How far an electric car battery can run depends on factors

Some electric vehicles actually promote the ability to run electric vehicles far or far, related to the following factors:

1, test the front and rear tire pressure of electric vehicles.

2, check the front and rear brake whether there is a case of death.

3, check the brake power off switch.

4, test battery charger.

5, test the battery balance.

6, check the motor production date and motor type.

The original design of the brake power outage system of the electric car was also originally designed in this way, that is, at the same time as braking, the electric vehicle controller stopped supplying power to the motor, which protected the battery and damaged the motor.

The reason is the same as the above situation. When put on an electric vehicle, what is shown is a large current discharge, which will affect the total battery range.

Effect of chargers on mileage

The main analysis here is the impact of charger voltage on the battery, battery power dissatisfaction, will naturally affect the range of electric vehicles.

Effect of battery imbalance on mileage of electric vehicles.

For the battery caused by the mileage of electric vehicles, the single battery behind the vast majority. A single battery lag will affect the voltage of the entire group of batteries, so even if one of the four batteries fails or lags behind, it will affect the entire group of batteries.

The first condition is easy to judge. After adding the load, the broken cell battery has no voltage. In the second case, if there are only two internal single-cell short circuits, then the voltage detected after the load will generally be above 10V. This seems to be no problem, but in fact, through a professional discharge device through a single charge and discharge. It is clear. The battery voltage in a single cell short circuit is high, but the discharge time of 5A generally does not exceed 30 minutes, which means that the battery has failed.

Effect of length of use and type of motor on mileage.

If it is an electric vehicle that is often overloaded or speeding, its electric power will become demagnetizing or aging with the increase in usage time, which will affect the energy conversion rate of the motor. The power consumption increased, but the torque and speed decreased. To check the type of motor is to determine whether the motor is a brush motor. Brush Motors need to be maintained after a period of use. If not maintained, after use for a period of time, carbon brush wear, change sheet wear or internal carbon powder accumulation of the motor will cause a significant increase in motor power consumption, thus affecting the torque and endurance of the motor.

All in all, there are many factors that affect the mileage of electric vehicles. If battery sellers do not have a certain amount of experience in electric vehicle maintenance and do not have enough battery detection equipment, the batteries that can be used normally may also be judged as damaged batteries. Some batteries that have been damaged have indeed been identified as batteries without problems, so remind users of electric vehicles to choose formal businesses when purchasing and testing electric vehicle batteries to avoid spending money.

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