DJI Drones - low battery level

I have only one battery at the moment, as the fly more combo is not available yet where I live

The battery was charging, but I wanted to catch the last bit of twilight before full night

so I decided to fire the drone up, even though the battery was just above half level

I had previously done some night footage in manual mode and the results were very disappointing

so this time I wanted to try the auto mode to see if some magic would happen

But as you can see, the footage is still extremely dark, even though it was not yet full night

But this is a matter for my next video, about footage quality

As you can see from the screen recording, I took off with about 15 minutes of flying time, which is a bit too tight