How to Use 4S Lipo Battery: Examples, Pinouts, and Specs

The CHNL Black Series 4S 130C LiPo Battery is a high-performance lithium polymer battery designed for demanding applications. With four cells connected in series, it provides a nominal voltage of 14.8V and a high discharge rate of 130C, making it ideal for use in RC vehicles, drones, and other high-power systems. Its lightweight design and high energy density ensure optimal performance in applications requiring both power and efficiency.

• Remote-controlled (RC) cars, boats, and airplanes
• Drones and quadcopters
• Robotics and automation systems
• High-performance electric tools
• DIY electronics projects requiring high current output

Below are the key technical details of the CHNL Black Series 4S 130C LiPo Battery:

The CHNL Black Series 4S 130C LiPo Battery includes two connectors:

1. Main Power Connector: Supplies high current to the load.
2. Balance Connector: Used for charging and monitoring individual cell voltages.

1. Connect the Main Power Connector: Attach the XT60/XT90 connector to the power input of your device or electronic speed controller (ESC).
2. Use a Compatible Charger: Always use a LiPo-compatible balance charger to charge the battery. Connect the balance connector (JST-XH) to the charger to ensure all cells are charged evenly.
3. Monitor Voltage Levels: Use a LiPo voltage alarm or monitor to ensure the battery does not drop below 12.0V (3.0V per cell) during use.
4. Secure the Battery: Use Velcro straps or a battery holder to secure the battery in place during operation, especially in RC vehicles or drones.

• Charging: Always charge the battery at a current rate of 1C (e.g., 5A for a 5000mAh battery) unless the manufacturer specifies otherwise.
• Storage: Store the battery at a voltage of 3.8V per cell (15.2V for a 4S battery) when not in use for extended periods.
• Temperature: Avoid exposing the battery to temperatures above 60°C or below 0°C.
• Inspection: Regularly inspect the battery for physical damage, puffing, or swelling. Do not use a damaged battery.
• Discharge Limits: Do not discharge the battery below 12.0V to prevent damage to the cells.

While the 4S LiPo battery is not directly compatible with the Arduino UNO due to its high voltage, you can use a DC-DC step-down converter to safely power the Arduino. Below is an example circuit and code:

1. Connect the 4S LiPo battery to the input of a DC-DC step-down converter.
2. Set the output voltage of the converter to 5V.
3. Connect the output of the converter to the Arduino UNO's 5V and GND pins.

// Example code to read a sensor and print data to the Serial Monitor
// Ensure the Arduino is powered via a step-down converter from the 4S LiPo battery

const int sensorPin = A0; // Analog pin connected to the sensor
int sensorValue = 0;      // Variable to store the sensor reading

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

void loop() {
  sensorValue = analogRead(sensorPin); // Read the sensor value
  Serial.print("Sensor Value: ");
  Serial.println(sensorValue); // Print the sensor value to the Serial Monitor
  delay(1000); // Wait for 1 second before the next reading
}

1. Battery Not Charging

   • Cause: Incorrect charger settings or damaged balance connector.
   • Solution: Verify the charger is set to "4S LiPo" mode and check the balance connector for damage.

2. Battery Swelling or Puffing

   • Cause: Overcharging, over-discharging, or physical damage.
   • Solution: Stop using the battery immediately and dispose of it safely.

3. Device Shuts Down Prematurely

   • Cause: Voltage drops below the device's cutoff threshold.
   • Solution: Use a voltage monitor to ensure the battery remains above 12.0V during use.

4. Uneven Cell Voltages

   • Cause: Imbalanced charging or aging cells.
   • Solution: Use a balance charger to equalize the cell voltages.

Q: Can I use the 4S LiPo battery to power a 12V device?
A: Yes, but you will need a DC-DC step-down converter to regulate the voltage to 12V.

Q: How do I safely dispose of a damaged LiPo battery?
A: Discharge the battery completely, submerge it in saltwater for 24 hours, and take it to a local recycling center.

Q: What is the maximum safe discharge current for this battery?
A: Multiply the capacity (in Ah) by the discharge rate (C-rating). For example, a 5000mAh (5Ah) battery with a 130C rating can safely discharge up to 650A.

Q: Can I charge the battery without using the balance connector?
A: No, always use the balance connector to ensure all cells are charged evenly and safely.