This is the document for 3DR Iris battery: http://3drobotics.com/wp-content/uploads/2014/01/extra-battery-document-v2.pdf
The ratings for the battery are 3s / 11.1V / 3500 mAh / 30C (105A)
1. I'm not sure I understand this standard discharge rating. 30C means the battery will discharge fully in 1 hour / 30 = 2 minutes? So the battery will be drained in 2 minutes? Except it doesn't...
2. The Iris is advertised as having 10 minutes flight time. So if I wanted to increase this flight time to say 20 minutes I would have to double the discharge from 105A to 210A? Is that correct? So I would have to put another 3s cells in parallel with the original 3s to make a 3S2P pack?
Thanks a lot