LP-E6 Battery Holder for Gridfinity 2x2

I wanted a Gridfinity holder for my Canon LP-E6 Batteries for by R5, but that would let me store them with the covers. I prefer landscape photography, so I'm always throwing extra batteries in my bag, and prefer to keep the covers on them and ready.

This will store 4 batteries in a 2x2 gridfinity. The magnets are sized for press-in, and I've not had any retention issues with them.