Flew 3 flights last week in 55 degree weather with calm winds. After each flight I checked the temp of both motors by feel. Neither one was warm to the touch at all. I've got extra amounts of heat conducting compound on both motors and made sure their heat sinks were tight by bending them closer. So far, it seems to be working.

Now, the battery seemed a little warm. The last battery I bought with the least amount of time on it felt warm, almost hot, and showed a little swelling. I set it on a patio brick out away from the house to see what it would do. It cooled down and the swelling went away. The balance was normal according to the TP balancer. Charged it up under close supervision last night and it seemed to be normal.

What do you think? Fly it or trash it?