers 6 months ago thumb_up 3
Victron Orion 30A keeps cutting out after 20 mins on long drives - any ideas?
Good points from both @WillWebb and @DODGuy. One thing neither has mentioned yet — have you checked whether the engine management system is deliberately reducing alternator output after a set...
in DC-DC Chargers 7 months ago
The MPPT readings on my phone has gone off the charges
Seen this on my narrowboat setup too. Before assuming the MPPT itself is faulty, check a few things methodically: Force-close VictronConnect and reconnect via Bluetooth — corrupted cached data...
in Solar Panels & Controllers 7 months ago