Which battery packs regarding the weight are better for longest flight time 5S - 2x Zippy 5000, 2x Zippy 5800 or 2x Zippy 8000?

krleas meinte

This is 400 amps power board made on same princip as blctrl 2.0 on I2C bus

http://www.kopterworx.com/All-products-in-shop/Aerodrive-8-Power-board

Hi I just got the aerodrive 8 for my cinestar 8 I want to lift Red/BMCC and some Flir systems so I wonder what is the best motor/prop combination you recommend I have the MT 2820/7 830Kv 14/4.7 props but i am thinking maybe they are a bit too small

I am quite new to octocopter and would appreciate some advice on this issue. I would like to have something that gives a optimal power/performance for lifting up to 10 Kg. I run 2 pcs 5 cell 8Amp turnigy packs.

Thanks