What happens if a 72V electric vehicle is connected to a battery in parallel?

Updated on Car 2024-08-11
35 answers
  1. Anonymous users2024-02-15

    It turned out that it should be six batteries connected in series, which is 72V.

    These six batteries, also known as the battery group, this battery group, not six batteries are connected together at will, is the manufacturer through instrument measurement, from many batteries, screen out the characteristics of the six batteries together, in this way, can make this group of batteries play a greater output efficiency, also known as battery matching. If this is not the case, the characteristics of each battery are very different, and the output power of the existing battery will be produced.

    The problem of large and small, even if the power is consumed on a certain battery, the difference in the burden of each battery is also very large, and it cannot play a greater output efficiency. This is determined by the characteristics or properties of the battery.

    That's pretty much how it works. Knowing this principle, you should know that a battery group cannot be connected in series or in parallel at will, that is, it may not play a good role, and it may break the original battery.

  2. Anonymous users2024-02-14

    The 72V battery bank consists of 6 batteries connected in series, if a 12V battery is connected in parallel on any battery, the output voltage is still 72V, if a 12V battery is connected in series in this battery group, then the voltage will become 84V. If the 12V battery is directly connected in parallel at both ends of the 72V battery bank, then the 12V battery will immediately heat up and bulge or even ** (provided that the 72V battery is fully charged and can be used correctly).

  3. Anonymous users2024-02-13

    If a battery is connected in parallel, the voltage is still 72 volts, the current will increase, and the circuit will have problems and be dangerous.

  4. Anonymous users2024-02-12

    What happens if a 72V electric vehicle is 'paralleled' with a battery with the same 'voltage' as the original: the increased capacity increases the range.

    If it's 'tandem', it's a different story.

  5. Anonymous users2024-02-11

    If you connect one of the batteries in parallel on the basis of 6 batteries, the battery voltage is still 72V, and the power is slightly increased, if you connect a 12V battery in parallel to the 72V battery group, then the output is 12V.

  6. Anonymous users2024-02-10

    Don't blindly transform, this is not only unsafe, but also not allowed, besides, the battery parallel parameters must be consistent.

  7. Anonymous users2024-02-09

    Tandem connection method. It is to put the negative pole of a battery (black.

    Connect the positive electrode (red) of the next battery, and then connect the negative electrode (black) of this battery and the positive electrode (red) of the next battery. And so on, the positive pole of the first battery and the negative pole of the last battery are the positive and negative poles of this battery pack.

  8. Anonymous users2024-02-08

    One battery is 12V, and six in series are 72V.

  9. Anonymous users2024-02-07

    The positive and negative poles of each group of batteries can be connected.

  10. Anonymous users2024-02-06

    The positive electrode and the negative electrode and the positive electrode and the negative electrode and the positive electrode and the negative electrode and so on, and finally there is a positive and negative electrode left.

  11. Anonymous users2024-02-05

    6 batteries of electric vehicles 72V should be connected in series.

  12. Anonymous users2024-02-04

    Hello There are harsh conditions for the parallel use of batteries, which require the same factory, the same model and specifications, the same batch, and the same access circuit at the same time, and the same use environment, otherwise, it is not recommended to use.

    The reason is: if the battery power is inconsistent, discharge: batteries with different capacities, when discharging, there will always be one that discharges first, while the other is still with a higher voltage, charging:

    Batteries with different capacities, when charging, there will always be one that is fully charged first, while the other is still lower in voltage, and the battery is in deficit: the battery voltage is lower than the rated voltage.

    Below 10%, there will be a risk of power loss, and once the battery loses power, its life will be shortened by 80%, and the battery will be overcharged: the battery will be overcharged, which will break the chemical balance.

    And accompanied by the electrolysis of water, it will also damage the battery, charging between the batteries: when the voltage of a battery drops, the battery with high voltage will charge it, and the current size is not controlled, if this current is superimposed with the charging current from the generator, even if it is instantaneous, the damage to the battery is also very large, after a battery is damaged, the good battery will continue to charge it until its own power is exhausted.

