18650 12V 10A Lithium Protection Board Documentation

Input Voltage

12V

Output Voltage

12V

Output Current

10A

Operating Temperature Range

-20C to 80C

Storage Temperature Range

-40C to 125C

Dimensions

35mm x 25mm x 10mm

Weight

10g

Applications

The 18650 12V 10A Lithium Protection Board is suitable for a wide range of applications, including

IoT devices

Electric vehicles

Renewable energy systems

Battery-powered tools and equipment

Medical devices

Industrial control systems

Conclusion

The 18650 12V 10A Lithium Protection Board is a reliable and efficient solution for protecting and managing 18650 lithium-ion batteries. Its comprehensive set of protection features, compact design, and wide operating temperature range make it an ideal choice for various applications that require safe and reliable battery operation.

Pin Configuration

18650 12V 10A Lithium Protection Board Documentation
Overview
The 18650 12V 10A Lithium Protection Board is a compact and versatile board designed to provide overcharge, over-discharge, and short-circuit protection for 18650 lithium-ion batteries. This board is an essential component in IoT devices, particularly those that rely on rechargeable batteries as their power source.
Pin Description
The 18650 12V 10A Lithium Protection Board has 7 pins, which are carefully labeled and explained below:
1. B+ (Battery Positive)
Description: Connects to the positive terminal of the 18650 lithium-ion battery
Function: Provides power from the battery to the protection circuit
Connection: Connect the positive wire from the 18650 battery to this pin
2. B- (Battery Negative)
Description: Connects to the negative terminal of the 18650 lithium-ion battery
Function: Completes the battery connection to the protection circuit
Connection: Connect the negative wire from the 18650 battery to this pin
3. VCC (Output Voltage)
Description: Provides the regulated output voltage from the protection circuit
Function: Supplies power to the load (e.g., IoT device, circuit, or module)
Connection: Connect the positive wire from the load to this pin
4. GND (Ground)
Description: Provides the ground connection for the output voltage
Function: Completes the power supply connection to the load
Connection: Connect the negative wire from the load to this pin
5. CHG (Charging Input)
Description: Connects to the positive terminal of the charging power source (e.g., USB, wall adapter)
Function: Allows the battery to be charged through the protection circuit
Connection: Connect the positive wire from the charging power source to this pin
6. RTS (Remote Temperature Sensing)
Description: Optional pin for connecting a thermistor or temperature sensor
Function: Enables temperature monitoring and protection for the battery
Connection: Connect a thermistor or temperature sensor to this pin (if using)
7. NTC (Negative Temperature Coefficient)
Description: Optional pin for connecting an NTC thermistor
Function: Enables temperature monitoring and protection for the battery
Connection: Connect an NTC thermistor to this pin (if using)
Connection Structure
To connect the pins correctly, follow this structure:
Connect the 18650 lithium-ion battery to the B+ and B- pins.
Connect the load (e.g., IoT device, circuit, or module) to the VCC and GND pins.
Connect the charging power source (e.g., USB, wall adapter) to the CHG pin.
If using temperature monitoring, connect the thermistor or temperature sensor to the RTS pin, and/or the NTC thermistor to the NTC pin.
Important Notes
Ensure that the battery is properly connected to the protection board to prevent damage or malfunction.
Use a suitable charging power source that matches the board's specifications (12V, 10A).
Follow proper safety precautions when working with lithium-ion batteries and electrical circuits.
By following this documentation, you should be able to correctly connect and utilize the 18650 12V 10A Lithium Protection Board in your IoT projects.

Code Examples

18650 12V 10A Lithium Protection Board Documentation

Overview

The 18650 12V 10A Lithium Protection Board is a high-performance lithium-ion battery protection module designed to safeguard 18650 battery cells from overcharge, over-discharge, over-current, and short-circuit conditions. This module is ideal for IoT projects that require reliable and efficient battery management.

Features

Input voltage: 12V
 Output current: 10A
 Overcharge protection voltage: 4.25V  0.05V
 Over-discharge protection voltage: 2.5V  0.05V
 Over-current protection: 10A  1A
 Short-circuit protection
 Low power consumption: <1mA

Pinout

B- (Battery negative)
 B+ (Battery positive)
 P- (Power negative)
 P+ (Power positive)

Code Examples

### Example 1: Arduino Battery Monitoring with 18650 Protection Board

In this example, we'll use the 18650 12V 10A Lithium Protection Board with an Arduino Uno to monitor the battery voltage and current.

```c++
const int voltagePin = A0;  // Voltage sensing pin
const int currentPin = A1;  // Current sensing pin

void setup() {
  Serial.begin(9600);
}

void loop() {
  int voltageReading = analogRead(voltagePin);
  float voltage = voltageReading  12.0 / 1023.0; // Convert to voltage value

int currentReading = analogRead(currentPin);
  float current = currentReading  10.0 / 1023.0; // Convert to current value

Serial.print("Battery Voltage: ");
  Serial.print(voltage);
  Serial.println(" V");

Serial.print("Battery Current: ");
  Serial.print(current);
  Serial.println(" A");

delay(1000);
}
```

### Example 2: Raspberry Pi Battery Management with 18650 Protection Board (Python)

In this example, we'll use the 18650 12V 10A Lithium Protection Board with a Raspberry Pi to monitor the battery voltage and current, and shut down the system when the battery is critically low.

```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

voltage_pin = 17  # Voltage sensing pin
current_pin = 23  # Current sensing pin

GPIO.setup(voltage_pin, GPIO.IN)
GPIO.setup(current_pin, GPIO.IN)

while True:
    voltage_reading = GPIO.input(voltage_pin)
    current_reading = GPIO.input(current_pin)

if voltage_reading < 3.0:  # Critical battery voltage (adjust to your needs)
        print("Battery critically low! Shutting down...")
        # Add shutdown command or script here
        break

time.sleep(1)
```

### Example 3: ESP8266 Battery-Powered IoT Device with 18650 Protection Board (MicroPython)

In this example, we'll use the 18650 12V 10A Lithium Protection Board with an ESP8266 board to create a battery-powered IoT device that monitors its own battery level and sends updates to a remote server.

```python
import machine
import urequests
import utime

voltage_pin = machine.ADC(0)  # Voltage sensing pin

while True:
    voltage_reading = voltage_pin.read_uv() / 1000
    battery_level = (voltage_reading - 2.5) / 1.5  100  # Calculate battery level (adjust to your needs)

if battery_level < 20:  # Critical battery level (adjust to your needs)
        print("Battery critically low! Sending update...")
        urequests.post("https://your-remote-server.com/battery_update", json={"battery_level": battery_level})
        break

utime.sleep(60)  # Update every 1 minute
```

Note: In all examples, ensure that the protection board is properly connected to the 18650 battery and the microcontroller or development board. The code examples provided are simplified and might require adjustments for specific use cases. Always follow proper safety precautions when working with batteries and electrical systems.

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18650 12V 10A Lithium Protection Board