Nope- I have ran it twice with it. It's a sub C pack made for 10th scale, but it doesn't have a mah rating or anything listed on it. It's all I have right now other than 1/18th scale packs. It's pretty funny - brushless Crt.5 with a Plettenberg, controlled by a K.O. Helios and powered by TYCO. Ha,ha,ha...