2S 18650 Li-ion Protection Board – 3A 7.4V/8.4V Battery Charger Safety Module

Ensure safe and efficient operation of your battery packs with the 2S 18650 Li-ion Protection Board. Designed for 7.4V/8.4V battery systems, this module provides robust protection against overcharging, over-discharging, and excessive current flow. It’s the perfect choice for DIY projects and industrial-grade applications using 18650 Li-ion batteries.

The compact and lightweight design allows easy integration, while onboard protection circuits keep your batteries safe during charge and discharge cycles. Whether you’re building power banks, electric bicycles, or portable devices, this module enhances battery reliability and lifespan.

🔧 Key Features

• High-performance 2S 18650 Li-ion Protection Board with 3A rated current
• Protects against overcharge, over-discharge, and short circuits
• Supports 2-series battery configurations (2S – 7.4V/8.4V)
• Compact, space-saving design for flexible usage
• Input voltage of 3.7V per cell; transient current up to 5A
• Suitable for DIY electronics, power banks, e-bikes, and more

📐 Technical Specifications

📌 Applications

• Battery-powered devices and tools
• DIY 18650 battery packs and chargers
• Electric bicycles and scooters
• Portable energy storage systems
• Power banks and backup energy units

💡 Why Choose This Battery Protection Board?

The 2S 18650 Li-ion Protection Board offers peace of mind with built-in protections for your battery packs. Its balance of safety, performance, and compact design makes it an ideal solution for anyone working with 2-cell Li-ion systems. It extends battery lifespan, enhances power delivery, and prevents hazardous failures.

📦 Package Includes

• 1 × 2S 18650 Li-ion Protection Board – 3A