-Can lead-acid electric vehicles be converted into lithium batteries? Let me tell you, it's not as simple as you think!

Can lead-acid electric vehicles be converted into lithium batteries? Let me tell you, it's not as simple as you think!
author:enerbyte source:本站 click112 Release date: 2024-05-29 08:38:23
abstract:
Let's take a look at how to convert lead-acid electric vehicles into lithium batteries. Taking a 48V lead-acid battery as an example, the first step is to open the four corner screws of the battery and carefully open the top cover. It can be seen that there are four 12V lead-acid batteries insid...

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Let's take a look at how to convert lead-acid electric vehicles into lithium batteries. Taking a 48V lead-acid battery as an example, the first step is to open the four corner screws of the battery and carefully open the top cover. It can be seen that there are four 12V lead-acid batteries inside. The second step is to remember the battery circuit clearly, and then use an electric soldering iron to remove the wires from the battery. During operation, be careful to prevent short circuits in the battery. Step three, then remove all the old batteries and put the lithium battery in. When installing the battery, there are some protruding small plastics inside that separate the original lead-acid battery. This must be removed, otherwise the new battery will be worn out in the future. Step 4, connect the terminals on the battery and wrap them with electrical tape.

However, it should be noted that when replacing the lithium battery with the original lead-acid battery, it must match the voltage of the original vehicle battery, increase the capacity, and have a longer battery life. Even with the same capacity, lithium batteries have a longer range and lifespan. Secondly, it should be noted that the original charger cannot charge lithium batteries and requires separate purchase or customization of a dedicated charger.

Of course, some people may ask whether the controller and motor need to be replaced? Replacing lithium batteries, as long as the voltage is the same, having a larger capacity is actually a good thing. The capacity of an electric vehicle can be increased arbitrarily, as long as the voltage remains unchanged, the impact of the motor and controller is not significant. Of course, there is also a problem. If there is a quality issue with the lithium battery itself, it is likely to burn out the controller.

Since lithium batteries have so many advantages, why not recommend replacing lead-acid batteries with lithium batteries?

Firstly, the production cost of lithium batteries is high, with expensive equipment and labor costs accounting for about 40% of the production cost. The price is approximately three times that of lead-acid batteries. The cost-effectiveness brought by its triple price is not high, giving people a feeling of extravagance and unreality, and lithium batteries are difficult to recycle, with low reuse rates.

Secondly, due to the small size of lithium batteries, multiple lithium batteries are connected in series during assembly. During transportation and use, it may cause a disconnection or virtual soldering of a certain solder joint, which is a common problem when connecting lithium batteries.

Thirdly, the high current discharge characteristics of lithium-ion batteries themselves are their shortcomings. Considering frequent starts on congested roads, the battery life will also be greatly reduced.

The most important reason is that lithium batteries pose a safety hazard of fire and explosion, and no one would be willing to buy a "time bomb" and put it under their body. Especially when consumers search for low-quality lithium batteries online without their knowledge, the poor sealing conditions in electric vehicles can easily lead to safety hazards due to moisture and poor contact. Perhaps some people may say that with the rapid development of lithium battery technology, such problems will not occur, but no one can guarantee that such problems will not occur.

Although lithium-ion batteries have the same weight and volume as lead-acid batteries, they generally store about three times more capacitance than lead-acid batteries. However, for an electric vehicle as a means of transportation, its effectiveness is actually limited, as many lead-acid batteries have significantly improved their endurance, reducing the gap between lithium batteries and lead-acid batteries. In addition, with the promulgation of new national standards and regulations such as a speed limit of 25km/h, consumers will not be too strict in their pursuit of electric vehicles, and it is believed that not many people are willing to spend several times more money to pay for them.

In short, both safety and cost issues of lithium batteries are not conducive to their promotion. Based on current technology, lead-acid batteries are still the main type. And want to convert lead-acid electric vehicles into lithium batteries? I suggest never to try it out. Apart from safety, during the implementation of the new national standard, modification may be defined as exceeding the standard. If you are really interested in lithium batteries, it is recommended to choose a regular lithium electric vehicle.


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