Yep. multiple batteries and chargers....

You can get some amazing performance out of 3D models using only 10 cells and a hot wind brush motor.

For that matter don't pass over the small stuff until you see a Speed 400 racer fly. FAAAaaaassssttttt and big zoomy loops, and twinkle rolls that'll challenge your reflexes. And all from a $7 motor and 8 cheap cells.

And what happened to the poll? I'm only seeing the results and I'm sure I've never voted yet.