How to Use 4 pack 1s4p battery: Examples, Pinouts, and Specs

The 4 Pack 1S4P Battery is a configuration of four individual cells connected in parallel (4P) with a single series connection (1S). This arrangement increases the overall capacity of the battery while maintaining the same voltage as a single cell. The 1S4P configuration is ideal for applications requiring extended runtime without increasing the voltage level.

• Portable electronic devices (e.g., handheld tools, flashlights)
• Power banks and backup power systems
• Low-power robotics and IoT devices
• Renewable energy storage (e.g., solar-powered systems)
• Electric vehicles with low-voltage requirements

The following table outlines the key technical specifications of the 4 Pack 1S4P Battery:

The 4 Pack 1S4P Battery typically has two terminals for connection:

Some battery packs may include additional pins for features like temperature monitoring or balancing. Refer to the specific datasheet for such configurations.

1. Connection: Connect the positive terminal of the battery pack to the positive rail of your circuit and the negative terminal to the ground rail.
2. Charging: Use a charger designed for the specific chemistry of the cells (e.g., Li-ion, NiMH). Ensure the charger supports the combined capacity and voltage of the 1S4P configuration.
3. Load Compatibility: Ensure the load does not exceed the maximum discharge current of the battery pack.
4. Protection Circuit: Use a Battery Management System (BMS) to prevent overcharging, over-discharging, and short circuits.

• Cell Matching: Ensure all cells in the pack have the same capacity, internal resistance, and state of charge to avoid imbalances.
• Thermal Management: Monitor the temperature of the battery pack during operation and charging to prevent overheating.
• Storage: Store the battery pack in a cool, dry place at a partial charge (e.g., 40-60%) to prolong its lifespan.
• Safety: Avoid puncturing, short-circuiting, or exposing the battery pack to water or fire.

The 4 Pack 1S4P Battery can be used to power an Arduino UNO via its VIN pin. Ensure the battery voltage matches the Arduino's input voltage requirements (e.g., 5V with a step-up converter if necessary).

// Example: Reading battery voltage using Arduino UNO
// This code assumes the battery is connected to an analog pin via a voltage divider.

const int batteryPin = A0; // Analog pin connected to the voltage divider
const float voltageDividerRatio = 2.0; // Adjust based on your resistor values
const float referenceVoltage = 5.0; // Arduino's reference voltage (5V for UNO)

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
}

Note: Use a voltage divider to scale down the battery voltage if it exceeds the Arduino's analog input range (0-5V).

1. Battery Pack Not Charging

   • Cause: Charger not compatible with the battery chemistry or capacity.
   • Solution: Use a charger specifically designed for the battery type and configuration.

2. Uneven Cell Voltages

   • Cause: Cells are not properly matched or balanced.
   • Solution: Use a BMS with cell balancing or manually balance the cells before assembly.

3. Overheating During Operation

   • Cause: Excessive current draw or poor thermal management.
   • Solution: Reduce the load or improve ventilation around the battery pack.

4. Short Runtime

   • Cause: Degraded cells or excessive self-discharge.
   • Solution: Replace damaged cells and ensure proper storage conditions.

Q: Can I use different types of cells in a 1S4P configuration?
A: No, all cells should be of the same type, capacity, and internal resistance to ensure safe and efficient operation.

Q: How do I calculate the total capacity of the 1S4P battery pack?
A: Multiply the capacity of a single cell by the number of parallel cells (e.g., 4 cells × 2500mAh = 10,000mAh).

Q: Is a BMS necessary for a 1S4P battery pack?
A: Yes, a BMS is highly recommended to protect the battery pack from overcharging, over-discharging, and short circuits.

Q: Can I connect multiple 1S4P packs in series?
A: Yes, but ensure each pack has a BMS and the same voltage and capacity to avoid imbalances.