1S 3.7V 3A Li-ion BMS PCM Battery Protection Board

This 1S 3.7V 3A Li-ion Battery Management System (BMS) or Protection Circuit Module (PCM) is designed to safeguard single-cell lithium-ion or lithium-polymer (LiPo) batteries. It offers vital protections including overcharge, over-discharge, overcurrent, and short circuit, ensuring battery longevity and user safety. Ideal for DIY battery packs, rechargeable devices, and embedded electronics, this BMS board is compact, reliable, and easy to integrate.

Key Features

• Supports 1S (single-cell) 3.7V Li-ion/LiPo batteries
• Provides overcharge, over-discharge, and short-circuit protection
• Continuous discharge current: 3A (max)
• Compact design for tight spaces
• Extends battery life and ensures safe operation
• Easy soldering pads for B+, B-, P+, P- terminals

Specifications

Common Applications

• DIY power banks
• Bluetooth speakers
• LED lighting systems
• Small robotics
• Solar battery packs
• Portable electronics

Package Includes

✅ 1 x 1S 3.7V 3A Li-ion BMS PCM Battery Protection Board