A lithium-ion battery or Li-ion battery is a type of rechargeable battery. Li-Ion batteries have one of the highest energy densities of any battery technology today. Compared to the other high-quality rechargeable battery technologies (nickel-cadmium or nickel-metal-hydride), Li-ion batteries...

Etiquette is the set of conventional rules of personal behavior in polite society. Usually in the form of an ethical code that delineates the expected and accepted social behaviors that accord with the conventions and norms observed by a...