Battery as the most core component of motorcycles, is also the most expensive part of the three-electric system, it has been the attention of the owners. But how does the motorcycle battery itself combine? In fact, most users are not clear.
The combination of the battery is directly related to its power and endurance performance. Why is it the batteries in series and not the batteries in parallel？This article will tell you the answer.
Table of Contents
Common combination methods of motorcycle batteries
The 48V, 60V and 72V batteries we see in daily life are actually connected by 12V batteries. The 48V is four batteries in series, the 60V is five batteries in series, the 72V is six batteries in series, and so on. batteries in series The more the number, the greater the battery voltage.
TYCORUN ENERGY Motorcycle battery has 48V 50Ah, 60V 50Ah and 72v ebike battery, cells use in battery pack are 3.6V 50Ah ternary lithium cells, with the combination methods are 14S1P, 17S1P, and 20S1P. If you want to know more about TYCORUN ENERGY motorcycle batteries, please click on the picture below.
TYCORUN 60v 50ah battery
As we all know, the speed of a motorcycle mainly depends on the size of the motor current, while the size of the current is determined by the voltage and power, mainly by formula P (power) =U (voltage) * I (current).
That is to say, the greater the voltage, the greater the current, the greater the power of the motorcycle, and the better the performance of the motorcycle. The advantage of series is that it increases the voltage and increases the battery capacity to some extent. The 72V 20Ah and 60V 20Ah both seem to have 20Ah capacity, but the 72V 20Ah has a longer range and more power.
Why do not use motorcycles batteries in parallel
In the era of lead-acid battery, the voltage of a battery is 12V, with the capacity of 12ah, 20ah, 32ah, etc. If it is in parallel, the capacity of the 12V motorcycle battery will become larger，The two parallel sections are 12V 24ah, 12V 40ah, 12V 64ah, Ah becomes larger compared to the discharge of the battery.
However, the voltage is too small. According to the formula of P=UI, its power is also very small to drive ordinary electric two-wheelers. Therefore, it is not feasible to connect in parallel in ordinary electric two-wheelers.
What are the pros and cons of motorcycle batteries in parallel
The characteristics of parallel circuit, in parallel circuit, the total voltage is equal to the voltage of each circuit. That is, the charging voltage on each of the two batteries in parallel is equal to the total charging voltage, i. e., U =U1=U2. According to the formula of I=U / R, we can know that I1=I2 (because the internal resistance of two groups of batteries is certainly not the same, that is, R1=R2, in the case of U1=U2, I1=I2 must be obtained).
That is to say, in the case of the same size charging voltage, the charging current of the two parallel battery groups is different, the charging current of the large internal resistance is small, and the charging current of the small internal resistance is large.
In this way, it is possible that the group of batteries with low charging current is often in a state of undercharging, over time, this group of batteries may increase their internal resistance due to long-term electricity loss. The greater the internal resistance is, the smaller the charging current is, which greatly reduces the service life of the batteries due to such a vicious cycle.
This is not the case with just one set of batteries. On this point, it is enough to show that a single group of electric motorcycle battery pack use is far better than parallel use. Therefore, it is suggested that users should not use two sets of batteries in parallel when the single set of batteries can meet the needs of the equipment, otherwise it will not only shorten the service life of the battery, increase the use cost, but also reduce the comprehensive performance of the battery.
If two batteries in parallel, because of the high power of the equipment, still cannot meet the power needs of the equipment, and use more than 2 groups, such as 3 groups, 4 groups, or even more batteries in parallel use, it is even more unnecessary，two batteries in parallel The use has brought a lot of disadvantages, more batteries in parallel use is more complex, more unfavorable.
What circumstances require batteries in parallel
High-speed electric friction needs to be connected in parallel. Unlike lead-acid batteries, it is not connected by a 12V each battery, it has a 3.7V li ion battery module. The size of a battery is usually measured by watt-hour or degree. Lithium battery also generally has 48V, 60V, 72V models.
Due to the small size of lithium battery, high-speed electric motorcycle can be carried with multiple groups at one time. In order to improve the endurance of high-speed electric motorcycle, the main and auxiliary two or three batteries in parallel is high enough, the two or three batteries in parallel will be used, so as to increase the capacity of the battery to improve the range.
Therefore, the lithium battery is formed in series, and then in the way of two batteries in parallel to enhance the range of the vehicle. Only a few high-speed electric motorcycles will be used, and most of the motorcycles are still mainly in series batteries.
To sum up: Motorcycle battery series is conducive to improve the battery voltage, and then improve the power and endurance performance of the vehicle，if it is in parallel, it can only increase the capacity, but it cannot raise the voltage. Therefore, its power requirements will not be met, which will greatly reduce the performance of the vehicle. In addition, parallel batteries take longer to charge, so they do not apply. what do you think about that?
