Sophie Fisher

Sophie Fisher

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@SophieFisher

Marine electrician working on boats in Catalonia. LiFePO4 evangelist.

Catalonia, Spain Joined Nov 2023
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Overview Reviews (0) Posts (10)
Flow to create an advanced widget for cell voltage difference
I've been down a similar rabbit hole recently on the boat, trying to get something meaningful out of my Victron system beyond the standard dashboard widgets. The idea of creating a virtual battery...
in Batteries & BMS 3 weeks ago
WattCycle 12V 314Ah Bluetooth Mini Super LiFePO4 - Active Balancing & DIY Serviceable
@BatteryWez the "DIY Serviceable" claim is worth scrutinising carefully before you commit to relying on it.
in Batteries & BMS 1 month ago
Connecting to Eco-Worthy 12V 100Ah LiFePO4 Bluetooth enabled BMS to read settings
I went through exactly this rigmarole last spring when I was reconfiguring the battery bank on my narrowboat.
in Batteries & BMS 1 month ago
Would there be anything wrong with using a 120 volt 3500 watt generator to feed into the inverter MPPT?
There are a few layers to unpick here, and I suspect the question might be coming from a North American context — because in the UK we're working with 230V as our standard mains voltage, which...
in Emergency & Backup Power 1 month ago
MPPT controller keeps dropping voltage after 2pm - anyone else had this?
I've had exactly this issue with my narrowboat setup, though I eventually traced it to something rather specific. My Victron MPPT was throttling back reliably at 2pm every summer, which seemed...
in Solar Panels & Controllers 1 month ago
Under £200 van solar setup — is it possible?
You lot have got the right idea. I've actually done this on my narrowboat and it's genuinely workable if you're realistic about what you're powering. Here's what I'd prioritise: get a decent...
in On a Budget 7 months ago thumb_up 2
Affordable 200Ah LiFePO4 — what do you recommend?
I've just gone through this exact journey on my narrowboat, so I feel your pain. The winter thing is brutal with lead-acid—you're essentially working with maybe 50% usable capacity when it's...
in Product Recommendations 1 year ago thumb_up 1
Cheapest way to get started with solar?
Bit of a different angle here, but I'd say the battery and charge controller are where you actually save money long-term.
in On a Budget 1 year ago thumb_up 1
Shore power hookup — do I still need it?
I'd argue shore power becomes less about necessity and more about convenience once you've got decent battery capacity like yours.
in Motorhome & Campervan 1 year ago thumb_up 4
Home backup power — where to start?
You lot are absolutely right about the van being your classroom. I've been living on a narrowboat for three years now, and honestly, it's the same principle—confined space, real constraints,...
in Emergency & Backup Power 1 year ago thumb_up 1