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Originally Posted by Joe Johnson
There is another possibility. When we did some tests a few years ago, we found significant variation from battery to battery even among those that are nominally the same model number.
While I don't think that it is likely to be the factor that moves a robot from good to great, using the "good" batteries over the "medium" ones can't hurt.
Joe J.
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Last year when we did these tests, we checked two S ones from the prior year and two X ones from the current year. The two S ones were very close to each other in capacity, and the two X ones were very close to each other (within a few percent). One can't draw conclusions from a sample of two, but the moral of the story is that you need to test the capacity of your batteries and qualify them for competition use. A good battery does not make good robot great, but a bad battery will definitely make a great robot marginal.