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The difference between 12v DC Motor and 24v Motor


The difference between 12v DC Motor and 24v Motor

Although right now there are similarities between a 12v DC motor and a 24 Volt Motor, there are also distinct differences. Overall, these motors are created to perform almost identically other than a 12-volt motor draws twice the existing from its 12-volt supply than a 24-volt motor draws.

The power supplied to both motors would be similar for a given mechanical load.

Key Comparisons

Understanding their similarities is just as important as knowing about the differences between 12v DC motors and 24-volt motors. Of course, dealing with the experts at HZPT Motors, the design and manufacturing are dealt with by highly skilled engineers. Within the buying process, a firm representative can clarify in greater fine detail the information specific to the type of motor you intend to purchase.

However, with regard to example, a few of the critical comparisons between a 12v DC motor and a 24 Volt Motor are provided below.

If 20 amps are required for a 12v DC motor to supply a separate mechanical power output, then only 10 amps would be needed by a 24-volt engine to achieve the same level of performance.
For a simple kind of DC motor, the rotation is at full speed on no load, with quickness determined primarily by the applied voltage. Therefore, if 24 volts had been put on a 12v DC motor, it could cause some damage by running at twice the speed.
In most cases, a 12v DC motor will be comparable in price to a 24-volt motor for the same application. The primary reason is undoubted that the engine’s physical size can generally determine its power result.
There is also a difference in wiring for a 12-volt motor versus a 24-volt electric motor. For example, at 24 volts, the smaller wire can be used for delivering power efficiently, whereas, for 12 volts, twice the size of the wire is needed to provide the same amount of power.


More details:  Difference Between a 12V DC Motor and a 24V DC Motor

A 12V DC Motor requires twice the amount of power from a standard electrical supply, while a 24V motor uses half as much. The difference between the two motors lies in their speed and torque. Speed is measured in revolutions per minute, while torque is measured in newton meters. As a result, a 24V motor requires just two Amps to perform the same task.


DC Motor

The power of a 12V DC motor is twice as much as that of a comparable 24-volt DC motor. The voltage between the two engines is the same, but the 24V model will draw half the current. Both motors will operate at a slightly slower speed but will be close to each other in torque and heat. Because the voltages are not balanced equally, the torque of each motor will be significantly reduced.

In a series circuit, everything in the course is connected in a series. When an appliance is switched from one to the other, it will be affected by the current flowing through the switch. The motor will heat up if it is continuously operated at its continuous rating, but the switch will remain open until there is no more current. A safety limit is set for each type of motor must be adhered to.

When considering which motor to buy, it is essential to consider its speed, torque, and maximum output. Engines can be considered powerful if they can reach their full speed and torque without running into problems. In addition, you need to consider the motor’s weight as well as the size and shape of its housing. To choose between the two, you can read the specifications for both types of engines. This way, you will have an idea of what size to purchase.

A critical parameter for DC motors is the nominal voltage. High voltage increases amperage, increases temperature, and shortens the lifespan of the motor, especially when the engine is lightly loaded. If you use a 24v motor to hook up to a 12v battery, the motor will spin for a while but with no torque. This is like running a motor with only half of its spark plugs.


What is the speed difference between a 12v DC motor and a 24-volt DC? The answer lies in the amount of current the motor requires to perform the same task. A 12v motor draws about twice as much current as a 24V motor. The difference in current is primarily due to the size of the wires. The 24-volt motor has a much smaller wire than a 12v DC motor, allowing for more efficient delivery of power. In addition, the 24-volt motor requires only half as much current.DC Motor

In general, you can expect to see a noticeable difference between a 12v and a 24-volt motor, depending on the size of the gearboxes and other components. The speed difference between the two motors is around 2x, and running at this speed can destroy the armature. Unless you’re making a high-speed device, you’ll want a 24V motor.

While the two-volt power wheels share some of the same components, the 24-volt version is more powerful. It can reach speeds of six miles per hour and lasts between two and four hours. Both systems have their advantages and disadvantages. In terms of efficiency, the 24-volt model is usually better for heavier and more rugged children. The speed difference between the two motors is a matter of preference. When buying a ride-on car, check for the voltage before buying it.

Besides speed, the difference in torque is also significant. The torque is higher halfway between the unloaded and stalled state. For this reason, the output power is calculated as torque x rpm/9.57. This will help you determine whether the 12v motor is better for your needs. There are some ways to increase the torque of your engine without compromising on performance. In addition to this, consider the torque and power delivered by the 24v motor.

Watts rating

DC Motor

The Watts rating of a 12v DC motor is smaller than that of a 24V motor. The reason is that these two voltages have different potentials. If they were equal, the engine would draw the same current. Also, the watts rating of a motor is not based on the current. The actual current consumption depends on the load. The higher the load, the more current the motor will draw.

When comparing the power output of a motor, it is essential to remember that the voltage of the system is not as crucial as the Watts rating of the engine. Watts are measured in continuous power, while amps are measured in peak or momentary power. The voltage rating is simple to understand. The Amps rating, on the other hand, is much more complicated. However, it is still essential to consider the Watts rating when choosing a motor.

Although the Watts rating of a 12v DC motor is the same as a 24v DC brushed DC motor, the former will draw twice as much current from the 12-volt supply. A 24v DC motor would also run twice as fast, but if it had been twice as fast, it could cause damage. The difference between the two motors is not the same, but it does help you choose a motor accordingly.


By their efficiency, you can compare the weight of a 12v DC motor and a 24v motor. The efficiency of the engine is defined as the ratio of energy it uses to produce the same amount of energy. While most motors can make about the same amount of energy at optimum speeds, there are some differences. In general, a high-efficiency engine will have more energy than one that is low-efficiency.


An excellent way to compare the power of a 12v DC motor to a comparable 24-volt unit is to compare the two different stall currents. The stall current for a 24v motor is twice that of a 12V motor, causing four times the heat. However, a 24V motor is still much faster and can achieve speeds of up to 6mph. Regardless of the power rating, these differences can still help determine whether one type is best for a given application.

If there were an improvement between the two types of motors, an engineer would have made it. If the 24v system worked, most new cars would not turn over, while older cars would turn over but only at half the power. It is not worth the time and money to fix an old car with a dead 24v system – and there’s no guarantee that adding more power will make it work better.

A system’s voltage and amperage ratings have little bearing on how much power a motor can produce. The Watts rating of the engine and controller is what determines how much power a motor will produce. Likewise, a 24 Volt DC motor with a 500 Watt rating will produce the same amount of torque. As a result, it’s essential to select a motor with the proper Watt rating.

The 24-volt motor’s armature windings handle 24 volts of current. If it runs at half the voltage, the motor will likely run hot and could even burn out. However, running a 12-volt engine on a 24-volt battery could cause some problems. Firstly, the 12-volt battery won’t be able to power a 24-volt motor. Therefore, it’s best to avoid the 12-volt battery for a 24-volt engine.