1S 3.7V 3A 2MOS BMS Li-ion 18650 Battery Protection Board

The 1S 3.7V 3A 2MOS BMS Li-ion 18650 Battery Protection Board is a compact and efficient battery management system designed to safeguard single-cell 3.7V lithium-ion batteries. Ideal for DIY power packs, this module features advanced protection circuits to ensure safe operation under a variety of charging and discharging conditions.

This BMS module includes overcharge, over-discharge, and short circuit protection to maximize the lifespan and performance of your batteries. It also has a built-in dual-MOS configuration to handle up to 3A of continuous current. Whether you’re building battery banks, portable electronics, or energy storage modules, this protection board ensures long-term, stable operation with an estimated lifetime of over 30,000 hours.

🔧 Key Features

• Compact 1S BMS module for single-cell 3.7V Li-ion batteries
• 2MOS circuit design for improved efficiency
• Built-in protections: overcharge, over-discharge, short circuit
• Supports continuous current up to 3A
• Automatic shutoff at full charge or critical discharge
• Designed for more than 30,000 hours of operation

📐 Technical Specifications

📌 Applications

• 18650 battery pack protection
• DIY power banks and USB chargers
• Solar-powered devices and energy storage
• Portable electronics and embedded systems

💡 Why Choose This BMS Board?

The 1S 3.7V 3A 2MOS BMS Module provides essential protection to prolong the life of your lithium batteries. It’s reliable, affordable, and essential for ensuring safety in battery-powered electronics, especially when charging or discharging high-capacity 18650 cells.

📦 Package Includes

• 1 × 1S 3.7V 3A 2MOS BMS Li-ion Battery Protection Board