Capacity: Indicated in milliampere-hours (mAh) or watt-hours (Wh), representing the amount of energy the power bank can store.
Output Ports: USB Type-A, USB Type-C, or other ports for charging various devices.
Input Port: USB Type-C or Micro USB for recharging the power bank itself.
Fast Charging: Some power banks support fast-charging technologies to charge devices quickly.
Indicators: LED indicators to show the remaining battery capacity or charging status.
Design: Compact and portable design for easy carrying.
Safety Features: Overcharge protection, short-circuit protection, and other safety features.
Compatibility: Designed to work with various devices, including smartphones, tablets, cameras, and other USB-powered devices.