Capacity: Check the power bank's capacity, typically measured in milliampere-hours (mAh) or watt-hours (Wh). A higher capacity means more charging cycles for your devices. Output Power: Look for information on the power bank's output specifications, especially if it supports super-fast charging technologies. Common fast charging standards include Quick Charge, Power Delivery, or proprietary technologies by specific device manufacturers. Input Power: Verify the input power specifications, as this determines how quickly the power bank itself can be recharged. Ports: Check the types and number of ports available on the power bank. USB-A, USB-C, and other ports may be present. Design and Build: Consider the physical design, build quality, and materials used in the construction of the power bank. Additional Features: Some power banks come with extra features such as LED indicators, wireless charging capabilities, or pass-through charging. Charging Cable: Confirm whether the power bank includes the necessary charging cables or if you need to use your own.