Review on Hard EVA Travel Case - Perfect Fit for Tello Quadcopter Drone by Hermitshell by Jennifer Katz

Poor design, obviously untested - batteries will not stay in their intended slots. Your Tello rotors. How hard would it be to: 1) make the battery compartments a bit smaller so the lid prevents them from moving when closed. 2) make the slots a little narrower so they stay in the batteries 3) add some sort of tie strap or clip or something over each battery slot