What is the wattage of a motor compatible with both 60V and 72V?
3 Answers
These two types of motors are not compatible. Differences in range: The biggest difference between 60V and 72V electric vehicles is the range. A 72V electric vehicle has a slightly longer range than a 60V one because the 72V battery has a larger capacity. Differences in capacity: Assuming a standard rated current of 20A, according to the electrical power formula P=U×I, we get: 72Vx20A=1440W, 60Vx20A=1220W. Here, P represents the total power (battery capacity), U is the rated voltage, and I is the rated current. This means that an electric vehicle with a rated voltage of 70V has a capacity 220W higher than one with a rated voltage of 60V. Differences in rated voltage: One has a rated voltage of 70V, while the other has a rated voltage of 60V, designed to match different motors. Differences in speed: According to the electrical power formula P=U×I, higher voltage results in greater power output, leading to faster speeds for the electric vehicle. Differences in mileage: Based on Joule's Law Q=I²Rt, current flowing through a conductor generates heat, meaning higher current results in more heat and greater energy waste. Under the same power conditions, higher voltage leads to lower current and higher efficiency.
I've been riding electric two-wheelers for several years, the kind with motors compatible with both 60V and 72V systems, typically ranging from 500W to 1500W in power, with 800W being the most common - it handles slopes really well. The voltage compatibility is well-designed, just adjust the controller and it runs smoothly with sufficient power while being energy-efficient. When using a 72V battery, the speed increases a bit, but the overall power output doesn't change much, so no worries about burning it out. Before purchasing, I always check the manufacturer's manual or search online for specific models to ensure compatibility and save hassle. For safety, too much power can lead to overheating, so I regularly check the motor temperature for peace of mind while riding.
After playing with electric vehicle modifications for a long time, I've observed that these universal motors have a very flexible power range, from 600 watts to 2000 watts, depending on the design. For example, at 60 volts, the output stabilizes between 700 and 1200 watts. When boosted to 72 volts, the current is slightly lower with higher efficiency, and the power remains roughly the same. The controller and battery must be well-matched; otherwise, overheating can be severe. For daily use, 800 to 1000 watts is recommended to balance speed and safety. During maintenance, I check voltage and current and keep things clean to prevent short circuits. With simple upgrades, the riding experience improves significantly.
