Key Features

✔ Dual USB Outputs – 1A (Standard) + 2.1A (Fast Charge) for simultaneous device charging. ✔ LCD Display – Shows battery voltage, output current, and remaining power (%). ✔ Wide Input Voltage (3V–4.2V) – Supports 1S Li-ion/Polymer batteries (18650, 26650, etc.). ✔ Smart Protection – Prevents overcharge, over-discharge, and short circuits. ✔ Boost Converter – Efficiently steps up 3.7V to 5V with ≥85% efficiency. ✔ Compact & DIY-Friendly – Fits in most power bank enclosures.

Technical Specifications

• Input Voltage: 3V–4.2V (1S Li-ion/Polymer)

• USB Outputs:

  • USB1: 5V/1A (max)

  • USB2: 5V/2.1A (max)

• Output Efficiency: ≥85%

• LCD Display Metrics:

  • Battery voltage (V)

  • Output current (A)

  • Remaining capacity (%)

• Protections: Overcharge, over-discharge, overload, short-circuit

• Dimensions: 65mm × 35mm × 12mm

• Weight: ~25g

Applications

• DIY Power Banks – Build custom portable chargers.

• Emergency Chargers – Backup power for phones/tablets.

• Solar-Powered Packs – Store solar energy for USB devices.

• Outdoor Gadgets – Charge cameras, GPS, or lights on the go.

• Educational Projects – Learn about battery management systems (BMS).

How It Works

1. Connect Battery – Wire a 3.7V Li-ion cell (e.g., 18650) to the input terminals.

2. Plug in Devices – Use USB ports to charge phones, tablets, etc.

3. Monitor LCD – Check real-time voltage, current, and battery %.

4. Auto-Shutdown – Module cuts off when battery is low (<3V) or fully charged.

Package Includes

• 1 × LCD Dual USB Power Bank Module

• (Optional) Battery connectors/wires

Why Choose This Module?

✅ All-in-One Solution – No extra circuitry needed for a functional power bank. ✅ Fast + Standard Charging – Optimized for both smartphones and low-power devices. ✅ Transparent Monitoring – LCD eliminates guesswork about battery status. ✅ Safety First – Built-in protections extend battery life.

Get Yours Today!

Build your own high-efficiency power bank with the LCD Dual USB Module—perfect for emergency power, travel, or gifts!

🔹 Order now and take control of your portable charging needs! 🔹