Power Bank Charger Module with LCD & Dual USB Interface

Overview

 is a versatile, high-efficiency charging and discharging module designed for DIY power banks and portable energy applications. Equipped with a smart LCD display, it provides real-time voltage, current, and battery level information. The module features dual USB output ports (5V 1A & 2.1A), enabling simultaneous charging of two devices while maintaining stable output performance. Built-in automatic protection safeguards against overcharge, over-discharge, short circuit, and reverse polarity, ensuring both user and device safety.

Key Features

• Input Voltage: 5V DC via Micro USB or solder terminals.

• Output Ports: Dual USB output — 5V 1A and 5V 2.1A for fast and standard charging.

• LCD Display: Real-time display of voltage, current, and battery percentage.

• Charging Compatibility: Suitable for smartphones, tablets, and portable devices.

• Battery Type: Compatible with single or multiple 3.7V lithium-ion batteries (18650 type recommended).

• Automatic Protection: Built-in protection for over-voltage, over-current, short circuit, and reverse connection.

• High Conversion Efficiency: Over 90% energy conversion for maximum performance.

Applications

is suitable for:Power Bank Charger Module with LCD & Dual USB Interface

• DIY power bank projects and portable chargers.

• Battery-powered embedded systems.

• Emergency charging systems and solar-based power banks.

• Electronic development and educational projects.

Advantages:

• Dual USB outputs allow simultaneous charging of two devices.

• Smart LCD screen provides clear and accurate system status.

• Compact and lightweight design for easy integration into custom enclosures.

• High-efficiency circuit minimizes energy loss and heat generation.

• Built-in safety protection ensures long battery and module lifespan.

Technical Specifications (Data Sheet)

Usage Notes

• Connect the 3.7V lithium battery pack to the module’s battery terminals.

• Ensure correct polarity before powering the device.

• Use a standard 5V input for charging the module.

• Avoid exposure to moisture or high-temperature environments.

• Ideal for DIY enthusiasts, students, and engineers building portable charging solutions.

Conclusion

The Power Bank Charger Module with LCD & Dual USB Interface 5V 1A 2.1A With Automatic Protection offers an efficient, safe, and intelligent charging solution for modern portable electronics. With its dual USB outputs, smart LCD display, and built-in safety features, it delivers both performance and convenience. Whether used in custom power banks, DIY electronics, or mobile charging systems, this module ensures reliable operation, excellent energy efficiency, and complete protection for your devices.