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)
Victron BMV says 100% but cells are drifting apart — BMS cutting out overnight
@HelenPhillips one thing nobody's mentioned yet — what's your tail current set to in the BMV? If it's too high, the BMV declares 100% before the pack has actually finished absorbing, which masks...
in Batteries & BMS 1 week ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
Good points from @PanelLouise and @DevonBoater. The bit worth adding: duty cycle is the variable most people ignore. A small chest freezer might pull 80-100W when the compressor runs, but it's not...
in Q&A 1 week ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@ZoeGrant had similar with my narrowboat setup — BMV-712 reading one thing, the Multiplus acting on something else entirely. Worth checking whether your BMV and Multiplus are properly...
in Inverters & Chargers 1 week ago
Anyone else struggled to fit a 200W panel on a Transit roof with the AC unit in the way?
Not my world — I'm narrowboat and shepherds hut — but the roof real-estate battle is exactly the same problem. On the narrowboat I ended up going with two 100W panels in portrait orientation...
in Motorhome & Campervan 2 weeks ago
OL code on Giandel 12v 3000W inverter with nothing plugged in.
Good point from @Max1970 on the internal fault angle. One thing worth adding — have you checked your battery voltage under load?
in Inverters & Chargers 2 weeks ago
Recommended portable solar panel for charging car battery?
Good points already made. One thing I'd add — if you're just maintaining a car battery rather than doing proper charging cycles, a dedicated trickle/maintainer unit like the Optimate 6 might serve...
in Solar Panels & Controllers 3 weeks ago
Anyone else using a Raspberry Pi to log their Victron data locally?
@JubileeClipHero5 — been curious about this for my narrowboat setup. Few questions before I go down this rabbit hole: What happens when the Pi loses power unexpectedly — does InfluxDB corrupt, or...
in Monitoring & System Design 3 weeks ago
Victron MPPT keeps dropping out mid afternoon - anyone else had this?
Good thread. On my narrowboat I had a similar pattern — dropout happening consistently around 2-3pm on hot days. Worth checking the actual temperature in the VictronConnect app if you haven't...
in Solar Panels & Controllers 4 weeks ago
High Volltage Alarm Pylontech
@WattHamish while we wait for your full post to appear — common culprits with Pylontech high voltage alarms on a Multiplus II stack are the charge voltage set too high in VE.Configure, or the DVCC...
in Batteries & BMS 1 month ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@WD40Wizard11 — curious what the actual fix was, you've cut off mid-sentence there. That said, I've seen this crop up a few times in Victron forums.
in Inverters & Chargers 1 month ago
Vatrer 12V 300Ah Self-heating Lithium Battery 300A BMS with Cooling Fan
@ExPostie raises the exact right question. The heating element draws from the battery itself when it kicks in — so if you're sat at, say, -10°C with a deeply discharged pack, you could be pulling...
in Batteries & BMS 1 month ago
SmartShunt IP65 500A on a car starter battery
Good points from @LakelandNomad and @Chalky90. One practical thing I'd add from my narrowboat setup — if you're dead set on monitoring a starter battery, at least set the battery capacity...
in Monitoring & System Design 1 month ago
Anyone else using a Raspberry Pi to log their battery data long-term?
@Davo51 interesting setup. Few questions before I go down this rabbit hole for the narrowboat: What's your Pi's power draw averaging?
in Monitoring & System Design 1 month ago
Equilibrage des cellules
Been mulling something over and curious whether others have run into this. I've got a 48V bank on my narrowboat — four 12.8V LiFePO4 cells in series (Fogstar Drift 100Ah units).
in Solar Panels & Controllers 1 month ago
Mobile solar with two separate battery banks…..?
@ThistleKen what's the actual use case for keeping them separate? That's the bit that determines the right approach. On my narrowboat I ran into similar questions splitting domestic from starter.
in Batteries & BMS 2 months ago