Anyone can do small programing for minitor 48v-70v battery bank voltage and auto switch on off sonoff/welink for the device. Meaning when Voltage reach above 53.5-54v turn on sonoff device on and when battery lower to 51.5v then turn off the sonoff device
I willing to give a donation who can help to set this in my home assistance on welink device
Thanks
Regards
Kevin
Whatsapp - +6596397950