AC vs DC current

AC stands for “Alternating Current” and it, well, alternates as it changes direction periodically, DC stands for “Direct Current” and flows in a straight line. Without getting too technical, AC can be transported over long distances more efficiently, so this is why it flows out of your socket at your home and office. However, batteries in general are only able to store DC power.

The ev charger converts the AC power it receives from the grid into DC power to charge the battery.