Yesterday we had a couple of grid outages, everything turned off but came back on again in a few seconds. I am not sure if my battery kicked in and took over or not! being a very sunny day and with a full battery we weren't importing from the grid anyway so when i look at my charts it there is no evidence of the grid failing. I'd like to know what happened as in my understanding the backup is supposed to kick within 25ms but this was definitely more than that!
I'd like to know in case it's not working at all?
all advice very much appreciated,
Mike