[dcb]

Is it safe to say the battery did not make any unusual contributions or detractions from any of the test?

I suppose this may be viewed like asking if you were dragging the brakes on test 2, but verifying the state of charge before and after the test on a hybrid would help eliminate the possibility of the battery deciding to intervene, even without the operators knowledge. There can be lots of variables in a computer program (and variables in the folks who write them).