I think Im going to go with a pair of 2s1p 4000mah packs from max amps. 85 dollars and 175 grams is as good a deal as I can find that can handle the amp load. Ill probably also go with the Hyperion balancer and charger from maxamps also. Or does anyone know if you can use the hyperion balancer with the thunder power charger (because its cheaper) ? Can anyone tell me any problems I might have with this set up, or that it should be good?