This cover snaps in place over the Battery Mod. It uses the four slots in the battery tray and slides forward to latch onto the release button the same as a Solo battery.
This cover is tested with the Battery Mod sold on this website. It may or may not fit on your DIY battery mod depending on the size of you battery mod.
Weight: 50 grams
See how it works: https://youtu.be/GQydUpisBBE
*This is not for use with a BMSOne. The BMSOne is too tall to fit under it. This cover is only for use with the Battery Mod found here.