The Charger just finnished.
The battery took back 2221 mah's. Its a 5000 mah pack.
So in 8 1/2 minutes I used less than 50%

I am going to recharge the other 3 batteries and see what average I come up with.
Some flights were less another may have been close to 8 minutes.

Hmmm, next time out I might have to up the timer to 10 minutes and see what that uses.