When you drain a charged Li-on battery, positively-charged lithium ions move from the anode to the cathode. This also triggers a flow of electrons, which can be used to power electronic devices.

Overall, the tested lithium batteries performed much better than the alkalines, especially in cameras, which tend to drain a charge quickly. But alkalines cost far less, and some perform almost as ...

This Tucson tech company looking to make waves in the EV battery market has hired a former GM exec as chief operating officer ...