The electric car is hot, but it has not been charged, can I continue to use it?

Updated on Car 2024-03-21
34 answers
  1. Anonymous users2024-02-07

    If the battery is hot, it can still be used if it is not serious. Because the battery charging process itself willFever, so a slight fever is normal. If the battery is hot caused by using a mismatched charger, you can solve it by simply using a charger that matches the current and voltage of the battery.

    If the battery is hot due to overcharging, you only need to control the charging time.

    It usually takes 8 hours to fully charge, and it can be floated for 1 to 2 hours, and the longest is not more than 12 hours.

    causedElectric vehicle batteriesThere are several reasons why charging is hot:

    1. Mismatch between the battery and the charger: The mismatch of the charger will cause the power supply to heat up when the battery is charged, so there will be hot and hot heating.

    2. Charger heating problem: Generally, the charger does not have pulse and negative pulse negativity function, and usually cannot keep the voltage constant in the later stage of charging, resulting in the battery voltage exceeding the allowable value, resulting in a large amount of battery leakage, water loss and heating.

    3. One of the batteries is short-circuited: you can take the multimeter.

    to measure the voltage of each battery, and if you find a very low voltage that is short-circuited, replace it with a new battery.

    4. Battery problems: battery aging, increased internal resistance, and electrolyte caused by battery heating.

    Drying, internal short circuits, etc.

    5. Increase in battery usage: With the increase in battery usage, including charging and discharging, water molecules in the battery.

    gradual loss, causing the battery to heat up in an electrochemical reaction; In addition, during charging and discharging, sulfuric acid crystals will form in the battery solution, and the precipitation will adhere to the battery plate, resulting in battery resistance.

    and an increase in heat. If the battery is caused by a short circuit, the battery will heat up.

  2. Anonymous users2024-02-06

    It is normal for the electric vehicle battery to be charged and heated, but the temperature cannot exceed 50 degrees, there is no problem within this range, of course, if the temperature is too high, you can stop for a while and then charge it.

  3. Anonymous users2024-02-05

    Answer, the electric car charging is hot, or not charged, this problem depends on how long you charge, if it comes to the specified time, look at the charger green light is on, the red light should be off, if the red light has been displayed on, it means that the charger has a problem, the other one can be used to detect whether the battery has a problem, the above two problems, there is always one.

  4. Anonymous users2024-02-04

    If the battery level of the electric vehicle is not fully charged, but the battery has been heated. At this time, it should be suspected that the battery capacity has been reduced and the battery has been used for too long. If the battery range is still enough, don't charge it for too long, just charge it for 5 hours.

  5. Anonymous users2024-02-03

    The electric car charging is hot, and it has not been charged yet, so it should be able to continue to be used for the time being, but the electric car can't go far. It is recommended that you change to an electric car battery.

  6. Anonymous users2024-02-02

    You're talking about the battery being charged hot, right? This one needs to be recharged, and a new battery needs to be replaced.

  7. Anonymous users2024-02-01

    It is dangerous to charge the battery of the battery car, and it is normal for the lead-acid battery for the battery car to have a trace of heat during charging. However, if the fever is abnormal (hot hands), it is not normal. The lead-acid battery itself will not be **, due to abnormal heating, it may cause thermal runaway of the battery and cause the battery to bulge.

    Some users like to buy one online after the electric vehicle charger is broken, and often rarely consider the matching of the charger and the battery voltage and current. In addition, some users also like to mix chargers, and the mixing of different models of chargers will also affect the battery. In short, charging the battery with such an EV charger will cause the EV battery to overcharge.

    For such a problem, the general solution is to make a special charger for special cars, which can solve the problem of electric vehicle battery charging and heating.

    Causes: 1. The problem of the battery itself, the aging of the battery, the internal resistance becomes larger, the electrolyte dries up, and there is a short circuit inside to cause heating. The battery is added with the number of uses, which involves discharging and charging, and the water molecules in the battery are gradually lost.

    2. This is what we are talking about when the battery is gas and water loss, which will affect the heating of the battery in the electrochemical reaction; In addition, the battery solution forms sulfuric acid crystals and precipitates sticky on the lead plate during the charging and discharging process, which affects the increase of battery resistance and heat.

    3. Charger problem, most of the chargers do not have pulse function, and there is no negative pulse to eliminate polarization function, this kind of charger can not be used in the later stage of charging under normal circumstances, so as to cause the battery voltage to exceed the allowable value, then it will affect the battery large dose of gas separation, water loss, and heating. In order to fundamentally solve the problem of battery heating affected by the charger problem, it is necessary to accurately use the electric vehicle charger.

  8. Anonymous users2024-01-31

    In the process of charging the battery, it is normal for the battery to heat up (no more than 30 degrees). If it overheats, it's not normal. There are three types of problems that cause overheating:

    1.A battery that has been used for too long and is close to the end of its life, 2The battery with too large charging current or too long charging time does not change the lamp, 3

    There was a problem with the charger.

