I finally got it the charge badge!
ways to do it are to double tap y to throw the ball away, so that you give the other team more fastbreaks. on fastbreaks, a lot of times they speed boost, so look for that and try to draw the charge around the three point line. another way is to draw charges when the cpu goes for the pick and roll, and cut off ball handler with a charge, who will often go towards the screen. only took me about 3-4 games once I figured it out.