3D print project: fix Black and Decker Pivot vacuum's battery with Milwaukee M18 lithium ion

I love my small and super compact Black and Decker vacuum. Sadly, the battery was dying. The vacuum could only be used for under 1 minute before it shuts off itself. BD made it extremely hard to swap batteries though. The next best thing was to use my Milwaukee M18 battery and now the vacuum is working flawlessly as before!
things seen in this video
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vacuum: amzn.to/384lTaR
Milwaukee big M18 5.0Ah: amzn.to/3j6QYkw
Milwaukee small M18 1.5Ah: amzn.to/3B3hhOS
drill bit set: amzn.to/3kdb4ZT
Milwaukee drill set: amzn.to/387lOmJ
nuts and bolts from local hardware store
M18 adapter on Thingiverse: www.thingivers...
items used to make this video
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DJI OM4 stabilizer: amzn.to/3hoX4uA
LED light: amzn.to/2UznLFt
Samsung S21: amzn.to/36b3d8w
Davinci Resolve Studio: amzn.to/3bK97zB