If you are using a 2.4Ghz system, regardless of manufacturer, I'd stick with 6 volt packs. Cheap insurance, for sure.

All of my planes, except one, are on 6 volt packs, two have a pair of 6 volt packs. All have Voltwatch, for reasons previously explained and debated.

My choice is easy. 6 volt packs of perhaps a minimum of 1100 mah capacity. The higher the better (within reason).

CGr.