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

The Type-C Boost Charging Module is a smart lithium battery charging and boost board designed for 3S or 4S lithium battery packs. It accepts Type-C (USB-C) power input and boosts the voltage to safely charge multi-cell lithium batteries with adjustable current and cell-count configuration. The module integrates charging control, current regulation, and battery protection features, making it ideal for portable power systems, DIY battery packs, and embedded electronics projects.

Technical Specifications:

• Battery support: 3S / 4S lithium battery packs
• Charging current: Up to 4 A (selectable: 1 A / 2 A / 4 A)
• Input voltage: 5 V (USB Type-C)
• Charging method: Boost charging
• Output voltage:
• 3S: up to 12.6 V
• 4S: up to 16.8 V
• Interface: USB Type-C
• Current & cell selection: On-board solder pads
• Protection: Over-current, over-voltage, short-circuit protection
• PCB material: FR-4
• Mounting: Through-hole pads

Features:

• Supports both 3S and 4S lithium battery configurations
• High charging current up to 4 A
• Modern USB Type-C input
• Boost converter design for stable charging
• Adjustable charging current via solder pads
• Compact and efficient layout
• Suitable for DIY and embedded battery systems
• Reliable protection for safe battery charging

Applications:

• DIY lithium battery packs
• Portable power banks (3S / 4S)
• Robotics and automation power systems
• Solar and backup energy projects
• IoT and embedded electronics
• Battery-powered tools and devices
• R&D and prototyping setups