I just got done upgrading every thing on my cx2 (except the longer shafts) Just before I replaced the stock motors for the 180's my run time went down from 8-10 min. down to about 5 min..Even with the new motors its down at about 5min. The batteries only have about 20 flights each (I have 3). Is it possible its the 4 in 1? I havent checked the full charge voltage yet .Does anybody know what thats supposed to be? It flys great other wise .I can hover it in my living room and put the controls down and it stays there untill it starts to drift to the floor even on full throttle.Otherwise outside I fly it hard and fast .Help!!![sm=spinnyeyes.gif]