2S 8.4V 2A Type-C Li-ion Battery Charger Module

Advanced 2S 8.4V 2A Type-C Li-ion Charger Module for DIY Electronics

Welcome to Bigyan Project, your trusted source for high-quality electronic components. We are proud to present our 2S 8.4V 2A Type-C Li-ion Battery Charger Module, an essential piece of equipment for any electronics enthusiast, DIY maker, or professional builder. This versatile module is engineered to efficiently and safely charge 2-cell (2S) lithium-ion battery packs, commonly used in a wide array of portable electronic devices and custom projects. With its modern Type-C USB input and robust charging circuitry, it offers convenience, reliability, and superior performance. Whether you are building a new power bank, a custom RC vehicle, or powering a unique gadget, this charger module ensures your batteries are always ready for action. The Bigyan Project team has meticulously selected and tested this module to meet the demanding needs of our customers in Bangladesh and beyond.

Product Specifications

Features

• High-efficiency charging for 2S Li-ion battery packs.
• Convenient Type-C USB input for modern connectivity.
• Integrated protection circuits for enhanced safety and battery longevity.
• Compact and lightweight design, ideal for portable projects.
• Clear LED indicators for charging status.
• Wide input voltage range to accommodate various power sources.
• Stable 8.4V output for optimal battery performance.
• Designed and tested by Bigyan Project for reliability.

Applications / Use Cases

This 2S 8.4V 2A Type-C Li-ion Charger Module from Bigyan Project is perfect for a wide range of applications:

• DIY Power Banks and Portable Chargers
• Remote Control (RC) Vehicles and Drones
• Robotics Projects
• Custom LED Lighting Systems
• Portable Electronic Devices
• Battery Management Systems
• Hobbyist Electronics Projects
• Educational Kits and Demonstrations
• Small Solar Charging Systems

User Guide / How to Use

Using the 2S 8.4V 2A Type-C Li-ion Battery Charger Module is straightforward:

1. Connect the Battery: Ensure your 2S lithium-ion battery pack (two 3.7V cells in series) is properly connected to the designated battery terminals on the module. Crucially, verify correct polarity (+ and -) before connecting. Incorrect connection can damage the module and batteries.
2. Connect Power Input: Plug a Type-C USB cable into the Type-C port on the module and connect the other end to a suitable USB power source (e.g., a USB wall adapter, power bank, or computer USB port) that can provide at least 2A.
3. Monitor Charging: The "CR" LED will illuminate to indicate that the batteries are currently charging.
4. Charging Complete: Once the batteries are fully charged, the "OK" LED will light up, and the module will enter Constant Voltage (CV) mode, maintaining the charge without overcharging.
5. Disconnect: Once charging is complete, disconnect the USB power source and the battery pack.

Important Note: Always use batteries with built-in protection circuits for an extra layer of safety, especially in DIY projects.

Frequently Asked Questions (FAQs)

• Q: What is the maximum capacity of Li-ion batteries this module can charge?
  A: This module is designed to provide the correct charging voltage and current for 2S Li-ion battery packs. The capacity (mAh) is primarily limited by the batteries themselves and the available input power. As long as the total voltage is 7.4V nominal (8.4V fully charged) and the input power is sufficient (at least 2A recommended), it can charge batteries of various capacities.
• Q: Can I use this module to charge single Li-ion cells?
  A: No, this module is specifically designed for 2S (two cells in series) battery configurations. Using it for single cells will result in incorrect charging voltage and can damage the batteries.
• Q: What kind of USB power source should I use?
  A: A USB power source that can supply at least 2A is recommended for optimal charging speed. Using a lower amperage source will result in slower charging. Ensure your power source is stable and reliable.
• Q: What does the LED indicator mean?
  A: The "CR" LED indicates that charging is in progress. The "OK" LED illuminates when the batteries are fully charged or when the module is in constant voltage (CV) mode, maintaining the charge.
• Q: Does this module have battery protection?
  A: Yes, this module includes several built-in protection features: Battery Overvoltage Protection, Battery Low Voltage Protection, Short Battery Protection, and Input Undervoltage Protection.
• Q: Can I leave the batteries connected to the charger after they are fully charged?
  A: Yes, the module supports trickle charging and will maintain the batteries at their full charge voltage (CV mode) without overcharging them. However, for long-term storage, it's generally recommended to disconnect the batteries or store them at a moderate charge level.

Challenges and Considerations

• Battery polarity must be strictly observed during connection. Reverse polarity will damage the module.
• Ensure your USB power source can supply sufficient current (at least 2A) for efficient charging.
• The module does not include batteries; they must be purchased separately.
• For safety, it is highly recommended to use Li-ion batteries that already have their own built-in protection circuits.
• The module's physical size might be a constraint in extremely compact project designs.

Compatibility

This 2S 8.4V 2A Type-C Li-ion Charger Module is compatible with:

• All standard 3.7V lithium-ion cells when configured in a 2S (two cells in series) arrangement, such as:
• 18650 Li-ion batteries
• 14500 Li-ion batteries
• 26650 Li-ion batteries (ensure total voltage is 8.4V)
• Other cylindrical or prismatic Li-ion cells with a nominal voltage of 3.7V (7.4V pack voltage)
• USB power sources with Type-C connector, capable of delivering 5V and at least 2A.

Future Enhancement Options

While this module offers excellent functionality, potential enhancements for future versions or related projects could include:

• Support for higher input current (e.g., 3A or 4A Type-C PD) for faster charging.
• Integrated battery balancing for longer cell lifespan and improved performance in 2S packs.
• Additional communication interfaces (e.g., I2C) for advanced monitoring and control.
• A larger form factor with screw terminals for easier permanent connections.
• Built-in over-discharge protection for the battery pack itself.

Benefits

Choosing the Bigyan Project 2S 8.4V 2A Type-C Li-ion Battery Charger Module provides several advantages:

• Safety: Multiple protection circuits safeguard your batteries and device.
• Convenience: Universal Type-C input makes charging easy and accessible.
• Efficiency: Optimizes the charging process for 2S Li-ion batteries.
• Versatility: Suitable for a vast array of DIY and electronic projects.
• Reliability: Built with quality components for consistent performance.
• Cost-Effective: Provides excellent value for its features and functionality.
• Compact: Small size fits easily into most project enclosures.

Conclusion

The 2S 8.4V 2A Type-C Li-ion Battery Charger Module from Bigyan Project is an indispensable component for anyone involved in electronics, robotics, or DIY power solutions. Its combination of safety features, modern connectivity, and efficient charging makes it a top choice for powering your projects. Trust Bigyan Project for reliable, high-performance electronic components that help bring your innovations to life. Get yours today and experience the difference!