Product Overview

The 1S 1850 3.7V Li-ion Battery Protection Board is a compact battery management module designed to safely charge and protect single-cell 3.7V Li-ion batteries. It provides essential protection features to improve battery safety, reliability, and lifespan, making it ideal for DIY battery packs, power banks, and portable electronic projects.

Key Features

• Supports single-cell 3.7V Li-ion batteries such as 18650 and 14500.

• Provides overcharge, over-discharge, over-current, and short-circuit protection.

• Uses high-precision voltage detection for safe battery monitoring.

• Controls charging and discharging through MOSFET protection circuits.

• Compact PCB design for easy integration into projects.

• Improves battery safety and operating life.

Technical Specifications

• Product Type: Li-ion Battery BMS Protection Board

• Battery Configuration: 1S (Single Cell)

• Battery Voltage: 3.7V DC

• Compatible Batteries: 18650, 14500, and similar Li-ion cells

• Working Current: 1A

• Overcharge Protection Voltage: 4.23 ± 0.05V

• Protection Functions: Overcharge, over-discharge, over-current, short-circuit protection

• Control Method: MOSFET-based charging and discharging control

• Terminals: B+, B-, P+, P-

• PCB Type: Compact battery protection circuit board

• Package Contents: 1 × 1S Li-ion Battery BMS Protection Board

Applications

• DIY 18650 battery pack projects.

• Portable power bank circuits.

• Battery-powered electronics and IoT devices.

• Arduino, ESP32, and embedded projects.

• Robotics and automation applications.

• Rechargeable electronic gadgets.

• Battery safety and management solutions.