Anker battery - Anker 335 PowerCore - with a capacity of 20,000 mAh

Basic specifications Capacity and energy Capacity: 20,000 mAh Total energy: high for powering multiple devices Ports and connectivity USB-C port (for fast charging and power output) Two USB-A ports (to connect two devices at the same time) Fast charging support for compatible devices Smart distribution of power to each port Compatibility Compatible with: Smartphones Tablets Smartwatches Other small devices Protection and safety Protection systems against: Overcharging Overcurrent Excessive heat Electrical short circuit Design Compact size suitable for daily carry Strong materials to withstand repeated use Usage Travel charging Backup charging for long sessions Power for more than one device at the same time