What are the pros and cons of replacing batteries in electric vehicles to upgrade their range?

Battery life is related to the car-using experience. In order to alleviate anxiety about battery life, many methods and ways to improve vehicle battery life have emerged. Among them, increasing vehicle battery life by replacing batteries is one of the solutions to the problem of vehicle battery life. But for electric vehicles, what are the pros and cons of upgrading battery life by replacing batteries?

From the perspective of the disadvantages of replacing batteries to achieve longer battery life, there will be the following impacts. Take the vehicle's battery as an example. The original vehicle's battery, including the vehicle's BMS, is designed according to its size and capacity. Different types of batteries have different characteristics and require corresponding management systems. There are big differences in temperature management, power control, etc. If you want to upgrade, you have to replace the entire system, which increases the cost and is not economical.

Replacing the battery to upgrade the battery life means that the battery capacity will increase, which will face the problem of battery monitoring for the BMS. Since the new battery pack itself is a high-voltage component, energy management becomes a major problem. Not upgrading the BMS will also pose certain safety risks. Secondly, replacing the battery means that the weight of the battery will also increase. For the vehicle, replacing the battery to upgrade the battery life and adding a battery pack will also increase the weight of the vehicle. From the perspective of the vehicle's energy consumption, it is not environmentally friendly and also reduces the driving experience of the vehicle.

Finally, from the perspective of cost, even if the new battery pack can achieve an upgrade in battery life and can be used in vehicles, is the price of replacing the battery currently within an acceptable range? In summary, upgrading the battery life by replacing the battery is not an easy task, after all, it involves many aspects.