  13. Anonymous users2024-02-03

    Of course, yes, but follow the following rules, the batteries are connected in parallel, the voltage remains the same, and the capacity increases, and the batteries are connected in series, the capacity does not change, and the voltage increases. If you are using a 12 volt battery, the battery will still output 12 volts when used in parallel, but it can be used for more time because the capacity is increased.

  14. Anonymous users2024-02-02

    The batteries can be used in series or in parallel.

    When connected in series, the total voltage is the sum of several batteries, and the total capacity is the capacity of one of the batteries; When connected in parallel, the total voltage remains unchanged or the voltage of one battery, and the total capacity increases, which is the sum of the capacities of several batteries.

    Before combining the batteries, the manufacturer has done a parameter test for each battery, and the batteries with similar parameters can be grouped together to make the battery play a greater efficiency.

  15. Anonymous users2024-02-01

    Of course! However, the electricity must be the same, and the voltage must be the same when connected in parallel. Another question is whether there is enough installation space for the battery cart.

  16. Anonymous users2024-01-31

    OK. Electric vehicle batteries can be used in parallel with two groups, but the corresponding battery voltage, capacity, and internal resistance should be the same when the batteries are connected in parallel.

  17. Anonymous users2024-01-30

    As long as the rated output voltage of the battery is consistent, the battery capacity is the same, and the degree of new and old is the same, it can be connected in parallel.

  18. Anonymous users2024-01-29

    If you use it in parallel, there is no effect at all, because its voltage cannot be reached. It can only be used in series.

  19. Anonymous users2024-01-28

    Can the electric chain mold bottle of the battery car be used in parallel? The battery of the battery car is usually a battery that can be used separately, and it is completely usable to use the same voltage and equal and equal shed.

  20. Anonymous users2024-01-27

    The battery car battery can be used in parallel, which can greatly increase the mileage of the battery car.

  21. Anonymous users2024-01-26

    As long as the electrical parameters of the battery are basically the same, they can be used in parallel. The voltage after parallel connection remains the same, but the capacity is increased and the battery is more durable.

  22. Anonymous users2024-01-25

    As long as the capacity and voltage of the battery pack are equal, the battery car battery bank can be used in parallel.

  23. Anonymous users2024-01-24

    Of course, after the battery is connected in parallel, the capacity increases, and the cruising range increases.

  24. Anonymous users2024-01-23

    Battery car batteries are all used in series by a single battery. Used in parallel, 2 conditions must be met, and the battery parameters of the royal stool group must be completely consistent. 2. The total output voltage of the collapse brigade must match the battery car.

  25. Anonymous users2024-01-22

    No, at present, they are all used in series, and the parallel voltage is too low.

  26. Anonymous users2024-01-21

    The battery car battery is connected in series by a single battery.

    The principle is that the series pressurization and parallel capacity increase.

    If you want to use it in parallel, you need to connect the battery pack in parallel to meet the voltage cavity deficit requirements, so that the battery car can run farther away. However, the volume and weight will increase a lot.

  27. Anonymous users2024-01-20

    It is not recommended to add one more group of lithium batteries, the discharge capacity depends on the five groups with small capacity, and the battery series should be connected to ensure that the capacity is consistent.

    Although a new battery is connected in series, the electronic components will generally not break down due to the withstand voltage problem, but some controllers, the undervoltage and overvoltage protection range considered when designing is relatively small, so adding an extra battery does not rule out that the overvoltage protection will act, and the voltage protection range on the controller needs to be adjusted to be used normally.

    Electric car modification is very dangerous, not advocated, mainly because the tires are relatively small, the frame is thin, the braking performance is very average, you increase the speed of the car, the power is up, the car is very floating, and it is easy to have an accident. And with the addition of batteries, the state of the new and old batteries is inconsistent, and they break down quickly.

