Battery Capacity: 30,000mAh (approximately 111WV nominal voltage)Output Ports: Usually features multiple USB Type-A ports and sometimes an 18W–22.5W fast-charging USB Type-C port.Input Ports: Micro-USB and/or USB Type-C for recharging the power bank itself.Display/Indicators: Simple LED indicator lights or a basic digital percentage readout screen.Safety Protections: Basic built-in circuit protection against over-charging, short-circuiting, and over-current.Portability: Heavier build weight, typically ranging between 450g to 600g due to the high-capacity cell count.