  9. Anonymous users2024-01-30

    Hello, the reason why the charging is hot:

    1., the battery and charger do not match, resulting in the electric vehicle battery charging heat.

    2.The charger parameters are inaccurate, resulting in the charging of the electric vehicle battery heating up.

    3.One of the small batteries had a short circuit, causing the EV battery to heat up.

    4.Irregular charging, resulting in electric vehicle battery charging heat.

    Once the charge is hot, you can turn off the power to cool down for a while, and then recharge again, if this situation still occurs, go to the repair shop to check the safety point.

  10. Anonymous users2024-01-29

    It's too normal, when the battery is charging, the charging current flows through the internal resistance of the battery, and it will produce dissipation, and the power consumed is generally converted into heat, so it will definitely heat up. As long as the temperature does not exceed 70 degrees, there is no risk to the battery.

  11. Anonymous users2024-01-28

    Normal, this is normal, most of this situation will be hot, not feverish is strange.

  12. Anonymous users2024-01-27

    It's normal to get a little hot, but if it's bad, it's not normal and the battery needs to be replaced.

  13. Anonymous users2024-01-26

    If it's a little hot, it's normal, if it feels hot, it's not normal, it may be due to charger problems or battery lack of liquid, most of the batteries that have been used for a long time will be out of liquid, resulting in no turning of the light, and the battery is seriously heated.

  14. Anonymous users2024-01-25

    Under normal circumstances, the charger charges the battery, the charging current is proportional to the heat, and the slight heat is within the normal range.

  15. Anonymous users2024-01-24

    It is normal for the battery to be charged and heated with a slight feeling of heat on the touch, if the temperature is too high, it is abnormal, the charging current is too large, or the calcification area of the battery is too large.

  16. Anonymous users2024-01-23

    The electric car is charged, and the battery is heated. If the temperature is not very high, then it is normal, but if you say that your hands are hot to the touch, then it is definitely abnormal.

  17. Anonymous users2024-01-22

    When charging an electric vehicle, it is normal for the battery to heat up. But it's not normal for the temperature to rise too high.

  18. Anonymous users2024-01-21

    This is a normal phenomenon, the larger the battery charging current, the more powerful the electrolyte reaction in it, and the greater the heat generation.

  19. Anonymous users2024-01-20

    Charging of battery cars. It is normal for the battery to have a slight heat. But if it's overheating, it's not normal.

  20. Anonymous users2024-01-19

    It's normal to get a little hot, but if it's all hot, it's not good, and it's time to get a new battery.

  21. Anonymous users2024-01-18

    It is normal for the battery to heat up slightly when the electric vehicle is running.

  22. Anonymous users2024-01-17

    There are some when the charger is chargingFeverIt is a normal phenomenon, but if it is hot, it is not normal, one is that the current of the charger itself cannot reach l000ma, so that the charger is hot, and the other is to be chargedBattery internal resistanceThe change can't stand the impact of 1000mA current, which causes the charger to be hot.

    Introduction to EV Chargers:

    EV chargers are specially designed for electric bikes.

    The battery is equipped with a charging device! Classification of chargers: With and without power frequency (50 Hz) transformers, it can be divided into two categories.

    Freight three-wheel chargers generally use chargers with power frequency transformers, which are large in size, heavy in weight and consume electricity, but reliable and cheap; E-bikes and e-motorcycles.

    The so-called switching power supply charger is used, which is power-saving and efficient, but it is easy to break.

    The correct operation of the switching power charger is: when charging, insert the battery first, and then add mains; When sufficient, cut off the mains power first, and then unplug the battery. If you unplug the battery first while charging, especially when the charging current is high (red light), it is very easy to damage the charger.

    The commonly used switching power supply chargers are divided into two categories: half-bridge and single-excitation, and single-excitation is divided into two categories: forward and flyback. The half-bridge type has high cost and good performance, and is often used in chargers with negative pulses; Low cost and market share of single excitation.

    High.

  23. Anonymous users2024-01-16

    It's normal for the charger to heat up while charging, but it's not normal if it comes with burnt plastic and other odors.

  24. Anonymous users2024-01-15

    Normal, as long as the cooling fan inside is running normally and charging, it will automatically jump to the green light.

  25. Anonymous users2024-01-14

    Is it normal for an electric car charger to heat up when charging?

    It's normal for an EV charger to be a little slightly warm when charging.

  26. Anonymous users2024-01-13

    In this season, if it is in summer, the temperature is definitely higher. Sometimes even a slight set. But now. Spring, autumn and winter temperatures tend to be low. It's just lukewarm.

  27. Anonymous users2024-01-12

    This situation basically exists in all electric vehicle chargers, otherwise why should it be designed and installed with a cooling fan?

    But its temperature can't be too high, you can put your hands on the shell quite hot, but not to the point of hot hands.

