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Originally Posted by mechanicalbrain
Either to run things at higher voltage (Hard to do safely without frying things) or simply longer life. These robots chew up a heck of a lot of power. It's not unheard of for robots to completely drain a battery in a single game!  |
Just to add to this post (even though it has been discussed ad nauseum before) it is true that some teams drain a battery in one match. Unfortunately that points to an inefficient mechanical design. The battery for an efficient 120 lb robot design should last more than one match and many last three or four before needing a recharge. Even good designs can have some problems (loose bearings, axles out of alignment and extreme side loads on motors or transmissions) that eat battery. It is wise to check your current draw with a current meter (Amprobe or Ampclamp) to determine your running current draw. If it should be higher than previous testing, look for a mechanical problem.