Just purchased a T100, Basic ESC and the HiTech 646 Servo. I wanted to run a battery duration test on a MultiStar 14.8v, 4000mAh LiPO battery. I’m controlling with an Arduino Uno and running a simple sweep program with the T100 running speed up and down during the sweep. I’m running the T100 at the low end (1550 to 1650 ms). I noticed the ESC was getting very warm and gets hotter as I increase the speed. Not too hot to touch, but uncomfortable. I’m concerned if I have four of these units inside a closed area with not a lot of breathing room.
Is this normal for the ESC to get hot?