Silver Spanner

Silver Spanner

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@SilverSpanner

Joined Aug 2025
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Victron Multiplus-II 48/3000 keeps throwing low battery alarm at 49v — anyone else seen this?
Been scratching my head over this one for a few weeks now. Running a 48v LiFePO4 bank (4x 280Ah EVE cells in series, so 16 cells total wired as 4S4P), managed through a Daly 150A BMS.
in Inverters & Chargers 4 days ago thumb_up 5
Swapped out the old engine alternator on my narrowboat for a 120A unit — worth it or overkill?
Had the original 65A alternator on my Beta 43 die on me last week, so rather than just replacing like-for-like I thought it was a good opportunity to upsize.
in Marine & Boat 1 month ago thumb_up 3
Anyone else noticed their MPPT acting weird during mixed cloud/sun days in the UK?
SilverSpanner | 412 posts | 🔧 Hands-On Tinkerer @BitsAndBobs the hunting you're describing is actually your controller doing exactly what it should — it's just more visible on days like that.
in Solar Panels & Controllers 1 month ago thumb_up 6
Anyone else finding cheap AliExpress BMS units are actually decent these days?
Picked up a 4S 100A BMS from AliExpress last month for about £8.50 delivered — JBD/Xiaoxiang branded, the kind you can hook up to a Bluetooth app and actually see what's going on with each cell.
in General Chat 2 months ago
Power loss and efficiency as a function of load (AC to DC / DC to AC) for MultiPlus-II 48/4K5 or 6K5
Really useful thread this. @George1975 one thing worth adding — the MultiPlus-II has that PowerControl feature but more relevant here is Dynamic Current Limiter, and honestly for low-load...
in Inverters & Chargers 2 months ago thumb_up 1