I went and bought a battery holder from radio shack tonight. http://www.radioshack.com/product.as...5Fid=270%2D414
i hooked the thing up with 2 extra batteries, holy sh*t this thing hauls, i have the skyline with the stage 2 motor with the 11 tooth. and the best part is the battery holder was only $1.06, and i already had the extra batteries.