Originally Posted by DoomsDay
While I am a nano-tech fan, for the price they are not bad at all, compared to the eflite batteries. I have since switched to hyperions for even better performance since the fail of the UM corsair that I received, that could barely even stay in the air with its own batteries. That made me a believer in hyperions!
Why was your corsair a fail? I was going to get one until I heard some issues regarding COG placement and having to go to 5043 right away.