I have one of these :
18650 Battery Case. I'm getting ready to throw the evercool chip in it, and I'd like to know...how do you guys cover the usb shaped hole in the top? I've been thinking of everything from cutting a peice of plastic from a broken battery box to filling it with epoxy putty before I drill. But I noticed you guys have used them, and I thought, "Why experiment when these guys already have?"
