Power Bank Module (5V USB Boost & Charging Module)

The Power Bank Module is a compact 5V USB boost converter and lithium-ion battery charging module designed for building DIY power banks using a single 3.7V lithium-ion or lithium-polymer battery. It features a Micro USB charging input and a USB Type-A 5V output, making it suitable for portable chargers, Arduino projects, ESP32, Raspberry Pi, IoT devices, and battery-powered electronics.

Features

• Full Name: 5V USB Power Bank Charging & Boost Module
• Supports single-cell 3.7V Li-ion/Li-Po batteries
• Built-in battery charging circuit
• 5V USB boost converter output
• Micro USB charging input
• High conversion efficiency
• Built-in battery protection
• Compact PCB design
• Easy solder connections

Specifications

Pin Configuration

Note: Connect the battery to the B+ and B− terminals with the correct polarity before charging or powering a device.

Applications

• DIY power banks
• Mobile phone chargers
• Arduino and ESP32 projects
• Raspberry Pi power supply
• Portable USB devices
• IoT projects
• Battery-powered electronics
• Emergency backup power
• Educational electronics

Advantages

• Compact and lightweight
• Easy to integrate
• Built-in charging and boost functions
• High conversion efficiency
• Multiple protection features
• Reliable performance
• Cost-effective solution

Size

Package Includes

• 1 × Power Bank Module

Note: This module is designed for single-cell 3.7V Li-ion/Li-Po batteries only. It is not compatible with LiFePO₄ (3.2V) batteries unless specifically supported by the manufacturer. Use a quality rechargeable battery, observe the correct polarity, and avoid exceeding the 1A output current rating for safe and reliable operation.