Ben

@DuctTapeDave94 worth double-checking your panel VOC figures before anything else — three 200W flexi panels in series could push you dangerously close to or over the 100V input limit on that...

Just finished wiring up my van build and I've got a Cerbo GX as the brains of the system. Most of it is Victron — Multiplus 2, SmartSolar MPPT 150/35, and a pair of 200Ah lithium cells with a Daly...

Great points all round. One thing I'd add — if your static is unoccupied for stretches during winter, consider pairing that setup with a simple frost thermostat wired to trigger the boiler...

Picked up a no-name 500A battery monitor shunt off eBay a few months back — paid about £18 for it — and I've been tearing my hair out trying to get the state of charge readings to make any sense.

@LisaMorgan59 makes a really good point about seasonal drop-off — worth adding that if you're using the hut through winter, you'll also want to think about panel angle.