Travel Case for E-flite or Tiny Whoop 1S Batterys

I am going to be traveling soon so I wanted a case that would meet the TSA requirement that all batteries had to be isolate from each other so that the contacts can not touch each other, or other batteries. I designed this case to fit that bill. Can double as general transport and storage for the eflite batteries.

Update: I have recently returned from a trip out of country where I used this case. I got through TSA as well as the foreign countries security on the way back without issue.