Just got my
Zippys in today and gave them a quick run around. Very happy so far and these batts pack quite a punch. Just a 5min test, but got 112A (~28C) @ 18V (3.6V/cell.) I also got a pair of zippy-h 4s 2100 mah batts for my CRT.5 with a 12s fiegao. I have a Neu 30C 2500mah pack as well. These batts felt just as powerful. I wanted to do some back to back comparisons, but the 1/8'' motor shaft on the motor snapped... Any know if you can get a replacement 5mm rotor for an S can?

oh well...
The big Zippy back was only $98. Temp was very cool at end of run. 2000+W and not at all stressed. :)