"New Energy Trend" public number report: As we all know, electric vehicles need to be charged. Although the frequency is different, generally may be 2-3 days a day, and even some owners have to charge the electric vehicle every day, but on the question of when to unplug the power supply, many car owners are pulled out after the charger turns green, but in fact, this is not right, and it will inevitably cause damage to the battery over time.
The fact that the electric vehicle charger turns green does not necessarily mean that the battery is full
Many people see the electric vehicle charger become a green light, they think that the battery of the electric vehicle is full, will unplug the power plug, in fact, this time does not necessarily mean that the battery has been full.
Sometimes, if the charger is damaged or there is a problem with the quality of the battery, and the owner does not know, after inserting the charger into the power supply, it will find that the charger will become a green light for a while, but in fact, the charge is not much, and there will be insufficient power in a while, then it is necessary to repair the charger or battery in time.
There is also a situation, the use of electric vehicle charger for the normal charging of the battery, charged for 6-8 hours, found that the charger's red light has become a green light, but the charger at this time slightly hot, while the charger's fan is still gently rotating, then the charger although it becomes a green light, the charging time is long enough, but it is not fully charged, and the charger can not be unplugged.
The process of changing the indicator light during charging of the charger
To determine the correct time to unplug the charger power supply, you need to first understand the entire charging process of the charger, as well as the changes in the charger indicator during charging.
At present, the electric vehicle charger we use is generally a three-stage charger, which means that the charging process is divided into three stages, namely the constant current stage, the constant voltage stage and the floating stage.
In the constant current charging stage, to constant current for the battery charging, the voltage continues to rise, when the battery voltage reaches the highest value of the charging voltage, the charger is converted to constant voltage mode charging, this time the current is constantly decreasing, continue to charge the battery, in the constant current mode and constant voltage mode charging process, the electric vehicle charger indicator is red, when the charge is charged to the battery to about 90%, the electric vehicle charger turns to the float charge stage, at this stage, the charger uses a weak current for the battery to continue charging, However, during the floating phase, the charger's indicator light switches to green.
When to pull
go out
The most suitable?
In order to be able to charge more power for the battery, in the charging process, the floating charge stage is indispensable, so that not only for the battery to charge more power, but also can play a role in maintaining the battery, but it is not the longer the float charge time, the better, under normal circumstances, in the summer, the charger becomes a green light, and then continue to float for the battery for about 30 minutes and then unplug the power supply is the most appropriate, in the winter, the charger becomes a green light, you can continue to float the battery for about 1 to 2 hours, and then unplug the power supply is more appropriate.
summary
Charging the battery of the electric vehicle seems simple, but the small details have been asked by the university, many years ago there have been people who have constantly emphasized that most of the batteries are not bad but charged bad, people have gradually realized the necessity of choosing a high-quality charger and the impact of the charging environment, but the timing of the pullout has been ignored by most people.
Pull early or pull late, the damage is the battery life, the damage is their own wallet, must pay attention to!