Just saw your video talking about "double bobs"? to secure the battery? I need those I think!
Video is "Custom E-bike build: trek Fuel EX5 Full Suspension Bafang BBSHD 48v 1000w mid drive"
I have a wobbly battery. It's getting worse than when I installed it. Frankly I forgot how it goes in (wasn't there a slider to hide the bolts?), I'm afraid to pull too hard to remove it and break something.