to start out i am fairly new. i have had my quadcopter for about 6 months now with mixed results. ultimately it is up and running. it is tuned and flying stable however i loose altitude easily.

     getting to the point

What i am using

turnigy 9x transmitter/receiver

TOTAL WEIGHT 1124g  1.24kg 

sk450 frame

kk2 control board

30 amp mystery esc's

4x 286w 1200kv motors   not much info on thrust capacity but i'm looking for 600-800g thrust per motor.

wired 200 amp power distribution(power dongle)---now directly soldered

NEW:now moved to the ntm 300watt 800kv 

50watt 6a charger for charging the batteries power sourced from a 12v computer power source

 started with 8045 props(awaiting 11 and 1245 for testing) now thinking the 9inch will be best

battery 2200 30-40c.

now have a 5000 30-40c

immediately displeased with flight time less than 1 minutes, charge enough to tune the kk2 board and get  off the ground maybe 6 times for a few sec.

1st. maiden flight time is terrible, i see others with similar problem and little resolution. however control is pristine with 2200 3s lipo, should i increase battery size? and increase the prop size. i notice the motors where fighting each other until i tuned the board.

 bought a 2 cell 5000mah on accident, ran it anyways guess it was overcharged because it was 11.68v when i received it and first flight was almost 15 min then down to 3-5 after normal charge.

2nd. am i overlooking the draw on the battery? can someone clarify the equation to get the flight time

i thought it was 60/1* (mah/max)

 solved problem 1, kk2 with turnigy 9x arming,  both sticks down left

Solved problem 2 prop adapter flew off a few times.  lock screw reinforced with screw with slip guard

no longer an issue Problem 3  turnigy 9x mode 2 controller need to mod to mode 1, also do people prefer having the         rudder along with the same stick as the throttle or with the elevator.

problem 4 overall flight time is terrible, i cant figure out which compoment is producing the most waste of energy, probably the motors but now that i changed them it should still be better than it is.

so with my 1200kv motors i cant get anything close in the Ecalc it has plenty off thrust and a shit tone or draw im assuming it is level at about 50 % but sadly i don't think the motors are cut out for this quad

im just at a point where i think the only thing i could do is buy another higher capacity battery or pair another 2200

or just drop some cash and upgrade the motors to something around half the kv 

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update 1

so i bout 800 kv motors, things have improved a little bit, just removed the power harness and directly soldered all the wiring, cut down 80 grams, so now my quad with the 800 kv motors is 900 grams with out a battery or camera, (just aquired a cheap go pro black )

ecalc presently says i can get 7 minutes out of this i am getting 2

the flight time has definitely improved to a solid 2 min on 10in props 2200mah 3 cell 30-40c, going to change my limits and have pictures and videos up for the next update hopefully within a week

      thinking of purchasing a name brand battery next, after that i think its going to have to be the esc's

simon k anyone?

beyond that i have no idea what to do next, i really like working with the kk2, the fame seems to be holding up well i replaced two arms and they seem of good quality no sever. bending or twisting 

i would like to solicit a poll for your quadcopter build with flight time and maybe links.