mostly for flow actions you need at least some meters installed. did you do that? if so then you can use the battery growatt device even with no battery.
it save me from making a lot of devices and for battery it is a requirement to make it work.
mostly for flow actions you need at least some meters installed. did you do that? if so then you can use the battery growatt device even with no battery.
it save me from making a lot of devices and for battery it is a requirement to make it work.