How to maintain an electric car in winter? How to maintain an electric car in winter?

The battery of the electric bicycle is closed, generally speaking, there is no important manual maintenance work, the main thing is charging and discharging, the general principle is to charge with small current, use small current, use to exhaust, charge to sufficient, charging generally do not use too much current too fast, in use to prevent large current, not to short circuit, if not used for a long time, every one to two months to charge and discharge once, but also must be exhausted and then sufficient, otherwise, the battery will not be used will be broken. When charging, use a special charger, high-end electric vehicles have a good charger, it has an automatic function, the first time to use the method of charging according to the manual. In use, it is necessary to pay attention not to have too much load, that is, when starting, going up and down the slope, it is best to manually assist, otherwise the current will be very large, causing the battery to heat up and shorten the life.

The maintenance of electric vehicles in winter is mainly the maintenance of the battery, so I will share my maintenance experience. The first is to choose a car, this is a more critical step, directly determines the difficulty of maintenance in the later stage, I will choose to use the automotive grade lithium battery electric vehicle, because the automotive grade lithium battery is of higher quality, better anti-low temperature performance, such as the new day automotive grade lithium battery is a hail, it uses 4 automotive grade standards, the discharge temperature can reach -20 55, the attenuation rate is smaller than that of ordinary batteries at low temperatures, and it is safer and more powerful.

The second is that it is best not to charge at sub-zero temperatures in winter, because the resistance of electric vehicle batteries is very high at sub-zero temperatures, which is not only difficult to charge, but also may have potential safety hazards. If you don't ride for a long time, remember to turn off the air switch in the battery compartment, and charge it once after a while, otherwise it may cause overdraft of the Qinfan battery and cause irreversible damage. This is how the electric car I was sleepy was maintained, and it didn't decay much in winter.

Increase the number of charging times In winter, do not let the electric Chang Jianchi be in a state of insufficient power for a long time, and be sure to develop the habit of charging in time no matter how much you travel every day.

It is better to have a basement, if you don't have it, look at the car cover as much as possible, cotton.

1. Regularly test the function of the battery.

When it is detected that the function of the battery is lower than the standard value, it should be replaced in time to avoid the engine not starting normally. In addition, do not park your car in the open air, and try to park in a warm space to prevent the battery from being damaged by ice.

2. Choose the right charging method.

1) Early charging before use: Charging again 1-2 hours before using the car, at this moment the vehicle charging system will heat up the battery, which can improve the use function of low temperature.

2) Timely charging after use: The battery temperature will increase after the electric vehicle travels, and charging at this moment can improve the charging speed and charging power.

3. Timing deep discharge.

It is also beneficial for the battery to have a deep discharge at regular intervals"Activation"As for the battery, I can slightly increase the capacity of the big talk battery. The general approach is to fully charge the battery after the first undervoltage maintenance after riding, and the battery capacity will be increased.

4. Outstanding riding habits.

When driving, you should pay attention to slowly accelerating the start, moving steadily, and preventing violent driving methods such as sharp acceleration, sharp deceleration, sharp turning, and sudden braking. When speeding up, the battery demand of an electric vehicle releases a lot of electricity to increase the speed. Developing excellent driving habits can help reduce the wear and tear of brake pads and the rate at which batteries drain power.

5. Precautions for long-term parking.

1) Disconnect the main power switch: Because there is also a weak current consumption in the vehicle circuit system when parking, the vehicle will be depleted if it is standing for a long time. Therefore, for vehicles that are not used for a long time, the source switch should be disconnected to prevent the power from being consumed too quickly.

2) Long-term shelving will affect the life of the battery: when it is not used for more than half a month in winter, it should be ensured that the power battery is fully charged first and then discharged to 25%-40%.

3) Try to prevent long-term parking when the power is insufficient: If the electric vehicle is shelved for a long time, it is necessary to be alert to the remaining power of the car and prevent parking in the state of power loss. Start it at regular intervals every month, then fully charge the battery and stay alive.

In winter, the battery is prone to being "frozen" and will appear"I didn't run as far as I used to"、"More recharges"situation. How to maintain the electric vehicle battery in winter, take a look at the following content.

First, it is necessary to charge frequently

In winter, the battery of electric vehicles is easy to run out, so if possible, it can be charged at any time, and it must not be used at a loss of power. Even if you don't want to go far and you can use it for 2 to 3 days on a single charge, it is still recommended that you charge it every day, which will help the battery to be in a shallow cycle state and the life of the battery will be extended.

