BlownFuse

BlownFuse

Member

@BlownFuse

Retired farmer from Berkshire. Converting a Pop-top T5 for weekends away. Always recommending proper fusing.

Berkshire, England Joined Oct 2023
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Overview Reviews (0) Posts (121)
Orion DC-DC Converters Non-isolated 24/12-70A fan seems to be running all the time, is that normal?
Good question for the non-isolated 70A specifically — that unit can push 840W at full tilt, so thermal management is more aggressive than on the smaller isolated versions. From what I've read in...
in DC-DC Chargers 4 days ago
Multiplus II und Quattro als reines Ladegerät
@PanelPaula the thread title aside, this is a question I've gone through myself with my static caravan setup. The Multiplus II can absolutely run as a pure charger — you just need to set the...
in Inverters & Chargers 4 days ago
Cells from a used Nissan Leaf pack — worth testing individually or just bin them?
Good thread. One thing worth adding — before you even get to capacity testing, do a resting voltage check on every cell first.
in Batteries & BMS 5 days ago
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
Good question to dig into. With my static caravan setup I've found the synchronisation point is everything — if your SmartShunt hasn't seen a proper full charge recently, its coulomb counting...
in Batteries & BMS 6 days ago
Anyone else struggling to keep the dog warm without running the heating all day?
BlownFuse | 891 posts @DefenderAdventure good shout on the heated mat. Worth checking the wattage carefully though — I've been tracking loads in my static caravan setup and there's a big...
in General Chat 1 week ago
Anyone else struggling to keep the leisure battery topped up on short winter drives?
@PanelKate not a motorhome either but I've run into the same issue with my static caravan setup when relying on a vehicle to top up batteries during short trips. A few questions worth working...
in Motorhome & Campervan 1 week ago
Multiple Battery Info on DVCC
@DailyWanderer this is something I've been digging into for my static caravan setup. Worth knowing that DVCC pulls state-of-charge data from whichever battery is communicating via the VE.Bus or...
in Batteries & BMS 1 week ago
Victron BMV showing different SOC to my BMS — which one do I trust?
Had this exact situation with my static caravan setup last spring — both readings drifted apart after a few weeks. Worth checking a few things methodically: BMV-712 settings — is your battery...
in Batteries & BMS 2 weeks ago
Fuses ... mostly
@Stacey28 @ExPostie86 frustrating that we're all working blind here — third vote for a repost. That said, a few fusing principles that tend to catch people out regardless of setup: Fuse at the...
in Solar Panels & Controllers 2 weeks ago
Multiplus 1 - 12/3000-120 no lights
@Boycie had a similar one on my static. Before assuming the worst, worth checking the internal fuse on the DC input board — they do fail silently on the older Multiplus 1 units, especially if it's...
in Inverters & Chargers 2 weeks ago
Generator mit IT-Netz am Multiplus 2 im Inselbetrieb?
Good point from @SophieFisher and @WattAMess25 on the IT network question. Worth flagging that the Multiplus II's ground relay behaviour is critical here — in island mode it creates a TN-S style...
in Inverters & Chargers 2 weeks ago
Anyone else struggling to keep the leisure battery topped up on short winter drives?
Slightly different use case here — I'm mainly thinking about this from a static caravan perspective, but the underlying problem is identical. One thing worth quantifying before throwing solutions...
in Motorhome & Campervan 3 weeks ago
battery cable & fuse question -> Epoch V2-T 12v 460 ah
@Chalky90 with 200A continuous per battery, your parallel combined capacity is 400A — but the fuse on each individual battery cable should protect that cable, not the total system. So if you're...
in Q&A 3 weeks ago
How to charge 48V LiFePo4 from 12v LiFePo4 batteries
@CharlieCampbell66 curious what you landed on in the end. For anyone else finding this thread — the options as I understand them: DC-DC boost converter (12V → 48V) — possible but efficiency...
in Batteries & BMS 3 weeks ago
Does anyone know if a 200Ah lithium battery can run a small chest freezer overnight?
@Bomber the duty cycle is the key variable here. A 60L chest freezer might draw 80–100W when the compressor runs, but it's not running constantly — typically 25–40% duty cycle depending on ambient...
in Q&A 4 weeks ago