Power Bank Module Fast Charging QC4+PD3.0 22.5W

The charging process consists of three stages: trickle charging, constant current charging, and constant voltage charging. When the battery voltage is below 3V, the charging module is in trickle charging mode with a charging current of 300mA. When the battery voltage is above 3V, the charging module enters constant current mode, charging at full speed according to the set target current, with a power of approximately 21W. When the battery voltage rises to the target charging voltage (e.g., 4.2V), the charging module enters constant voltage mode, where the current gradually decreases while the battery terminal voltage remains constant. Charging ends when the charging current decreases to the charging cutoff current. If the battery voltage drops to 0.1V below the target voltage after full charging, charging automatically restarts. (Note: A voltage exceeding 4.2V is normal and will not damage the battery. If the indicator light is still flashing at 4.2V, it means the battery is not fully charged. A full charge is not solely determined by the charging voltage.)

The motherboard has a total of 5 USB ports: Type-A1 + Type-A2 + Micro-B + Type-C + Lightning.
Type-A1 and Type-A2 support QC3.0/QC2.0/AFC/FCP/SCP/PE2.0/PE1.1/SFCP/VOOC fast charging output;
Type-C supports PPS/PD3.0/PD2.0/QC4+/QC3.0/QC2.0/AFC/FCP/SCP/PE2.0/PE1.1/SFCP fast charging output, and supports PD3.0/PD2.0.

Switching charging
Up to 5A current, up to 95% efficiency
Supports JEITA specifications
Supports 4.2/4.35/4.4/4.5V battery types
Supports temperature loop control

Synchronous boost converter
Output power up to 22.5W, efficiency up to 95%
Supports wireless charging mode
Automatic load detection/light load detection
Supports low current mode

Outputs fast charging protocols
Supports PPS/PD3.0/PD2.0
Supports AFC
Supports FCP
Supports PE2.0/PE1.1
Supports OOC
Supports QC4+/QC4/QC3.0/QC2.0
Supports FCP
Supports SCP
Supports SFCP

Input fast charging protocol
Supports PD3.0/PD2.0
Supports FCP
Supports PE1.1
Supports AFC
Supports SCP

Type-C Interface
Built-in USB Type-C interface logic
Supports Try.SRC function

Supports BC1.2 DCP mode
Supports Apple/Samsung modes
Lightning Decryption
Built-in Lightning decryption function
Built-in 12-bit ADC
Built-in coulomb meter for accurate power measurement

Protection Mechanisms
Input overvoltage protection
Charging timeout/overvoltage protection
Output overcurrent/short circuit protection
Temperature protection

Note:
1. The external battery cable to the motherboard needs to be able to handle 10A of current. Use copper wire of at least 1 square millimeter; ordinary wire should be 1.5 square millimeters. It doesn't need to be too thick, but it also shouldn't be too thin, as this poses a safety hazard. (Because the battery draws a large current.)
2. The motherboard has a built-in protection chip; do not add a protection board to the battery. If you have one, please remove it and connect the battery cells directly to the motherboard. (Because the built-in protection chip generally cannot handle high currents; it will trip when the output power is too high.)
3. Those using alligator clips to clamp the motherboard for testing should not charge their phones. Don't ask why; simply do not use it this way. Soldering is required for charging your phone. (Many buyers are disobedient and complain about their motherboard being broken, unable to fast charge, or experiencing power outages and restarts. Please follow the instructions carefully and don't assume you know what you're doing.)
4: Use a 4.2V 18650/polymer/ternary lithium battery. Multiple 18650 cells can be connected in parallel if the battery is large. Do not use lithium iron phosphate batteries, disposable dry cell batteries, nickel-metal hydride batteries, lead-acid batteries, nickel-cadmium batteries, etc. Batteries cannot be connected in series. The battery level display may be inaccurate on the first power-on; please fully discharge the battery before fully charging. For the first charge, continue charging for at least 5 hours while all four indicator lights are on. This will not damage the battery, so don't worry.
5: The motherboard must be pre-set to the battery capacity. Therefore, please specify the approximate battery capacity in the notes or inform customer service. Otherwise, the pre-set capacity is 30000mAh for the case only and 20000mAh for the motherboard only. Alternatively, you can replace the resistor yourself later.