100W Bidirectional Fast Charging Power Module 20V 5A DC

100W Bidirectional Fast Charging Power Module – 20V/5A with DC Port & Smart Device Recognition

Upgrade your DIY power bank or energy storage project with this compact yet powerful 100W Bidirectional Charging Power Module. Measuring just 4×4 cm, this PCB-based module delivers up to 20V/5A output and supports high-speed bidirectional charge and discharge cycles — making it an ideal solution for custom power stations, portable battery packs, and electronics prototyping.

With built-in smart device recognition, the module automatically detects the connected device's power requirements, ensuring safe and optimized energy delivery every time. Whether you're charging in or discharging out, advanced power delivery protocols keep the process fast and efficient.

Made in Mainland China.

Key Features

• 100W Fast Charging: Supports high-speed bidirectional charging and discharging for efficient power management in any build.
• 20V / 5A Output: Delivers robust, stable power output suited for mobile power banks and energy storage systems.
• Smart Device Recognition: Automatically identifies device requirements for safe, optimized charging — no manual configuration needed.
• Quick Charge Technology: Advanced power delivery protocols significantly cut down charging time.
• Wide Compatibility: Works seamlessly with a broad range of mainstream electronic devices for maximum versatility.
• Compact PCB Design: Tiny 4×4 cm footprint makes it easy to integrate into custom enclosures and DIY builds.
• DC Port Included: Convenient DC port for flexible input/output connectivity.

Specifications

Package Contents

• 1× 100W Bidirectional Fast Charging Power Module

Please Note

Actual PCB color may vary slightly from product images due to monitor brightness and lighting conditions. Please allow a minor tolerance (±1–2 mm) for manual size measurements.

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Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What does "bidirectional" mean for this 100W power module?

A: Bidirectional means the module can both charge a connected battery (input mode) and discharge power out to devices (output mode) using the same circuit. This makes it versatile for DIY power banks, portable energy storage, and custom UPS systems where you need power flow in both directions.

Q: What devices is this 100W fast charging power module compatible with?

A: The module features smart device recognition, making it compatible with a wide range of mainstream electronics — including laptops, smartphones, tablets, and other USB Power Delivery or DC-powered devices. It automatically adjusts output parameters to suit the connected device.

Q: Can this power module be used in a DIY power bank build?

A: Yes! With its compact 4×4 cm PCB footprint, 20V/5A output, and bidirectional capability, this module is specifically well-suited for custom power bank and portable energy storage projects. It integrates easily into most enclosure designs.

Q: What is the maximum power output of this charging module?

A: This module delivers a maximum of 100W at 20V/5A. This makes it suitable for powering and charging higher-demand devices such as laptops and larger battery packs efficiently.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.