SolarUKWM
Solar Enthusiast
Well, I've not run it to low voltage shutdown yet. The lowest I've hit was 9% while provoking the inverter to see the reaction to 15% and 10% points. It's good to know that the alarms/cutoffs work while you're stood watching and able to do something about it.
It's also good to know that at 10% -- when the inverter gives up and throws over to bypass -- that if the grid goes away, it comes BACK onto battery despite being "low" and carries on down to the next trip point (5% last-gasp) at which point I assume it's lights out. I didn't go there...
From early testing/notes, using change-in-SOC over time while discharging, it came out around 9.8-9.9kWh which was close enough to theoretical 10.24kWh to be satisfied the batteries were ok.
This is subject to measurement error (the load not being 100% constant over time) and 0-100% SOC not necessarily being the true size of the pack at that stage (high point/low point not fully found) and so if I repeated it, I expect a larger capacity.
