There are several main reasons below:
Why do electric vehicles use AC charging piles?
First, the most important thing is that the DC power output by the DC charging pile is very large, hundreds of amps. This has a great impact on the battery life and may lead to a significant reduction in battery life. At present, the battery itself is the development of electric vehicles (even including other Devices, such as mobile phones and other electronic products). In other words, the current battery technology is not perfect, and if the battery life is often lost, it is not economical enough.
2. The AC charger is convenient. It is installed at parking lot or charging station. The input side only needs to be connected from the power grid. The output is also AC and does not require other equipment such as a rectifier. The structure is simple.
3. Extending from the battery, current electric cars are not suitable for long-distance driving, so in most cases electric cars can be charged slowly at work or at home at night.
4. The power of the AC charging pile is small, so the impact of electric vehicle charging on the power grid is also small. If the scale of electric vehicles is further increased in the future, if high-power DC charging is performed at the same time, the pressure on the grid will increase. It is also an issue that must be considered in the future.
