How to Use Battery 103450: Examples, Pinouts, and Specs

The EEMB 103450 is a lithium-ion rechargeable battery designed for compact and portable electronic devices. With a nominal voltage of 3.7V and a capacity of approximately 1000mAh, this battery is ideal for applications requiring reliable and efficient power storage in a small form factor. Its lightweight design and high energy density make it a popular choice for consumer electronics, IoT devices, and backup power systems.

• Portable electronic devices (e.g., handheld gadgets, wearables)
• IoT devices and sensors
• Backup power for embedded systems
• Remote controls and wireless communication devices
• DIY electronics projects

The following table outlines the key technical details of the EEMB 103450 lithium-ion battery:

The EEMB 103450 battery typically comes with two terminals for connection:

1. Connection:
   • Connect the red wire (positive terminal) to the positive input of your circuit.
   • Connect the black wire (negative terminal) to the ground or negative input of your circuit.
2. Charging:
   • Use a compatible lithium-ion battery charger with a constant current/constant voltage (CC/CV) charging profile.
   • Ensure the charging voltage does not exceed 4.2V and the charging current does not exceed 1C (1000mA).
3. Discharging:
   • Avoid discharging the battery below 2.75V to prevent damage and capacity loss.
   • Use a battery protection circuit to monitor voltage and current during operation.
4. Mounting:
   • Secure the battery in your device using a holder or adhesive to prevent movement or damage.

• Safety: Do not short-circuit the terminals, puncture, or expose the battery to fire or water.
• Storage: Store the battery in a cool, dry place at a charge level of 40-60% for long-term storage.
• Protection Circuit: Always use a battery management system (BMS) or protection circuit to prevent overcharging, over-discharging, and short circuits.
• Temperature: Operate the battery within the specified temperature range to ensure optimal performance and safety.

To power an Arduino UNO with the EEMB 103450 battery, you can use a DC-DC boost converter to step up the 3.7V nominal voltage to 5V. Below is an example circuit and code:

1. Connect the battery's positive terminal to the input of the DC-DC boost converter.
2. Connect the battery's negative terminal to the ground of the boost converter.
3. Connect the output of the boost converter (5V and GND) to the Arduino UNO's 5V and GND pins.

// Example code to blink an LED using Arduino UNO powered by the EEMB 103450 battery
// Ensure the battery is connected via a DC-DC boost converter to provide 5V to the Arduino

const int ledPin = 13; // Pin connected to the onboard LED

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
}

1. Can I use this battery without a protection circuit?

   • It is not recommended. A protection circuit ensures safe operation by preventing overcharging, over-discharging, and short circuits.

2. How do I know when the battery is fully charged?

   • The battery is fully charged when the charger indicates completion (usually via an LED) and the voltage reaches 4.2V.

3. What happens if I over-discharge the battery?

   • Over-discharging can permanently damage the battery and reduce its capacity. Always use a protection circuit to prevent this.

4. Can I connect multiple 103450 batteries in series or parallel?

   • Yes, but ensure you use a proper battery management system (BMS) to balance the cells and protect them during charging and discharging.

By following these guidelines, you can safely and effectively use the EEMB 103450 lithium-ion battery in your projects.