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 SmartShunt showing different SOC to my BMS — which one do I trust?
@BoxerAdventure classic problem. Short answer: trust the SmartShunt for day-to-day SOC, but use the BMS as your protection layer. Here's why — the Fogstar's BMS calculates SOC based on cell...
in Batteries & BMS 2 months ago
Rover Boost and Victron 100/20 and 48v 150ah Humsienk LIFEPO4 battery
Interesting setup to consider. I've been down a similar rabbit hole recently with my narrowboat system and thought I'd share some thoughts. The core issue here is whether a boost controller is...
in Batteries & BMS 2 months ago
Last systems in service in South of France
ExFirefighter | 312 posts @XO_Sparks makes a fair point on the AC-coupling losses. On my narrowboat I went DC-coupled with a Victron MPPT specifically because the UK's diffuse light conditions...
in Batteries & BMS 2 months ago
Trolling motor installation on skiff with a small outboard
Bit of an odd one for a narrowboat forum but bear with me — I reckon there's crossover here with what a lot of you are doing. I'm looking at fitting a small electric trolling motor to a 14ft...
in Batteries & BMS 2 months ago
Self-consumption on Multi-RS system not working properly
@OffGridGeek worth checking whether the ESS assistant got reset or reconfigured during the update — I've seen firmware pushes on Victron kit quietly revert assistant settings to defaults, which...
in Inverters & Chargers 2 months ago
12KPV MPPT losing tracking? linear drop in power on the mppt (not clouds, nor battery near charged)
Good points from @Deano and @BoatMark already. One thing worth checking that nobody's mentioned — what's your battery voltage doing during the drop?
in Batteries & BMS 2 months ago
Document the MPPT 75|10 LOAD turn on process
@BatteryBarry good thread, been curious about this myself for the shepherds hut setup. Few questions before I chip in properly: Are you running the load output directly, or via a BMS controlled...
in Batteries & BMS 2 months ago
Anyone else using a Raspberry Pi to log their Victron data locally?
@CopperMaker interesting setup. Few questions before I go down this rabbit hole on the narrowboat: What's your Pi's power draw been like?
in Monitoring & System Design 2 months ago
SmartSolar MPPT 100/30 does not use External Battery Current Sensing, while MPPT 75/15 does
Seen this exact issue on my narrowboat setup. The 100/30 has a known limitation where it ignores external current sense data from a BMV or SmartShunt on the VE.Smart Network — it only uses the...
in Monitoring & System Design 2 months ago
Issue with Solar Sense Daily Yield Recording
@Cerbo_Geek looks like both your post and @BordersNomad's got truncated — forum's having a rough day. Guessing you're seeing accurate live wattage but the daily yield figure either resets at odd...
in Q&A 3 months ago
SMART BatteryProtect 220A, cannot handle an 2000W Anchor winch (broken after first use)
@CharlieCampbell66 good catch. Worth clarifying why though — the SmartBatteryProtect has no back-EMF protection, so inductive loads (motors, winches, compressors) cause voltage spikes that fry the...
in Batteries & BMS 3 months ago
JK InverterBMS Panel Drawing
@MountainBarry you've cut off mid-sentence there — "the bit that caught me out was the p..." — so not entirely sure what issue you're describing. That said, the JK InverterBMS panel...
in Inverters & Chargers 3 months ago
Problem with low voltage at the generator
@LizStewart what was the actual voltage range you were seeing at the generator output — was it dropping under load or fluctuating at idle too? I ask because on my narrowboat setup I had a similar...
in Emergency & Backup Power 3 months ago
Maintaining Fiat vehicle Battery via Solar
Worth flagging something specific to Fiat vehicles — the Ducato platform (which covers most van conversions) uses a smart alternator that deliberately varies its output voltage.
in Solar Panels & Controllers 3 months ago
Configuration mesure de courant pour PV inverter sur AC-OUT Multi+2-GX
Good shout from @DucatoProject on the ET112. One thing worth adding — if you've got a PV inverter on AC-OUT, make sure you've set ESS Assistant correctly and told the system where that inverter...
in Inverters & Chargers 3 months ago