  28. Anonymous users2024-01-19

    72-volt battery car, you can add a group of 72-volt lithium battery, but you need to configure a special 72-volt lithium battery charger, lithium battery and lead-acid battery can not be mixed together, and you need to use a special switch control when switching the power supply.

  29. Anonymous users2024-01-18

    What do you want to add an extra set of lithium batteries for? What purpose? The battery car of the product does not need an external battery, the original product design should be reasonable, maybe you are too short for the battery life and mileage?

    Want to add battery life for longer battery life? However, there needs to be more space for the battery, which also adds weight to the car. When buying a car, it is better to buy a car with a large mileage and a large battery capacity.

    Lead-acid batteries and lithium batteries should not be used together, charging needs to be separated, charging separately is very inconvenient, it will be very troublesome, and it cannot be used in parallel, let alone in series. Different batteries also involve balancing problems, etc., if you carry an extra set of batteries for backup, it is equivalent to increasing the burden, and carrying a "heavy burden" every day.

  30. Anonymous users2024-01-17

    You can add more, but you have to connect it in parallel, not in series. This must be connected in parallel, and the motor will be burned if the series voltage is exceeded.

  31. Anonymous users2024-01-16

    Batteries can be connected in parallel, but there are requirements for batteries and need to be consistent.

    Usually, when the battery is combined in series and parallel, it is necessary to pair all the cells, including capacity, voltage, internal resistance and even discharge curve and other parameters to ensure good cell consistency and maximize the benefits of the battery pack.

    Therefore, if the two batteries of 48V are used in electric vehicles, it is not recommended to use them in parallel, it is recommended to use them one by one, because the protection plates, cells, internal resistance and other parameters of the two groups of batteries are different, and the parallel use will make the two groups of batteries charge and discharge each other, and lose power!

    It's best to connect a toggle switch between the two batteries, and use one before turning to the other.

  32. Anonymous users2024-01-15

    No, two parallel together is called parallel, and the capacity will become larger when connected in parallel, and the rest of the battery capacity is assumed to be 20 amps, then this is 40 amps, and the controller will also burn out.

  33. Anonymous users2024-01-14

    Yes, it is equivalent to increasing the capacity of a set of batteries.

  34. Anonymous users2024-01-13

    There are 6 of them! Electric vehicle battery is the power of electric vehicles, and the vast majority of electric vehicles are equipped with lead-acid batteries, which are cost-effective and cost-effective. Because this battery can be recharged and can be used repeatedly, it is called a "lead-acid battery".

    There are four types of power batteries that can be used by electric bicycles, namely valve-regulated lead-acid maintenance-free batteries, colloidal lead-acid batteries, nickel-metal hydride batteries and lithium-ion batteries. The battery standard for electric vehicles is a 12V.

  35. Anonymous users2024-01-12

    No, if a battery is fast, the symptoms are: when fully charged, the driving distance is significantly shorter than before, and the electric vehicle shows that the number of charging compartments is unstable. If you charge when there is no power, and if you don't charge the charger for a while, it will show that it is fully charged.

    The electric battery can be described as the heart of the electric vehicle, the performance of the battery directly affects the overall state of the electric vehicle, if the battery is damaged, the light will affect the user's daily use, and the serious will also cause a fire. Generally speaking, the battery of an electric vehicle can be used normally for 1-2 years, and when the battery of an electric vehicle is used for much longer than the normal use time, it will begin to affect the normal performance of the electric vehicle.

    If the following happens to electric vehicles:

    1. The battery of the electric closed-trouser car is full as soon as it is charged, and it is out of power as soon as it is used;

    2. It has been used for more than three years, and the performance has dropped sharply;

    3. The battery is charged and heated, and the phenomenon of bulging occurs;

    4. The battery capacity is less than 60% of the normal capacity;

    In order to avoid dangerous situations such as short-circuit car shortage, broken circuit, and **, it is recommended that you must replace the battery of the electric vehicle in time.

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