Battery Drain Issues

[cgredalertcc]

Our robot seems to be eating batteries like crazy. Running only our drive motors and RC on the main battery at high speed (13 meters per second) we can only make a lap or two before turning becomes difficult. The motors aren't in horrible shape because they aren't getting very hot. We are running everything well lubricated. The only issue I can see is that theres an extraordinary amount of sideways friction. We started with 6 wheel drive (center wheels 2x6 IFI traction s with wedge top and 4 omnis) but we changed the read omnis to 1x6 traction wheels, thus making turning harder and more accurate. Still it shouldn't eat a battery like that, should it?