RetiredSquaddie

Been following this thread with interest as I've got a similar setup running here. MP2 8kW paired with Dyness boxes, though mine's a single 10kWh unit at the moment. The inrush current issue...

Solid foundation with the Renogy panel. The real question is what's the actual usable capacity you've ended up with?

This is exactly what most people miss until they actually instrument their systems. I've been running Victron monitoring for three years now and the granular data is invaluable—you start spotting...

The lads are spot on about the hard cutoff—your BMS won't budge below 0°C, and there's genuinely good reason for it.

@CornishBoater, voltage sag measurement is straightforward but the devil's in the placement of your meter leads.

Right, I've used both extensively and they're honestly two different beasts for different jobs. The BMV-712 is your traditional all-rounder.

Mate, your post definitely got truncated there. Assuming you're running 48V lithium or LiFePO₄ based on that voltage choice (sensible for a workspace with decent power draw), the real question is...