The battery pack is custom-made from salvaged and tested 18650 cells, as you would expect, which we reckon took an absolute age to make by hand. The whole project is nicely finished, and looks ...

The U.S. Consumer Product Safety Commission warned consumers against purchasing 18650 batteries — which ... communities for their e-bikes or custom battery packs. Columbia University professor ...

and replace them with a custom pack (Italian, Google Translate link) made from 18650 Li-ion cells. The build is a straightforward one to anyone familiar with lithium-ion packs, but to a battery ...