3.7V 1S BMS – Single Cell Li-Ion Battery Protection Board

The 3.7V 1S BMS is a compact Battery Management System designed to protect a single-cell 3.7V Li-Ion or Li-Po battery during charging and discharging. It helps improve battery safety and reliability by providing essential protection against overcharging, over-discharging, excessive current, and short circuits.

This 1S BMS protection board is suitable for DIY electronics, portable devices, rechargeable battery packs, LED projects, IoT devices, small power systems, and other applications using a single 3.7V lithium battery.

Key Features

• Designed for 1S 3.7V lithium batteries
• Overcharge protection
• Over-discharge protection
• Overcurrent protection
• Short-circuit protection
• Compact and lightweight PCB design
• Suitable for DIY and rechargeable battery projects
• Helps protect the battery from unsafe operating conditions

Applications

The 3.7V 1S BMS can be used in:

• DIY battery packs
• Portable electronics
• LED lighting projects
• IoT devices
• Small robotics projects
• Rechargeable electronic devices
• Arduino and microcontroller projects
• Single-cell Li-Ion battery applications

How It Works

The 1S BMS monitors the battery’s voltage and current during operation. When an unsafe condition such as overcharge, excessive discharge, overcurrent, or short circuit is detected, the protection circuit disconnects the battery to help prevent damage.

Important Note

This is a 1S battery protection board, intended for a single lithium cell. Verify the BMS specifications, battery type, charging voltage, and current requirements before installation. Correct wiring and suitable charging equipment are essential for safe operation.

Why Choose a 3.7V 1S BMS?

Adding a suitable BMS or protection board to a single-cell lithium battery project can provide an additional layer of protection and help maintain reliable battery operation. Its small size makes it convenient for compact DIY electronics and portable battery applications.