Yup not diluted at all. I did 10 chips at a time in a smaller bowl. Just enough hydrogen peroxide to submerge the layer of chips. Swirl, sit, swirl, sit. The hydrogen peroxide (3%) produced bubbles.
I have an ultrasonic and have never put hydrogen peroxide in it. Only dawn + tsp and that does not remove stains. It does, however, work amazing to clean dirty, filthy chips.