Ryobi 1+ Battery Cap

I may be paranoid, but I feel nervous carrying unprotected batteries around in a bag with metal tools. I thought there had to be a solution, but I couldn't easily find them on Amazon, so I figured 3D printing was probably my best option for them.

After finding a couple other battery caps here on Thingiverse, I decided they didn't quite meet my needs, so I designed my own. This one is 2.5mm thick, which should hold up to repeated use, but is thin enough to not be bulky. It also covers the entire insert shaft of the battery, so it's less likely to be pulled off by errant tools.