3S 10A BMS - 3.7V Li-ion 18650 Battery Charger - Battery Manager

The 18650 12V 10A Lithium Battery Protection Board is a reliable Battery Management System (BMS) designed for 3-cell (3S) lithium-ion battery packs. Compatible with 11.1V nominal and 12.6V fully charged battery configurations, this protection board ensures safe and efficient battery operation through advanced protection mechanisms.

Engineered for high reliability and low power consumption, the board protects lithium battery packs from overcharging, over-discharging, overcurrent conditions, and short circuits. Its compact size makes it ideal for applications where space, integration, and cost efficiency are critical.

The board features automatic recovery functionality, restoring normal operation once fault conditions are removed. With an ultra-low quiescent current of less than 30μA and an operational lifespan exceeding 30,000 hours, it provides long-lasting performance while minimizing battery drain during standby.

Key Features

• Designed for 3S lithium-ion battery packs (11.1V / 12V / 12.6V)
• Overcharge protection
• Over-discharge protection
• Overcurrent protection
• Short-circuit protection
• Automatic recovery after fault removal
• Compact and lightweight PCB design
• Low standby current consumption (<30μA)
• Internal resistance below 100mΩ
• Service life exceeding 30,000 hours
• Suitable for high-integration and cost-sensitive applications

Applications

• DIY lithium battery packs
• Robotics projects
• IoT and embedded systems
• Portable power solutions
• Solar energy storage systems
• Emergency backup power supplies
• LED lighting systems
• Electric toys and hobby electronics

Technical Specifications

Important Notes

• For loads drawing more than 3A, ensure that the battery pack supports a discharge rate greater than 3C.
• Monitor battery temperature during operation. Excessive heating indicates unsuitable battery conditions or excessive load.
• Continuous operation under high-temperature conditions may reduce battery life and cause permanent battery damage.
• Always use high-quality and well-matched lithium-ion cells when assembling battery packs.

Benefits

This 3S 12V 10A Lithium Protection Board enhances battery safety, improves system reliability, and extends battery lifespan through intelligent protection and monitoring. Its low power consumption, compact form factor, and dependable performance make it an excellent choice for makers, hobbyists, and professional electronics developers.