[Make It Extreme] is working on a battery pack for an e-bike that has some interesting design features. The guts of the pack are pretty much what you’d expect – recovered 18650 lithium-ion cells.

Ten 18650 cells commonly are used as the energy source for power tools, such as drills and saws. Battery packs that have dozens of cells are used to power micro-mobility devices, such as stand-up ...

In these circles, many elect to create their own battery solution, relying on the popular 18650 cell as the basis for the pack. These can be readily harvested from laptops, power drills and other ...