Description
Support PD QC4+/QC4/QC3.0/QC2.0 Bidirectional Fast Charging Power Bank Circuit Board with Type C & USB Support
Upgrade your DIY power bank or battery project with this high-performance 22.5W Fast Charging Power Module. Designed for bidirectional charging, this compact yet powerful circuit board supports multiple fast-charge protocols, including PD, QC, PPS, SCP, and more.
With up to 96% efficiency, digital or LED display options, and comprehensive protection features, this module is ideal for 3.7V lithium battery packs such as 18650, 21700, and Li-Po cells. Perfect for custom power banks, industrial applications, and advanced DIY electronics builds.
Key Features:
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22.5W Fast Charging Output with bidirectional support
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Supports PD3.0, QC4+, QC3.0, PPS, AFC, SCP and more
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High efficiency up to 96%
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Digital display or LED lamp indicator options
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Automatic load detection & light load detection
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Designed for 3.7V lithium batteries 18650 and 21700
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Parallel battery supports only, not series
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Compact design suitable for DIY and industrial projects
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Mini Fast Charging Power Bank Module |
| Output Power | Up to 22.5W |
| Charging Current | Up to 5A |
| Efficiency | Up to 96% |
| Output Efficiency | Up to 95% |
| Battery Compatibility | 3.7V Lithium Polymer 18650 21700 |
| Interface Options | Type C / Type C + Type A |
| Display Options | 7 Segment Display / LED Display |
| Supported Protocols | PPS PD3.0 PD2.0 QC4+ QC4 QC3.0 QC2.0 FCP SCP HSCP SFCP AFC PE1.1 |
| Output Interface | High Current USB |
| Additional Features | Auto Load Detection Small Current Mode LED Power Indicator |
Connections
After the module is wired, use a multimeter to measure the voltage at the B+ and B-contacts when the module is charging and discharging to see if the voltage is the same or the difference is very small, if the difference is large, then there is a problem with the wiring or the battery is aging.
Module Input Interface
Buttons: When short press action, open the USB port as well as the lightly loaded Type-C output port for external discharge and power display. When double-click action, close the USB port and Type-C output port and power display; if there is external power supply is present, only the output port will be closed
Type-C port: supports input and output
USB port: high current output interface
B+: battery positive interface, use must be welded, the wire must be thick, not too long
B-: Battery negative connector, use must solder, the wire must be thick and not too long
Applications
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DIY Power Bank Projects
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Portable Battery Packs
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Industrial Charging Solutions
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Lithium Battery Backup Systems
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Custom Electronics Builds
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Embedded Power Systems
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Fast Charging Development Projects
Precautions
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Designed for 3.7V lithium batteries only
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Parallel battery connection is supported, not series
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Ensure correct polarity before connection
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Use proper heat management during high-load operation
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Avoid short circuits during installation
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Professional handling is recommended for high-current wiring