After several successfully flights with 3s lipo and standard PID settings i decided to change out my 3s with 4s 5000mAh batteries.
But something stranges happen during waypoint flight in AUTO mode.
It was set to climb 150meters in a 1km flight path. Everything started just fine, spot on and i was really happy with the result due to the wind and gust.
When the Hexa was almost at 150mtr height, it suddenly smacks the throttle to the max 100% and the copter goes to the sky like a rokcet.
i grab my RC and switch the mode from AUTO to Stab and was able to get it down without any crash.
My Gopro camera was also onboard. ;)
After i tried one more time, Set point of 100mtr .
When the copter reach 60mtr, same thing happend, it suddenly gives 100% throttle and goes like a rocket up in the sky,
Im not able to find the root couse to this problem. Please help..
The log also showing 11sat count at all times.
Can this be becouse of 4s lipo??? or is this just a coincidence?
When using 4s, i ha to change my Rate P from 0.150 to 0.110.