I have been having this problem battery related since the begining.
My quadx uses:
arduino duemilanove
original wm+ connected to d12 without diodes or pullup resistores (i want it stable before retrying with nk)
kda 20-22l motors
escs ss 25/30
gaui 8 props
1hoch4 frame
700g without battery
My problem is that i can use all the batterys in the picture below except for the turnigy 2200. And with another turnigy 2200 that a friend has for his triwiicopter the problem is the same, the quad just oscilates a lot and goes up and down with the throttle still.
With the zippy bats all ok, the 800mah ones are a little warm after a very brief flight.
I am waiting for a zippy of 2450mah and 30c to test but i see a lot of people using this turnigy 2200 3s 20c and all ok.
I posted also a picture of the small board i have for connecting the escs and the plug for battery, can this board be the culprit?
![Image](http://i269.photobucket.com/albums/jj76/growlogs/quad%20X/Untitled.png)
![Image](http://i269.photobucket.com/albums/jj76/growlogs/quad%20X/21022011125.jpg)
![Image](http://i269.photobucket.com/albums/jj76/growlogs/quad%20X/21022011124.jpg)
![Image](http://i269.photobucket.com/albums/jj76/growlogs/quad%20X/21022011123.jpg)
![Image](http://i269.photobucket.com/albums/jj76/growlogs/quad%20X/21022011122.jpg)
![Image](http://i269.photobucket.com/albums/jj76/growlogs/quad%20X/20022011121.jpg)
Thank you all for reading and specialy Alex for his hard work coding.