I. Can the portable small fan be used while charging?
In the case of hot weather, many friends prefer to use small portable electric fans, which use usb The way of charging, you can take it with you after it is fully charged, and it will keep you cooler when you commute, so can this usb fan be used while charging?
Generally speaking, the small usb fan can be used while charging, but it is not recommended to use the small fan without quality assurance. If the small fan is used improperly or the quality is not good enough, it is easy to cause circuit failure, and even cause the fan to explode.
In addition, the battery of the rechargeable small fan is a lithium battery or a rechargeable battery, most of which are required to be fully charged at one time before use, so as to ensure that the battery life can be extended. If you want to use it longer, It is not recommended to use while charging, after all, charging and discharging will damage the battery more.
Second, the small rechargeable fan can only be used when it is plugged in.
Generally, the rechargeable small fan can be used without power after it is fully charged. If it can only be used when it is plugged in, it means that the small fan is faulty. The possible reasons are:
1. Because the power adapter may be faulty, the power cannot be sent to the small fan.
2. The connection between the charging cable and the small fan is poor. In many cases, the cable and the small fan interface are bent, resulting in poor contact.
3. The failure of the power board itself, which is basically the failure of the diode board of the rectifier circuit.
4. There is an open circuit between the charging socket and the rectifier diode board.
5. The battery inside the small fan is damaged.
Third, can the usb fan be fully charged?
Not necessarily.
Usb fans now generally use lithium batteries, which are similar to mobile phone batteries. They have a memory function. They only need to be fully charged when they are used for the first time. They can be used normally regardless of whether they are fully charged or not. Will not affect the service life.
