Fast Technology reported on January 5 that some gasoline vehicles can only add more than 95 gasoline due to the limitation of the engine compression ratio, but now there are electric vehicles in a similar situation.
Recently, Zhijie S7 started to be delivered, and some owners found that this car only supports fast charging piles above 750V (inclusive), saying "too pitted".
In response, the official assistant said that the Zhijie S7 system adopts an 800V high-voltage platform, and it is recommended to use a high-voltage DC charging pile above 750V for charging, and some 500V low-voltage DC charging piles, the car will prompt "The charging pile is not suitable and cannot be charged, please replace it with a high-voltage charging pile greater than or equal to 750V", and you need to try to replace other charging piles.
In response to this matter, the blogger "Zhang Kangkang KK" interpreted, he is also the owner of the Zhijie S7, and he has just mentioned his car.
He said that when he picked up the car, he paid special attention to it, and the charging port of this car was indeed clearly written, please use a charging pile above 750V for fast charging.
In other words, if you are unlucky and you may find a fast charging pile below 500V, then it will not be available, and this situation will be more likely in remote areas where the infrastructure is not perfect.
Except for Zhijie S7, most of the 800V/750V cars encounter 500V piles, or cars with rated voltage of more than 750V (NIO NT3.0, Ideal MEGA, Zhiji LS6) encounter 750 piles, which can be charged, but it will be slower, and the booster will be enabled at this time.
But Zhijie S7 is likely not equipped with this booster, so it cannot support the use of 500V fast charging piles.
According to the data released by Denza, from 2015 to 2021, 15% of public piles were 500V and below, and 85% were 700V and above, and according to the statistics of China Electricity Council, among the 255,000 DC piles in the first four operating ends in 2021, 500V accounted for 36%, and 64% were 750V and above.
That is to say, if you go out and find a charging pile, there is a 75% chance that you will find a 750V pile, which can be perfectly adapted, and this proportion will continue to rise in the future, because the old 500V piles are being retired one after another, and they will no longer be newly built.
For this explanation, netizens do not agree very much, some people say, simply put, it is the Zhijie S7 castrated the booster, so it is impossible to use the 500V fast charging pile;
There are also people who say that although the charging piles above 750V are rapidly popularizing, and even have reached 75%, there are still 25% of them who may not be able to charge the Zhijie S7, and only when the fast charging piles on the market are completely replaced with 750V and above, can you use this car without any worries.
Interestingly, Huawei officially announced that it will build 100,000 fully liquid-cooled ultra-fast charging piles across the country this year, and after the completion of this project, it will be more confident to go out with Zhijie S7.