French researchers have announced a prototype of an 18650 sodium-ion battery ... However, lithium isn’t the only possible choice for rechargeable cells. Lithium has a lot of advantages.

So [Travis] decided to upgrade it to make use of the ever-so-common, 18650 lithium-ion battery. Not looking to purchase any components [Travis] performed this hack using simple recycled household ...

Most of the lithium ion batteries available today are coming ... manufacturing assets near Gainesville, Florida for rechargeable lithium ion 18650 cylindrical cells, the standard cell used in ...