I was out flying the anafi this morning. The battery on the drone should have had a full charge. I pressed the start button. No status lights and drone would not start. Changed to another battery, everything was fine. Back home I put both batteries on charge. The one with the "No Status" flashed red LEDs a couple of times then started charging with green LEDs. It appeared to have nearly a full charge according to the now working status lights. Can anyone please tell me what is happening here?