Capacity: Power banks come in various capacities, typically measured in milliampere-hours (mAh) or watt-hours (Wh). A higher capacity power bank can store more energy and recharge your devices more times. Common capacities range from 2,000 mAh to 30,000 mAh or more.
Charging Ports: Power banks are equipped with one or more USB ports to connect your devices. Some may have multiple USB ports, allowing you to charge multiple devices simultaneously. The most common ports are USB-A and USB-C.
Output Current: Power banks offer different output currents, usually measured in amperes (A). A higher output current can charge your devices faster. Make sure your power bank's output current is compatible with your device's requirements.
Input Port: Power banks need to be recharged themselves. They come with an input port, typically micro-USB or USB-C, for connecting to a power source, such as a wall charger or a computer. Some newer models support wireless charging for recharging the power bank.