  28. Anonymous users2024-01-11

    Normal, it is normal to have a fever in summer, and it is recommended to charge it in a place with a lower ambient temperature.

  29. Anonymous users2024-01-10

    If there is a trace of heat during the charging process of the electric motor vehicle battery, it is normal heating.

    Heating during charging, the possible causes of failure are: battery self problems, aging of the battery, internal resistance becomes larger, electrolyte dries up, internal short circuit and other causes of heating. With the increase of the number of uses, including discharge and charging, the water molecules in the battery are gradually lost, which is what we call gas separation and water loss of the battery, which causes the battery to heat up in the electrochemical reaction; In addition, the battery solution forms sulfuric acid crystals and precipitates sticky on the lead plate during the charging and discharging process, resulting in the increase of battery resistance and heating; These two types of problems can be solved by adding water, desulfurization and depolarization and other envy technologies.

    If the battery is heated due to sprinting, it is best to replace it with a new one.

  30. Anonymous users2024-01-09

    Of course, the electric vehicle battery will heat up, because in the process of charging, not all the electric tung jujube can be converted into electric vehicle lights by the closed wheel shed, and some of the electric lights will be emitted in the form of heat in the form of a car, at this time your charger and charging head, and the battery will heat up.

  31. Anonymous users2024-01-08

    The battery of the electric vehicle has internal resistance, and the current will heat up through the internal resistance, which is a normal phenomenon, but the temperature should not exceed 70 degrees, there is no big problem, if it is a lithium battery, it must not exceed 48 degrees. Disturbing the matching, that is, touching the battery with the back of the hand can last for more than 5 seconds. Slow Rock Finger.

  32. Anonymous users2024-01-07

    Under normal circumstances, when the electric vehicle is charging, the charger will heat up, but the temperature will not be very high, within the normal range, will not harm the battery; However, if you encounter the phenomenon of excessive battery heating and the charger does not turn the light, you need to be cautious; In addition, if you feel hot when you touch the charger with your hand, it means that there is a problem with the charger or battery.

    The main reasons for the heating of general electric vehicle chargers are as follows:

    1. Please check whether it is charged in the sun: electric vehicles are forbidden to charge in direct sunlight, charging in the sun can easily cause the charger to heat up, and even have the risk of spontaneous combustion.

    2. Please check whether the battery and charger do not match: try to use the original charger to charge the electric vehicle when charging; Electric vehicles are of different brands, and the battery charger is naturally different, but in the process of use, it will often be mixed, so that the mismatched charger will cause the charger to be unable to control normally when the battery is charged, so there is a hot and hot situation.

    3. Charger quality problems: electric vehicle batteries need to volatilize a certain amount of hydrogen and oxygen when charging, but new batteries generally do not appear this kind of hot situation, because they are all processed by the manufacturer, and the temperature is constant.

  33. Anonymous users2024-01-06

    If the charger is used incorrectly, the charging current will be too large, such as using a 60V charger to charge a 48V battery, which will cause the battery to heat up. Therefore, electric vehicle charging must use a matching charger to be safe and efficient.

    If the battery is not used for a long time, the battery is "starved to death", that is, there is vulcanization on the battery plate, and it cannot be charged, or it has been heated and hot while charging. It is necessary to find a professional to repair or replace it in time. Even if the electric car is not in use, make sure to charge it once a month.

    If the battery lacks electrolyte or is aging or damaged, the charging resistance can also increase, resulting in heating and hotness, so it should be repaired and replaced in time. Generally, lead-acid batteries are guaranteed for one year, and the life span is one to two years.

  34. Anonymous users2024-01-05

    The charger heats up when charging an electric vehicle because:

    1. Squeak, heat, insufficient charging: power on to measure the large capacitor voltage, as long as it is lower than 300V, the general capacitor fails, and it can be replaced.

    2. If the heat is severe and the electric fan is broken, please replace the fan with a new one.

    The heat fan does not turn.

    The main cause of the fault is that the triode that controls the fan (usually 8550 or 8050) is damaged, or the fan itself is damaged or the fan blade is stuck by debris. However, some chargers use intelligent heat dissipation, and for chargers that use this way to dissipate heat, the probability of thermistor damage is very high.

    Method: First of all, use a multimeter to measure whether the triode of the lower control fan is damaged, if the tube is not damaged, then it may be that the fan itself is damaged, you can unplug the fan from the circuit board, and connect a 12V direct current (pay attention to the positive and negative poles) to see if it rotates, but also to see if there is a foreign object stuck. If the fan rotates after a few swings of the fan's wire, it means that there is a broken wire inside the wire or the connector is not in good contact.

    If it still doesn't turn, the fan will break. For chargers with intelligent heat dissipation, in addition to the above checks, you should also check whether the thermistor is in poor contact or damaged, open welding, etc. However, it should be noted that this thermistor has a negative temperature coefficient and should be taken care of when replacing it.

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