How to Use LiPo 2500mAh: Examples, Pinouts, and Specs

The PKCELL LiPo 2500mAh is a lightweight and high-capacity lithium polymer battery designed for applications requiring reliable and efficient power delivery. With a capacity of 2500mAh, this battery is ideal for powering RC vehicles, drones, portable electronics, and other devices that demand high energy density in a compact form factor. Its rechargeable nature and stable performance make it a popular choice for hobbyists and professionals alike.

• RC vehicles (cars, boats, planes)
• Drones and quadcopters
• Portable electronic devices (e.g., handheld gaming consoles, cameras)
• DIY electronics projects
• Robotics and IoT devices

The following table outlines the key technical details of the PKCELL LiPo 2500mAh battery:

The PKCELL LiPo 2500mAh battery typically comes with a two-pin JST connector for power delivery and a separate balance connector for charging. Below is a description of the pins:

Note: Always verify the connector type and pinout before connecting the battery to a circuit or charger.

1. Connect the Battery:

   • Ensure the device or circuit is compatible with the battery's voltage (3.7V nominal).
   • Use the JST connector to connect the battery to the power input of your device.
   • If using a balance charger, connect the balance connector to the charger for safe charging.

2. Charging the Battery:

   • Use a LiPo-compatible charger with a maximum charging voltage of 4.2V.
   • Set the charging current to 1C (2.5A) for optimal charging speed and safety.
   • Monitor the charging process to prevent overcharging or overheating.

3. Discharging the Battery:

   • Avoid discharging the battery below 3.0V to prevent damage.
   • Use a battery management system (BMS) or low-voltage alarm to monitor the voltage during use.

4. Mounting and Handling:

   • Secure the battery in your device using a holder or adhesive to prevent movement.
   • Avoid puncturing, bending, or exposing the battery to water or extreme temperatures.

• Safety First: Always handle LiPo batteries with care to avoid short circuits, overheating, or fire hazards.
• Storage: Store the battery at a voltage of 3.7V to 3.85V per cell in a cool, dry place.
• Balancing: Regularly balance the cells during charging to maintain performance and longevity.
• Disposal: Dispose of damaged or old batteries at a certified recycling facility.

To power an Arduino UNO with the LiPo 2500mAh battery, you can use a DC-DC step-up converter to boost the 3.7V to 5V. Below is an example circuit and code:

1. Connect the LiPo battery to the input of the DC-DC step-up converter.
2. Set the output of the converter to 5V.
3. Connect the output of the converter to the Arduino UNO's VIN and GND pins.

// Example code to blink an LED using Arduino UNO powered by a LiPo battery
// Ensure the DC-DC converter is set to output 5V for the Arduino

const int ledPin = 13; // Built-in LED pin on Arduino UNO

void setup() {
  pinMode(ledPin, OUTPUT); // Set the LED pin as an output
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn the LED on
  delay(1000);               // Wait for 1 second
  digitalWrite(ledPin, LOW);  // Turn the LED off
  delay(1000);               // Wait for 1 second
}

Warning: Ensure the step-up converter is properly configured to avoid overvoltage damage to the Arduino.

1. Battery Not Charging:

   • Cause: Faulty charger or incorrect charging settings.
   • Solution: Verify the charger is LiPo-compatible and set to 4.2V with a current of 1C.

2. Battery Swelling or Overheating:

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

3. Device Not Powering On:

   • Cause: Low battery voltage or incorrect connection.
   • Solution: Check the battery voltage and ensure proper polarity of the connections.

4. Short Battery Life:

   • Cause: Frequent deep discharges or improper storage.
   • Solution: Avoid discharging below 3.0V and store the battery at 3.7V to 3.85V.

• Q: Can I use this battery for a 5V device?

  • A: Yes, but you will need a DC-DC step-up converter to boost the voltage to 5V.

• Q: How long does it take to charge the battery?

  • A: At 1C (2.5A), it takes approximately 1 hour to fully charge the battery.

• Q: Is it safe to leave the battery connected to a device?

  • A: Only if the device has a low-voltage cutoff to prevent over-discharging.

• Q: Can I use this battery in cold weather?

  • A: Yes, but performance may decrease below -10°C. Avoid charging below 0°C.

By following these guidelines, you can safely and effectively use the PKCELL LiPo 2500mAh battery in your projects.