While the 14500 battery shares a similar cylindrical form factor with the 18650, it differs in terms of dimensions. With a diameter of 14mm and a length of 50mm, the 14500 battery is smaller and more compact. However, its reduced size comes with a tradeoff in terms of capacity and energy density. Typically, the 14500 battery offers a lower capacity compared to the 18650, but it still provides sufficient power for low-drain applications. The voltage output ranges from 3.2V to 4.2V, making it suitable for devices that operate within this voltage range. The charging and discharging rates are generally slower compared to the 18650 battery. Due to its smaller size, the 14500 battery finds applications in devices that prioritize portability, such as flashlights, small electronics, and remote controls.
Comparison of Key Specifications
Here is a breakdown of the key technical differences between the two battery types:
Capacity: The capacity of a battery refers to the amount of energy that it can store. The 18650 battery typically has a higher capacity than the 14500, with a typical range of 2000mAh to 3500mAh compared to the 14500’s 600mAh to 1200mAh capacity.
Voltage
Voltage refers to the electrical potential difference between the positive and negative terminals of a battery. Both the 18650 and 14500 batteries have a nominal voltage of 3.7 volts.
Size
The 18650 battery is larger than the 14500, with a length of around 65mm and a diameter of 18mm compared to the 14500’s length of around 50mm and diameter of 14mm.
Discharge rate
The discharge rate of a battery refers to how quickly it can deliver energy. The 18650 typically has a higher discharge rate than the 14500, with a maximum discharge rate of around 20 amps compared to the 14500’s maximum discharge rate of around 6 amps.
Price
The 18650 battery is generally more expensive than the 14500 due to its larger capacity and higher discharge rate.
Applications
The 18650 battery is typically used in high-drain devices such as flashlights, power tools, and electric vehicles, while the 14500 is used in smaller electronics such as remote controls, LED lights, and small drones.
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