4S 16.8V 2A 18650 Lithium Battery Charger Module Type C

The 4S 16.8V 2A 18650 Lithium Battery Charger Module (Type-C) is a compact and efficient charging solution designed for 4-cell (4S) lithium-ion battery packs arranged in series. Equipped with a USB Type-C input port, it offers universal compatibility with modern charging cables and power adapters, making it highly convenient for DIY battery packs and portable power projects.

This module provides automatic charging and cell balancing, ensuring each cell is charged uniformly to extend battery life and maintain safe operation. Built-in overcharge protection safeguards the battery pack against unsafe voltage levels, preventing damage and improving reliability.

The board also includes LED indicators for charging status—red LED for charging and green LED when charging is complete—making it user-friendly and practical. With its compact 25 × 18 × 6 mm design and lightweight build, it integrates seamlessly into custom battery systems while offering stable 16.8V output at up to 2A.

Ideal for DIY power banks, robotics, portable electronics, and energy storage solutions, this charger module delivers dependable performance in a small form factor.

Applications

• Charging 4S (16.8V) 18650 lithium-ion battery packs

• DIY power banks and portable battery packs

• Robotics and embedded systems

• Solar-powered energy storage units

• Compact electronics requiring reliable 4S charging

Features

• USB Type-C input for universal compatibility

• Supports charging of 4S (16.8V) lithium-ion packs

• Provides up to 2A charging current

• Automatic charging with cell balancing function

• Built-in overcharge protection

• LED indicators: red (charging), green (full)

• Lightweight and compact PCB module design

Specifications