E-M1/BLN-1 Battery airline storage.

I've been looking for a solution for a while however I haven't found something better than a tictac box for protecting the contacts on the batteries however I'm sort of leaning towards a thicker ziplock bag just to prevent the added bulk.

For the E-5 I had plastic clip on cases which covered the bottom of the battery, however I can't seem to find the equivalent for the BLN-1, does anyone have any suggestions for traveling through overzealous airports where they require batteries to have protective covers to prevent shorts?

If someone knows of a ready made solution I'm all ears.

 

I suspect I've thrown all my B+W filter cases out, I didn't like the square size because it wastes space so I've been using the older hoya/milo clear round cases. Hindsight is a bitch...

I guess I need to go on a hunt for filter cases, thanks.


Edit:

They look pretty good too... about the right size and tick all the boxes. I'll keep them in mind, thanks.

 

For AAA/AA's I use the powerpax caddies, I can have the positive terminal down in the caddy for charged and when I pull dead ones out to replace them put them back in the caddy with the positive sticking out so I can instantly tell by feel which ones are charged or not.