Submitted by bruceplmail on Tue, 2018-07-24 11:58
I have a solar array and a Powerwall 2. I typically run on my PW 2 on Self-Powered mode with a low cutoff of 25%. Yesterday a heat wave was in progress and I wanted to switch to the Backup-
Only mode to preserve the charge which was then about 45%. Why? In case of a grid outage, (which in fact happened later). Using the app I switched to backup mode but the PW continued to discharge. I couldn't stop it discharging. It was late afternoon and the solar array was still producing power.
What am I missing? How do I stop the PW from discharging in real time? How do I switch from Self-Powered to Backup-Only in real time?