The 12V 4000mAh rechargeable battery pack is a versatile power source designed to provide a stable 12 volts of electrical potential with a capacity of 4000 milliamp hours (mAh). This battery pack is ideal for powering a wide range of electronic devices, including robotics, portable electronics, IoT devices, and small-scale renewable energy systems. Its rechargeable nature makes it an eco-friendly and cost-effective solution for long-term use.
The following table outlines the key technical details of the 12V 4000mAh battery pack:
Specification | Details |
---|---|
Nominal Voltage | 12V |
Capacity | 4000mAh (4Ah) |
Chemistry | Lithium-ion or Lithium-polymer |
Maximum Discharge Current | Typically 2C (8A) |
Charging Voltage | 12.6V (for lithium-based batteries) |
Charging Current | Recommended: 0.5C (2A) |
Dimensions | Varies by manufacturer |
Weight | Varies by manufacturer |
Connector Type | Commonly XT60, JST, or barrel jack |
Cycle Life | ~300-500 cycles (varies by usage) |
The battery pack typically has two main terminals or wires for connection:
Pin/Terminal | Description |
---|---|
Positive (+) | Supplies the positive 12V output |
Negative (-) | Supplies the ground (0V) connection |
Some battery packs may also include a third wire for battery management system (BMS) monitoring or balancing.
Below is an example of how to connect the 12V 4000mAh battery pack to an Arduino UNO using a voltage regulator to step down the voltage to 5V:
// Example code for Arduino UNO powered by a 12V 4000mAh battery pack
// This code blinks an LED connected to pin 13
void setup() {
pinMode(13, OUTPUT); // Set pin 13 as an output for the LED
}
void loop() {
digitalWrite(13, HIGH); // Turn the LED on
delay(1000); // Wait for 1 second
digitalWrite(13, LOW); // Turn the LED off
delay(1000); // Wait for 1 second
}
Battery Not Charging:
Battery Drains Quickly:
Circuit Not Powering On:
Battery Overheating:
By following these guidelines and best practices, you can ensure safe and efficient use of the 12V 4000mAh battery pack in your projects.