What is a battery ? MINI KNOWLEDGE SHOTS (ARTICLE)

 This is most easy question , but sometimes most misunderstood topic by some. 

MYTH: Battery is a source of  electric charge, which does our work and gets consumed.

TRUTH: Battery is a device , which produces/provides potential difference by harnessing/consuming chemical energy(generally). In turn this potential difference moves electrons/mobile-charge-carriers in closed circuit/loop , which finally accomplishes work.