How to Use LI-ION BATERRY: Examples, Pinouts, and Specs

The Samsung AA-PBUN34B is a rechargeable lithium-ion (Li-ion) battery designed for high-performance energy storage applications. Li-ion batteries are widely recognized for their high energy density, low self-discharge rate, and long cycle life, making them ideal for portable electronics, electric vehicles, and renewable energy systems. The Samsung AA-PBUN34B is a reliable power source for devices requiring consistent and efficient energy delivery.

• Laptops and portable computers
• Smartphones and tablets
• Power banks and backup power systems
• Electric vehicles (EVs) and e-bikes
• Renewable energy storage (e.g., solar systems)
• Robotics and IoT devices

The following table outlines the key technical details of the Samsung AA-PBUN34B Li-ion battery:

The Samsung AA-PBUN34B battery typically includes a connector with multiple pins for power delivery and communication. Below is a general description of the pin configuration:

Note: Pin configuration may vary depending on the specific device or application. Always refer to the device's datasheet or user manual for accurate pinout details.

1. Connection: Connect the positive (+) and negative (-) terminals of the battery to the corresponding terminals of your device or circuit. Ensure proper polarity to avoid damage.
2. Charging: Use a compatible Li-ion battery charger with a constant current/constant voltage (CC/CV) charging profile. Set the charging voltage to 12.6V and the current to 2.2A (or lower).
3. Communication: If your application requires battery status monitoring, connect the SMBus data (SDA) and clock (SCL) lines to a microcontroller or battery management system (BMS) that supports the I2C protocol.
4. Temperature Monitoring: Use the thermistor (NTC) pin to monitor the battery's temperature and ensure it operates within the safe range.

• Avoid Overcharging/Overdischarging: Use a battery management system (BMS) to prevent overcharging (above 12.6V) and overdischarging (below 9.0V).
• Temperature Safety: Do not charge the battery below 0°C or above 45°C. Avoid discharging it below -20°C or above 60°C.
• Storage: Store the battery in a cool, dry place at 40-60% charge for long-term storage.
• Protection Circuit: Always use a protection circuit to safeguard against short circuits, overcurrent, and thermal runaway.
• Recycling: Dispose of the battery responsibly at an authorized recycling facility.

If you want to monitor the battery's voltage and temperature using an Arduino UNO, you can use the following example code:

// Example code to monitor battery voltage and temperature using Arduino UNO
// Ensure proper connections: SDA to A4, SCL to A5, and NTC to an analog pin

#include <Wire.h> // Include Wire library for I2C communication

#define BATTERY_NTC_PIN A0 // Analog pin connected to the thermistor (NTC)

void setup() {
  Serial.begin(9600); // Initialize serial communication
  Wire.begin();       // Initialize I2C communication
  Serial.println("Battery Monitoring Initialized");
}

void loop() {
  // Read battery temperature from the thermistor
  int ntcValue = analogRead(BATTERY_NTC_PIN);
  float voltage = ntcValue * (5.0 / 1023.0); // Convert ADC value to voltage
  float temperature = (voltage - 0.5) * 100.0; // Convert voltage to temperature (°C)

  // Display temperature
  Serial.print("Battery Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");

  // Add delay for readability
  delay(1000);
}

Note: This example assumes the thermistor outputs a voltage proportional to temperature. Adjust the calculations based on the thermistor's specifications.

1. Battery Not Charging

   • Cause: Faulty charger, incorrect charging voltage/current, or damaged battery.
   • Solution: Verify the charger specifications and connections. Replace the charger or battery if necessary.

2. Overheating During Use

   • Cause: Excessive current draw or operation outside the recommended temperature range.
   • Solution: Reduce the load on the battery and ensure proper ventilation. Use a BMS for thermal protection.

3. Shortened Battery Life

   • Cause: Frequent deep discharges, overcharging, or exposure to high temperatures.
   • Solution: Avoid deep discharges and overcharging. Store the battery in a cool, dry place.

4. Inaccurate Battery Status Readings

   • Cause: Faulty SMBus communication or incorrect pin connections.
   • Solution: Check the SDA and SCL connections. Ensure the microcontroller supports the I2C protocol.

• Always use a multimeter to verify the battery's voltage and connections.
• If the battery is not recognized by the device, check the pin configuration and ensure proper alignment.
• For communication issues, use an oscilloscope to debug the I2C signals on the SDA and SCL lines.

By following this documentation, users can safely and effectively integrate the Samsung AA-PBUN34B Li-ion battery into their projects and applications.