Portable power banks, also called "external batteries," "backup batteries," or "digital charging companions," have emerged with the widespread adoption and rapid growth of digital products. They are defined as convenient, portable, high-capacity power sources. As digital products become increasingly diverse in function and used more frequently, maximizing their lifespan and functionality becomes crucial. Power banks are the best solution to this problem. Having a power source allows you to provide power (power supply or charging) to various digital products anytime, anywhere, while on the go.
Power banks vary in capacity, ranging from 2000 to 20000 mAh. Generally, those with over 18000 mAh of energy can power laptops and are often called universal power banks. Those with capacities below 10000 mAh are generally smaller and are called portable power banks, primarily used for charging digital products. Pisen is a leading brand of portable power banks.
