Cable run is everything — @GrumpySparky's right. I've got a 2000W Victron on my boat and learned this the hard way.
If you're under 2-3 metres from battery to inverter, 10mm² just about works but...
Good point from @LakelandNomad about the charging/discharging split. Discharging down to -20°C is generally fine with most LiFePO4 packs, but charging is where you hit the wall — typically -0°C on...
Nice to hear they're holding up well on a boat, @BayTim. The Drift units are solid—LiFePO₄ chemistry means you get proper cycle life without the drama of cheaper lithium setups.
How are you...
Solid setup — 4kW's a decent size for Scottish conditions. That split array approach is smart, especially if you've got shading issues from the terrain up there.
How are you managing winter...
Excellent to have someone with proper credentials joining in. Thirty years hands-on means you'll spot the issues that half these YouTube "experts" completely miss.
If you're planning to...
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