Go back
Latest news about#

battery life

Avatar

Electric battery

Source of stored electrical energy consisting of one or more chemical cells

A battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, mobile phones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells, however the usage has evolved to include devices composed of a single cell.

Njus App - for news lovers Njus App - for people that loves news

Do you know that Njus collects all news into one app? You select what categories and places you want to follow and get your own personalized news feed. It has never been easier to get important information and be fully updated. Njus is totally free to use!

Register an account to save your preferences.
Check your inbox after a confirmation email and click on the link in the message to activate your account
or