When choosing between a 12V and a 24V DC electric motor, many wonder whether the higher voltage model is inherently stronger. Both 12V and 24V DC electric motors have widespread applications—from automotive systems and small machinery to robotics and industrial equipment.

However, voltage alone doesn't directly determine the motor's strength, which depends more on torque and power output. At Power Motor, we understand the common confusion around these questions and aim to clarify the real differences in performance, efficiency, and application suitability between these motors.

Product shown: Automotive Tailgate 12V DC Motor

12V vs. 24V DC Electric Motors: What's the Difference?

Both 12V and 24V motors operate on direct current, but doubling the voltage has several notable effects. A 24-volt DC electric motor can draw less current than a comparable 12V motor to deliver the same power. This is because power (watts) equals voltage multiplied by current (P = V × I). For the same power output:

• A 12V motor requires roughly twice the current of a 24V motor.
• Higher current leads to increased heat generation in wiring and motor windings, as described by the resistive power loss formula P_loss = I² × R, where P is the power loss as heat (Watts) and R is the resistance of the wire or winding. This extra heat can affect longevity and efficiency by accelerating insulation degradation and increasing energy losses.

Therefore, a 24V brushless DC motor is generally more efficient under the same power conditions, since it experiences lower resistive losses and generates less heat compared to a 12V motor. This can translate into better durability and performance in applications where continuous or heavy-duty operation is required.

Product shown: Industry Automation 24V BLDC Motor

Is a 24V Motor Stronger Than a 12V Motor?

To answer this, we must precisely define "strength." In motor terms, strength is primarily defined by:

• Torque: The rotational force the motor can produce (typically measured in N·m or oz-in). Torque is what gets a load moving.
• Power: The rate at which work is done (Torque × Speed, measured in Watts or Horsepower). Power represents the overall performance capability of a motor.

If you compare a 12V and a 24V motor designed for the same current, the power output will differ accordingly. The 24V motor can typically produce more power because it handles higher voltage at similar or lower current levels.

However, if the 24V and 12V motors are constructed with different motor windings, magnet types, or torque ratings, voltage alone won't determine which is stronger. Motor design and winding configuration are crucial factors.

For example, a well-designed 12V brushless DC motor with optimized winding can outperform a lower-quality 24V motor in terms of torque and efficiency.

From our experience at Power Motor, we see that 24V motors are often chosen for higher power and efficiency demands, but the motor's actual strength depends on comprehensive specifications, including torque rating, speed (RPM), and winding design.

12V or 24V DC Motors: Which to Choose?

Selection between 12V and 24V DC electric motors largely depends on your application needs. The table below talks about typical scenarios.

Trust Power Motor for Your Motor Needs

Since 2001, Power Motor has specialized in delivering high-quality electric motors, including both 12V and 24V DC electric motors, ensuring our clients maintain a competitive edge.

Our comprehensive experience in motor technology, paired with robust customization capabilities, means we don't just sell motors; we provide engineered motor solutions. Today, our products are widely applied worldwide in:

• Home Appliances—including blenders, juicers, vacuum cleaners, and coffee machines.
• Personal Care Devices—such as electric toothbrushes, hair dryers, and shavers.
• Smart Home and Office Equipment—from electric desks and automatic curtains to garage rolling gates and smart toilets.
• Medical and Healthcare Applications—covering medical atomizers, sputum suctions, and other devices.
• Industrial and Robotics Fields—offering solutions for automation systems, power tools, and robotic mechanisms.

Conclusion

In conclusion, a 24-volt DC electric motor is not inherently stronger than a 12-volt motor based solely on voltage. True motor strength depends on torque, power, and design factors such as windings and magnet type.

While 24V motors often offer better efficiency and reduced heat generation for heavier-duty applications, a well-designed 12V motor can still deliver excellent performance for lighter tasks.

At Power Motor, we combine experience and customization to provide the ideal motor solution tailored to your specific needs. Contact us today to learn more about how our 12V and 24V motors can optimize your project's performance!