This is my first draft at making a standalone XT Lock, however it's based on a design I've been using built-in on a drone for 6 months without a single unplug, so I'm quite confident about the locking part.

Requires an XT60-H connector (the ones that come with a plastic cover).

Works with every lipos, but for batteries that use an XT60-H (looking at you SMC) you will want to cut off the plastic cover on the XT60.

Let me know how you like it or how you believe it can be improved!