DC (Direct Current) is a type of electrical current that flows in a single direction. It is commonly used in batteries, solar panels, and electronic devices. In DC systems, the voltage remains constant over time, making it suitable for powering devices that require a steady and reliable energy source. Unlike AC (Alternating Current), which changes direction periodically, DC provides a consistent flow of electricity. This stability is essential for many applications, such as charging batteries and running electronic circuits. Overall, DC plays a crucial role in modern technology and energy systems.