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When it comes to electric cars, most people can tell a few brands and know how to ride electric cars, but when it comes to charging electric cars, many people only know how to see red and green lights. In real life, there is a problem that has always troubled many car owners, that is, should we "turn on the power supply first" or "plug the battery first" to charge an electric car? Let’s talk about it to the owners who don’t understand it.
What is the difference between "Power first" and "Plug the battery first"?
"Power first" and "Put the battery first" mean that when charging an electric vehicle with a charger, you should plug the charger into the socket first, or should you plug the charger into the electric vehicle battery first. Is there any order between these two?
First power supply:
First power supply is to keep the charger in a working state, and then plug in the battery. This operating sequence can easily lead to a phenomenon, that is, "sparks" will appear at the interface. The reason for this phenomenon is also very simple, that is, the charger is powered on in advance, and there will be a large current at the moment of contact, resulting in sparks. If this is often the case, it will also cause some damage to the battery.
Of course, there is another situation, because most electric vehicles use switch chargers nowadays. The biggest feature is that there are three charging processes, among which the first two stages are constant voltage and constant current charging . If power is turned on first, it will cause the charger to misjudgment, which will cause the battery to be unfulfilled and the green light will be on. When you actually ride, you will quickly lose power when you twist it.
Insert the battery first:
said that it is possible to have a "spark" when opening the power supply first. Many car owners have also encountered it when actually charging. In order to avoid accidents, most people will choose to plug in the battery first and then turn on the power, so that there will be no superficial danger. So is this not harmful to the battery? My answer is naturally no.
Now chargers have many functions, such as some have the "voltage stabilization" function. Literally speaking, they can stabilize the voltage and allow the charger to output smoothly, but they need to power on and pre-start first. If the battery is plugged in first and then powered on, the charger will not activate this function, which will cause too much voltage and current to be too high at the moment of powering on, which will have a certain impact on the inside of the battery. In the long run, the battery may be charged and the battery life and service life will be shortened accordingly.
Which one is more harmful to the battery, first opening or plugging in?
mentioned above the impact of two orders on the battery, so if there are car owners, they will be confused. This is harmful and that is dangerous. So don’t you need to charge an electric car? Of course not. Although both orders have an impact, they are still not the same.
At the beginning, it was also said that most electric vehicles now use switch chargers, and some also have some voltage stabilization functions, which is to turn on and start up first so that the current can output smoothly. Therefore, generally means , which should "turn on the power first, then plug in the battery", so that the current can be output smoothly from the battery. As for the "fire" phenomenon mentioned earlier, it only happened when the technology was immature in the past, or when using inferior chargers, but it is generally not like this now.
There is a sequence when charging, and there is also a sequence when unplugging the plug. It is best to unplug the power supply first and then the battery end after full charge. Of course, if you don’t follow this order, it won’t have a big impact, I just suggest it.
learn charging skills. Electric cars can be used for 2 more years
. What is mentioned above is a problem of charging sequence. There are also many wrong charging methods in real life, and many car owners often do it. Let me briefly talk about one aspect. If it can be corrected, the electric car battery can be used for 2 more years.
lead acid battery has an electrolyte inside, and electrolyte is dilute sulfuric acid , which consists of water and sulfuric acid. If the internal temperature of the battery increases, the evaporation rate of water in the electrolyte will accelerate, resulting in a lack of water in the battery and the risk of bulging. There are many reasons for further intensification of internal temperature. The most common ones are that is charged for a long time and is charged immediately after riding the bike.
Battery charge and discharge will generate temperature. If you charge for a long time, the temperature will continue to rise. If you charge immediately after riding the bike, the internal temperature of the battery will also rise further. So if car owners can reduce these two behaviors, the battery life will be improved.
talks about
. There are a lot of questions and techniques about charging electric vehicles. Although they are very small things, they are really a big deal for batteries. If you can pay a little attention, the electric vehicle battery will be used for a longer time, and at least you don’t need to replace the battery frequently.
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