This is the entire salvaging process of a Makita power tool battery. These are high discharge 18650 cells and you can basically power anything with them. The sky is the limit. Actually the sky is not the limit as you can fly a drone with it, too! Here are some other videos where I used the batteries for:
1. Quadcopter:    • Drone battery hack: Can a power tool ...  
2. RC car:    • RC car battery hack: laptop 18650 cel...  
3. Plexiglass cutter:    • DIY: Home made Cordless Plexiglass/Ac...  
4. More to come...