Hello, I have the problem of excessive weight on my Dji Phantom. - Phantom 1.1.1 - Tarot gimbal - GoPro Hero 3 - Fpv - 2 original 2200 mAh batteries with carbon support - Original motors - Original self tightening propellers Total weight of 1450 grams. Flight Time: 3.5 / 4 minutes, really too low. I do not understand where this weight comes from: it is the same configuration many use, but they have weights of 1150/1200 grams. Will you help me figure out how to lighten the Dji Phantom and how to get more flight time? Has anyone ever used powerful batteries, such as 2 battery 3000/3500 mAh? Thank you. Tom ps: I'm looking for a GoPro 3 protection case for Tarot Gimbal: who can help me?