does anyone use really big batteries?

[Finnster]

BTW, the Zippy-H packs are supposed to be very very good packs at an awesome price. A number of airplane/heli guys claim they are enerland quality, but just not matched like you would get on a Neu, PQ, FP or other pack. They are too new to really know the long term stability of the packs, but for 1/3 the $, its hard to go wrong.

Zippy packs @ Hobby city

Zippy 6S 5000 mah (20C)
4800 25C

Or failing that, go 8S and less amps :)