The U.S. Consumer Product Safety Commission warned consumers against purchasing 18650 batteries — which are often used to power vapes and other small devices — due to the risks associated ...

This innovative LHCE-GPE enables practical solid-state 18650 cylindrical lithium metal batteries to operate at 4.7 V, achieving a remarkable energy density of up to 250 Wh kg −1. Furthermore ...

You can salvage lithium ... invest in a charger that is capable of running some capacity tests against the cell. Or if you’re a bit more adventurous, you can build this “Battery Health Monitor ...