How to Use Lifepo4 Baterai 12.8V 24 AH: Examples, Pinouts, and Specs

The LiFePO4 Battery 12.8V 24Ah is a lithium iron phosphate battery designed for high-performance energy storage applications. With a nominal voltage of 12.8V and a capacity of 24Ah, this battery offers excellent thermal stability, long cycle life, and enhanced safety compared to traditional lithium-ion batteries. It is manufactured by ESP32 under the part ID WROOM 32D.

• Renewable energy systems (e.g., solar and wind power storage)
• Uninterruptible Power Supplies (UPS)
• Electric vehicles and e-bikes
• Portable power stations
• Marine and RV applications
• Robotics and IoT devices

The LiFePO4 battery typically has two terminals for connection:

Note: Some LiFePO4 batteries may include additional terminals for features like battery management system (BMS) communication or temperature monitoring. Refer to the specific datasheet for such configurations.

1. Charging the Battery:

   • Use a LiFePO4-compatible charger with a maximum charge voltage of 14.6V.
   • Ensure the charger has a current limit suitable for the battery (e.g., 10A for safe charging).
   • Avoid overcharging or using chargers designed for other lithium chemistries.

2. Connecting to a Load:

   • Connect the positive terminal of the battery to the positive input of the load.
   • Connect the negative terminal of the battery to the negative input of the load.
   • Use appropriately rated wires and connectors to handle the current.

3. Battery Management System (BMS):

   • Ensure the battery includes a built-in BMS for overcharge, over-discharge, and short-circuit protection.
   • If the battery does not have a BMS, consider adding an external one for safety.

4. Integration with Arduino UNO:

   • The battery can power an Arduino UNO via its VIN pin (7-12V input range).
   • Use a voltage regulator or step-down converter if the battery voltage exceeds 12V.

// This code reads the battery voltage using an analog pin on the Arduino UNO.
// Ensure a voltage divider is used to step down the 12.8V to a safe range (0-5V).

const int batteryPin = A0; // Analog pin connected to the voltage divider
const float voltageDividerRatio = 4.0; // Adjust based on your resistor values
const float referenceVoltage = 5.0; // Arduino UNO's ADC reference voltage

void setup() {
  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  int rawValue = analogRead(batteryPin); // Read the analog value
  float batteryVoltage = (rawValue / 1023.0) * referenceVoltage * voltageDividerRatio;

  // Print the battery voltage to the Serial Monitor
  Serial.print("Battery Voltage: ");
  Serial.print(batteryVoltage);
  Serial.println(" V");

  delay(1000); // Wait for 1 second before the next reading
}

• Avoid Deep Discharge: Do not discharge the battery below its cut-off voltage (10.0V) to prevent damage.
• Temperature Monitoring: Operate the battery within the specified temperature range to ensure safety and longevity.
• Storage: Store the battery at 50% charge in a cool, dry place if not in use for extended periods.
• Wiring: Use wires and connectors rated for the battery's maximum current to prevent overheating or fire hazards.

1. Can I use a regular lithium-ion charger for this battery?

   • No, you must use a charger specifically designed for LiFePO4 batteries to avoid overcharging or damaging the battery.

2. How long will this battery last?

   • The battery can last over 2000 cycles at 80% depth of discharge (DOD), depending on usage and maintenance.

3. Can I connect multiple batteries in series or parallel?

   • Yes, but ensure all batteries are of the same type, capacity, and charge level. Use a BMS designed for series or parallel configurations.

4. What happens if the battery is over-discharged?

   • Over-discharging can damage the battery. A BMS or low-voltage cutoff circuit is recommended to prevent this.

By following these guidelines, you can safely and effectively use the LiFePO4 Battery 12.8V 24Ah in your projects and applications.