Power Pole Charge Covers

I wanted covers to put over my Power Pole battery terminals to keep track of the ones I have charged (green cover) and which have been used (no cover), for a hobby of mine involving combat model warships. I loved the XT-60 covers (which I have printed for friends), but the only Power Pole ones I could find online were just a little too narrow in the middle gap, so I designed these.

I am considering as a follow-up adding "FULL" or "EMPTY" to the sides of these.