We got solar panels a couple of years ago, and didn’t really monitor it too closely. Just let it exist.
We recently got a battery also, 20kWh.
Initially the configuration was incorrect, limiting the charge rate to 150A, but I did some research and found out it should be 200.
The config change happened today. We get free electricity from 11am-2pm, and so can charge the battery in that time.
This was an overcast day, in the middle of winter.