Q. What does DC mean on a power bank?
A.On a power bank, "DC" denotes that the gadget runs on direct current (DC). Unlike alternating current (AC), which swings direction frequently, DC is a type of electricity flowing in one direction. Since power banks contain energy in batteries, which by nature produce DC power, they are DC devices. An AC outlet charges a power bank from which the AC power is converted into DC to charge the battery. The power bank charges your gadgets DC power when you use it. DC power drives most of the electronic devices like computers and cellphones. Power banks with DC output so enable their usage with these devices. For recharging small devices, the DC power of a power bank is reliable and efficient, therefore shielding them from damage resulting from AC power fluctuations. Usually, the "DC" symbol on a power bank indicates that it is designed to supply direct current—best for portable devices.
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