8.4V 2S 7.4V Lithium Ion 18650 Battery Protection Module Overvoltage and Overcurrent Protection

Description

What it is

The battery protection module is an essential component for the safety of projects that use Li-ion batteries, such as those powered by two 18650 batteries. This module protects the batteries from overcharging and undercurrent.

Features

• Operating voltage: 8.4V / 7.4V (2S)
• Compatible battery: 18650 Li-ion
• Overcharge and undercurrent protection
• Maximum operating current: check datasheet

What it is for

Battery protection modules are ideal for beginner and intermediate makers working with portable devices or robots. You can use it to create a small LED flashlight powered by two 18650 batteries with protection, or connect it to an Arduino or ESP32 circuit to test it.

Tutorial: How to use 2S Battery Protection Module

The 2S battery protection module is essential to ensure the safety of your projects that use Li-ion batteries. It is ideal for beginner and intermediate makers working with portable devices or robots.

What you need

• Battery Protection Module 2S
• 18650 Battery x2
• Arduino Uno
• JST-XH Battery Head Connection
• Power Supply

Steps

1. Connect the two 18650 batteries in series using the JST-XH battery head connection.
2. Connect the positive and negative output terminals of the battery protection module to the positive and negative poles of the battery respectively.
3. Connect the positive and negative poles of the battery protection module to a power supply or Arduino Uno to test its functions.
4. Check that the battery protection module does not show signs of overcharge or excessive discharge during use.
5. If necessary, use a multimeter to monitor the system voltage and current.

Mini project

Create a small LED flashlight powered by two 18650 batteries with protection. Connect the battery protection module to the circuit and test it.

Common mistakes

• Do not connect the batteries correctly.
• Ignore the voltage and current limits of the module.
• Use a non-insulated multimeter for measurement.
• Omit periodic temperature checks of the batteries.

Recommended accessories

• 18650 Battery
• JST-XH Battery Head Connection
• Digital Multimeter
• Battery Protection Kit

Frequently asked questions

What is the maximum current of the module?
Check the datasheet for the maximum current specification.

How can I test my battery protection module?
Connect it to the system and monitor the voltage and current levels with a multimeter.