How much battery do I need?

[zeropointbug]

I am running 1p pack right now, I switched back from my other 7s2p pack, I kinda like it, not as punchy, but the Revo feels more agile.

Oh, and I made a mistake, my Revo is just under 10 pounds actually, not a little over 9lbs.

Well, the higher the voltage of your pack, the higher the potential amp draw, but it depends, it can draw some amps in the right conditions when voltage drops a lot. My pack usually drops to 19volts from 23v nom., but also, I am finding that the nom. voltage is something more like 3.1 - 3.2v/cell for A123... still experimenting!