NATIONAL BATTERY DAY. Get a charge out of National Battery Day! Observed each year on February 18th, this is a day to appreciate the convenience batteries provide to our everyday lives. ... A battery is used to change chemical energy into electricity by bringing the different chemicals together in a specific order.
Battery Day is an unofficial holiday which is celebrated on February 18th and is used to pay homage to the little energy source that makes our lives much easier. Batteries are ubiquitous to our lives and can be found in everything from remote controls and smoke detectors to cell phones and digital cameras.