QC4 QC3 Dual USB 5V 4.5A 22.5W Micro Type-C USB Power Bank Circuit

Ports & Compatibility:

Type-A: Dual ports support QC3.0, VOOC, PE2.0, and other fast-charging protocols.

Type-C: Bi-directional fast charging for input/output, with PPS/PD3.0 up to 12V.

Micro-USB: Supports QC2.0 fast-charging input.

Lightning Port: Supports 5V/2.4A charging.

Charging Modes:

Trickle Mode: Starts below 3V at 300mA for safety.

Constant Current Mode: Full-speed charging once battery reaches 3V.

Constant Voltage Mode: Gradual current reduction as battery nears full charge.

Specifications

Voltage Range: Supports 7V-24V input; optimized at 9V during fast charging.

Battery Support: Compatible with 4.2/4.35/4.4/4.5V battery types.

Protection Features: Includes overcharge, over-discharge, and temperature loop control.

Integrated Features: LED indicators, coulometer for precise charge monitoring, and auto-detection for load and light load.