Solar-powered fountain

I bought this fountain at the end of 2023, but just got it working today.  It didn't help that I lost the controller for a few weeks, and then I mislaid the instructions. It's been out in the pond for a couple of weeks not doing much, but at least allowing the solar cells to charge the battery, so when I pressed the correct button today, it sprang to life right away. This morning, I'd a trip down to the vaccination centre to get my RSV vaccine dose. I asked when the next Covid booster would be coming - probably November was the answer.