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Originally Posted by Solace
believe it or not, it actually takes less battery power if you have more motors.
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I believe it. We ran our QuardaMax G2 off a power supply with just the Chias and it drew like 3 amps no load and then we ran it with both the Chias and the drills and it ran at like 2 amps no load. And then squeeze a tube of grease in there and you'll harldy be pulling any current at all

j/k Anyway, I'm sure the more motors - less current relationship depends on the motors involved and is only true up until a point.
For a low weight robot, the cool thing about that is that you can pile on all the extra junk you want later (lights, horns, hampster wheels, random blocks of lead, etc.) because you'll have the extra weight to do it.
Our rookie year, our robot was like 80 lbs and we added a 20 lb bumper. Solid iron bar. Worked very well. All we had was a simple drill motor drivetrain and one arm. We still view it as a very effective robot that was well designed and played the game well.