well i got an mcx 2 off of someone and it worked perfect for like 10 flights.. then i noticed it was going good.. i had to kill the motor to avoid hitting a child and when i reset it up it was significatly under powered... with my 120 MaH lipo. I figured i just crossed the "threshhold" and it was just dying.... so i put in my fully charged 150 MaH lipo and it performed just as the 120MaH did when "dying".... i cycled through both batterys once more and the heli seems under powerd.. like it can't even stay hovering.. i examined under the canapy and nothing seems out of place or anything! i need help please.. i love this thing
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