18650 Lithium Battery Power Bank Module

18650 Lithium Battery Power Bank Module is a compact, high-efficiency charging and boosting circuit designed to convert a single 18650 lithium-ion battery into a reliable 5V USB power bank. Ideal for DIY enthusiasts, electronics hobbyists, students, and product developers, this module enables you to build a custom portable charger for smartphones, IoT devices, microcontrollers, and other USB-powered electronics.

Whether you are creating a backup power solution, a portable project enclosure, or a rechargeable battery pack for embedded systems, this power bank module offers stable output, intelligent charging control, and built-in safety protection features.

Key Features of 18650 Lithium Battery Power Bank Module

🔋 Single 18650 Battery Support

Designed to work with one 3.7V 18650 lithium-ion battery (not included). The module efficiently boosts battery voltage to a stable 5V USB output.

⚡ 5V USB Output with Boost Converter

Integrated DC-DC boost converter ensures regulated 5V output suitable for charging mobile phones, development boards, Bluetooth devices, and other USB-powered equipment.

🔌 Micro USB / Type-C Charging Input

Supports convenient battery charging via Micro USB or Type-C input (model dependent), making it easy to recharge using standard phone chargers.

🛡 Built-in Protection Circuit

Integrated protection IC ensures:

• Overcharge protection

• Over-discharge protection

• Overcurrent protection

• Short circuit protection

This safeguards both the battery and connected devices.

📊 LED Power Indicators

Onboard LED indicators display battery charge level, allowing users to monitor charging status easily.

🔄 Intelligent Charging Management

Automatically switches between charging and discharging modes for seamless operation.

🧰 Compact and Lightweight Design

Small PCB footprint makes it suitable for portable enclosures, DIY battery packs, robotics, IoT prototypes, and embedded systems.

Technical Specifications

• Battery Type Supported: 18650 Lithium-ion (3.7V nominal)

• Input Voltage: 5V DC (Micro USB / Type-C)

• Output Voltage: 5V ±0.2V

• Output Current: Up to 1A / 2A (depending on module version)

• Charging Current: Typically 1A

• Conversion Efficiency: Up to 85–95%

• Protection Features: Overcharge, over-discharge, overcurrent, short circuit

• Indicators: 4 LED battery level indicators

• PCB Size: Compact design for enclosure integration

• Operating Temperature: -10°C to +60°C

Applications of 18650 Power Bank Module

📱 DIY Mobile Power Bank

Create a custom portable charger for smartphones, tablets, and Bluetooth devices.

🤖 Robotics & Embedded Projects

Provide rechargeable power for Arduino, ESP32, Raspberry Pi Pico, NodeMCU, and other development boards.

🌐 IoT Devices

Power remote IoT sensors, wireless modules, GPS trackers, and portable monitoring systems.

🔦 Portable LED Lighting Systems

Build rechargeable emergency lights, camping lights, and torch systems.

🧪 Educational Projects

Perfect for engineering and electronics students learning about lithium battery management systems (BMS), DC-DC boost converters, and charging circuits.

🏕 Emergency Backup Power

Useful for small-scale emergency power backup applications.

Why Choose This 18650 Battery Power Bank Module?

• High efficiency boost conversion

• Reliable lithium battery charging management

• Compact and easy-to-integrate design

• Cost-effective DIY solution

• Ideal for makers, students, and professionals

This module eliminates the need for complex battery charging circuitry and voltage regulation components, simplifying your design and reducing development time.

The 18650 Lithium Battery Power Bank Module is an essential component for anyone looking to build a reliable, portable USB charging solution. With intelligent charging management, stable 5V output, and comprehensive protection features, it offers an efficient and safe way to convert a single lithium-ion battery into a powerful mobile energy source.

Upgrade your DIY electronics projects with this versatile and dependable power bank module today!

Package Includes:

1 x 18650 Lithium Battery Power Bank Module

FAQ

1. Where can we buy this 18650 Lithium Battery Power Bank Module?

This product is available online https://aiiottech.in/product/18650-lithium-battery-power-bank-module/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this 18650 Lithium Battery Power Bank Module after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: DIY Lithium Battery Charger Ideas