Lucky
Hi, I am Lucky, graduated from a well-known university in China, now mainly engaged in article editing on lithium motorcycle batteries, and the battery swapping station, I am committed to offering services and solutions about battery swap station for various industries.
Why do not use motorcycles batteries in parallel
Battery as the most core component of motorcycles, is also the most expensive part of the three-electric system, it has been the attention of the owners. But how does the motorcycle battery itself combine? In fact, most users are not clear.
The combination of the battery is directly related to its power and endurance performance. Why is it the batteries in series and not the batteries in parallel？This article will tell you the answer.
Common combination methods of motorcycle batteries
The 48V, 60V and 72V batteries we see in daily life are actually connected by 12V batteries. The 48V is four batteries in series, the 60V is five batteries in series, the 72V is six batteries in series, and so on. batteries in series The more the number, the greater the battery voltage.
TYCORUN ENERGY Motorcycle battery has 48V 50Ah, 60V 50Ah and 72v ebike battery, cells use in battery pack are 3.6V 50Ah ternary lithium cells, with the combination methods are 14S1P, 17S1P, and 20S1P. If you want to know more about TYCORUN ENERGY motorcycle batteries, please click on the picture below.
As we all know, the speed of a motorcycle mainly depends on the size of the motor current, while the size of the current is determined by the voltage and power, mainly by formula P (power) =U (voltage) * I (current).
That is to say, the greater the voltage, the greater the current, the greater the power of the motorcycle, and the better the performance of the motorcycle. The advantage of series is that it increases the voltage and increases the battery capacity to some extent. The 72V 20Ah and 60V 20Ah both seem to have 20Ah capacity, but the 72V 20Ah has a longer range and more power.
Why do not use motorcycles batteries in parallel
In the era of lead-acid battery, the voltage of a battery is 12V, with the capacity of 12ah, 20ah, 32ah, etc. If it is in parallel, the capacity of the 12V motorcycle battery will become larger，The two parallel sections are 12V 24ah, 12V 40ah, 12V 64ah, Ah becomes larger compared to the discharge of the battery.
However, the voltage is too small. According to the formula of P=UI, its power is also very small to drive ordinary electric two-wheelers. Therefore, it is not feasible to connect in parallel in ordinary electric two-wheelers.
What are the pros and cons of motorcycle batteries in parallel
The characteristics of parallel circuit, in parallel circuit, the total voltage is equal to the voltage of each circuit. That is, the charging voltage on each of the two batteries in parallel is equal to the total charging voltage, i. e., U =U1=U2. According to the formula of I=U / R, we can know that I1=I2 (because the internal resistance of two groups of batteries is certainly not the same, that is, R1=R2, in the case of U1=U2, I1=I2 must be obtained).
That is to say, in the case of the same size charging voltage, the charging current of the two parallel battery groups is different, the charging current of the large internal resistance is small, and the charging current of the small internal resistance is large.
In this way, it is possible that the group of batteries with low charging current is often in a state of undercharging, over time, this group of batteries may increase their internal resistance due to long-term electricity loss. The greater the internal resistance is, the smaller the charging current is, which greatly reduces the service life of the batteries due to such a vicious cycle.
This is not the case with just one set of batteries. On this point, it is enough to show that a single group of electric motorcycle battery pack use is far better than parallel use. Therefore, it is suggested that users should not use two sets of batteries in parallel when the single set of batteries can meet the needs of the equipment, otherwise it will not only shorten the service life of the battery, increase the use cost, but also reduce the comprehensive performance of the battery.
If two batteries in parallel, because of the high power of the equipment, still cannot meet the power needs of the equipment, and use more than 2 groups, such as 3 groups, 4 groups, or even more batteries in parallel use, it is even more unnecessary，two batteries in parallel The use has brought a lot of disadvantages, more batteries in parallel use is more complex, more unfavorable.
What circumstances require batteries in parallel
High-speed electric friction needs to be connected in parallel. Unlike lead-acid batteries, it is not connected by a 12V each battery, it has a 3.7V li ion battery module. The size of a battery is usually measured by watt-hour or degree. Lithium battery also generally has 48V, 60V, 72V models.
Due to the small size of lithium battery, high-speed electric motorcycle can be carried with multiple groups at one time. In order to improve the endurance of high-speed electric motorcycle, the main and auxiliary two or three batteries in parallel is high enough, the two or three batteries in parallel will be used, so as to increase the capacity of the battery to improve the range.
Therefore, the lithium battery is formed in series, and then in the way of two batteries in parallel to enhance the range of the vehicle. Only a few high-speed electric motorcycles will be used, and most of the motorcycles are still mainly in series batteries.
To sum up:
Motorcycle battery series is conducive to improve the battery voltage, and then improve the power and endurance performance of the vehicle，if it is in parallel, it can only increase the capacity, but it cannot raise the voltage. Therefore, its power requirements will not be met, which will greatly reduce the performance of the vehicle. In addition, parallel batteries take longer to charge, so they do not apply. what do you think about that?