What does 72v20a mean?
2 Answers
72V refers to six 12-volt batteries connected in series. 20A indicates the size of the battery, which can also be interpreted as the battery's current. Below is relevant information: Introduction: An electric vehicle motor refers to the drive motor used in electric vehicles. Depending on the usage environment and frequency, its form varies, and different types of motors have distinct characteristics. Currently, permanent magnet DC motors are commonly used in electric vehicles. Classification: Electric vehicle motors can be divided into two main categories based on their power supply method: brushed motors and brushless motors. From the perspective of the motor assembly's mechanical structure, they are generally classified into "geared" (where the motor operates at high speed and requires gear reduction) and "gearless" (where the motor's torque output does not undergo any reduction).
Speaking of 72v20a, this is actually a common battery specification for electric bicycles or electric motorcycles. The e-bike I use has this configuration, and it feels particularly solid. 72V refers to the voltage, just like water pressure—the higher it is, the faster the vehicle can go, and it also has more power for climbing hills. 20A indicates the ampere-hour capacity, similar to the size of a water tank—the larger the capacity, the more electricity the battery can store, naturally extending the range. I usually ride it to and from work, with a one-way distance of 15 kilometers. A single charge can last for about three to four trips, roughly 60 kilometers, which is quite hassle-free. When charging, it's best to use the matching charger to avoid overcharging and damaging the battery. It generally takes 6-8 hours to fully charge. On weekends when I go out for outings, I don’t have to worry about running out of power halfway, but I do need to pay attention to road gradients affecting battery consumption. Overall, the battery label helps you estimate your trip in advance, and with proper maintenance, the battery can last over two years.