Second, it should be fully charged

Every time you charge the battery, it should be fully charged before use, and if it is often not fully charged, the battery will produce a kind of "memory", which will affect its continuous mileage, and also consume the battery life. For the first time of charging a new electric vehicle, it is best to charge it continuously for 12 hours, but it is best not to charge it for more than 12 hours each time in the future. After half a year of use, it is best to go to the repair point for battery maintenance.

3. Learn to keep warm

The best ambient temperature for battery charging is 25 degrees Celsius, in the cold case of winter, it is necessary to increase the charging voltage and extend the charging time, and take thermal insulation and anti-freezing measures, for example, the electric vehicle battery can be placed in a house with a higher temperature when not in use, and should not be placed directly on the ground. If the battery cannot be removed, the electric car can be parked in the house overnight.

Fourth, be good at helping

When riding, you should use the power assist and glide as much as possible. When going downhill, use the inertia as much as possible to cut down the power and slide in advance. When encountering a traffic light, enter the coast early to minimize braking.

In addition, at the starter. At that time, it is best to add a riding boost, kick the ground with your feet to help the bike start, not only to increase the starting speed, but also to reduce the loss of battery power.

Fifth, pay attention to moisture-proof

When the battery enters a warm room from a low temperature outside, frost condensation will appear on the surface of the battery. In order to avoid battery leakage or short circuit caused by frost condensation, it should be wiped clean in time and dried before charging. In winter, there is a lot of rain and snow, and those who do not rent should ride into deep water and deep snow to prevent the battery and motor from getting wet, and also pay attention to moisture, such as moving the electric vehicle indoors, or covering it with a moisture-proof cloth.

6. Develop good habits

Develop good usage habits, don't brake frequently, don't pull out the speed limiter, don't overload, start slowly, and don't slam the electric door.

Bad potatoes.

7. Equip the battery

The battery is the core component of an electric vehicle, so you still have to choose a well-known manufacturer or brand when buying an electric vehicle or replacing the battery. One price, one goods, don't be greedy. Particularly cheap batteries may be refurbished batteries, inferior batteries, and the quality cannot be guaranteed.

If possible, try to choose lithium batteries, which can not only ensure the life and efficiency of the battery, but also ensure that the chain does not fall off at critical moments.

The battery is most afraid of low temperatures, and in a low temperature environment, the battery capacitance is much lower than that at room temperature. Therefore, it is necessary to check and maintain it in time, and pay attention to it in daily life:

1. Avoid parking the car in the open-air parking lot for a long time, if it is parked for a long time, the battery must be removed and taken away to prevent the battery from being damaged by icing.

2. The car engine is not easy to start in winter, and the time to start the car each time should not exceed 5 seconds, and the interval between starting again should not be less than 15 seconds. In the case that the ignition is still not ignited after multiple starts, the reason should be found from other aspects such as the circuit, the ignition line segment, the circuit or the oil circuit. Avoid multiple uninterrupted starts, which can cause the battery to burn out due to over-discharge.

3. The car battery should be charged by the pin, and the battery will slowly discharge itself until it is scrapped after not being used for a long time, so the car should be started every once in a while to charge the battery.

4. Clean the binding post of the battery every once in a while, and apply special grease to protect the wiring harness. Always check the accessories and connections on the battery.

5. It is forbidden to use automotive electrical appliances after the car is turned off, and the engine will cause damage to the engine if it does not generate electricity.

Lithium batteries have an impact on the range in the cold winter.

Lithium-ion batteries work on the principle that the electrolyte inside changes through a chemical reaction, and a potential difference occurs at the positive and negative electrodes to produce an electric current. In a low-temperature environment, the electrolyte moves quite slowly, which affects the transfer activity of lithium ions between the positive and negative electrodes, resulting in a decrease in the charging and discharging performance of the battery.

To put it simply, in a low-temperature environment, it is not that the lithium battery is really dead, but that there is power but cannot be released normally. According to analysis data, the capacity of ordinary lithium batteries will be reduced by 20 at zero degrees Celsius, and when it reaches minus 10 degrees Celsius, the capacity may only be about half.

