Electric car magnet steel demagnetization should do?
Two to consider a combination of voltage and capacity to use the selection of battery electric vehicles, such as some 8 vehicles with 24 volt ampere hour, some vehicles with 48 volt 16 ah, the price will vary 2-3 times. The each one takes what he needs.Three best buy have independent development, production, use of patents, brand machine good customer service service system; try not to buy the kind of purchased parts assembly, with low price and configuration, exaggerated propaganda, with poor quality, low impact on the market. Although the two may look similar, but materials, spare parts, processing technology, after-sales service there is a big difference between ~!Personal advice, you go or change it, nothing else, can not be repaired, repair it is more expensive than buying one
Two differences, high speed motor, as the name implies ~ strong power, strong start climbing and motor power, high efficiency (up to 80 - 85%) of long mileage, long battery life. But because of high speed motor, internal gear reducer, large torque, so the cost is high; and in a state of no power cycling the resistance is small. There is a small drawback is the high machine high speed motor, gear motor slightly chorus and remove more complex.The advantages of a low speed motor in low speed, no gear transmission system is very low. So the noise of motor and motor wear, low failure rate, easy maintenance. The shortcoming is almost do not have the advantages of high ~ machine is of course relatively. But because the motor magnet demagnetization, 2 - 3 years, the power decreased after the replacement of new battery, a charge to continue the ability significantly reduced.
When you buy a car, ask whether it is a high speed motor or a low speed motorHigh speed motor and low speed motor structure is different, the price difference is about 200 yuan, when buying a car, must ask clearly the motor configuration. The structure of brushless motor is similar to that of low speed motor. High speed motor at 400 yuan / more, low speed motor prices at 200 yuan / only