Extended Information: Precautions for Winter Use:

1. Find a warm place to charge.

When the ambient temperature is lower than 0, charge the electric vehicle, the system will automatically heat the battery cell first, and when the temperature of the battery cell reaches more than 5, it will really start charging the vehicle. Some EV owners feel that charging their EV in the winter suddenly slows down, which is actually an extra time to heat up the battery cells before charging the vehicle.

Therefore, when the car owner usually charges the car, he should try to choose the underground parking lot, closed garage and other places. This helps to improve the activity of the battery, which not only reduces the loss of range, but also improves the efficiency of charging and saves time.

2. Charge the battery for a short time before traveling.

The day before, the electric car was still 60 or 70 percent charged, but the next morning it was only 30 percent or less charged. Some people call this situation "running electricity". In fact, this kind of "running electricity" is not a failure, but a fault caused by low temperatures.

In the process of driving the electric vehicle, the battery is in a state of continuous discharge, the temperature will be relatively high, and the voltage of the battery is relatively high.

However, after being parked in a low temperature state for a whole night, the battery has cooled down and the voltage drops, at which point the car's system will automatically adjust the displayed power and range, which creates an illusion of "running power". In this case, you generally only need to go out in advance and charge the battery for about 10 minutes.

3. Drive steadily, don't be in a hurry.

When driving an electric vehicle, you should accelerate slowly and avoid intense driving methods such as deceleration, sharp turns, and sudden braking. Good driving habits can effectively reduce the rate at which the battery drains power. The time to start the car should not exceed 5 seconds each time, and the interval between starting again should not be less than 15 seconds.

If the battery mileage drops too much, you should go to the 4S store in time to check the battery of the car, replenish the electrolyte of the battery in time, and adjust the specific gravity of the electrolyte.

Hope, thank you!

1. Try to charge in a high temperature environment.

Whether it is temporary parking or charging, try to choose a place with relatively high temperature (such as underground parking lots, closed garages, etc.) when possible. This is conducive to improving the activity of the power battery, which can not only reduce the loss of mileage, but also improve the efficiency of charging and save time.

2. Charge as you go, and charge when you run out.

Due to the relatively low temperature in winter, when the power battery cell is lower than 0 degrees Celsius, the system will automatically heat the battery cell first, and when the temperature of the battery cell reaches more than 5 degrees Celsius, it will really start charging the vehicle.

Many EV owners will feel that the speed of charging an electric vehicle in winter suddenly becomes slower, but in fact, there is an extra time to heat up the battery cells before charging the vehicle.

Daily maintenance method of electric vehicle:

1. Master the charging time.

In the process of daily use, the charging time should be accurately grasped according to the actual situation, which need to refer to the usual frequency of use and mileage to grasp the number of charges. During normal driving, if there is a warning of the battery, it should be charged in time, otherwise the over-discharge of the battery will seriously shorten its life.

After a full charge, the running time is short, and the charging time should not be too long, otherwise it will form an overcharge and make the battery heat. Overcharging, over-discharging, and under-charging can all shorten battery life. In general, the average charging time of the battery is about 10 hours.

If the battery temperature exceeds 65 during the charging process, the charging should be stopped.

2. Control the control of the throttle.

Due to the fact that owners who have just come into contact with new energy vehicles have a large misunderstanding about the control of trams, many owners like to slam on the electric door to accelerate in the early stage. However, this practice can also have a negative effect on the battery, and in order to prolong the battery life, the driver should try to accelerate evenly and avoid pressing the accelerator as much as possible.

When running at high speed, try to control it at about 100 kilometers per hour, and if the speed exceeds 120 kilometers per hour, an instantaneous high-current discharge will be formed. High-current discharge is easy to lead to lead sulfate crystallization, and general electric vehicles are equipped with kinetic energy ** system, try to turn on that function when running at high speed, which can not only maintain safety but also improve the mileage in a relatively poor state.

3. Avoid long-term power loss.

It is strictly forbidden to be in a state of power loss when the vehicle battery is stored. The state of power loss refers to the fact that the battery is not charged in time after use, and the battery is stored in the state of power loss, which is easy to sulfate, and the lead sulfate crystals are attached to the plate, which will block the ion channel, resulting in insufficient charging and a decrease in battery capacity.

The battery of Xinneng Xushanyuan Automobile needs to be stored after sufficient power, and replenished once a month to maintain the health of the battery, to avoid long-term power loss resulting in sulfation of battery plates, the longer the vehicle is idle, the more serious the battery damage, which is the same as the traditional car.