Mobile phone charger method

    Theoretically, the smaller the charging current is, the better the battery is. The time is too long for the user to be unhumanized. Therefore, the general standard is 0.1-0.2C during charging, where C is the rated capacity of the battery. Taking a battery of 10000 mAh capacity as an example, the charging current is 2000 mA. According to theory, it can be fully charged in 5 hours, and the capacity mAh=current Ma* time h. But in fact, in order to protect the battery, the battery charge also scores three stages of constant current charging, constant voltage charging and trickle charging. Therefore, the actual filling time is longer than 5 hours or slightly longer than 6 hours, and the battery charging time is calculated. : The battery capacity is divided by the charging current, multiplied by a factor of 1.2-1.1, and the time unit is hour.

    Maybe you don't understand why you should use constant voltage charging, trickle charging and constant current charging to charge the battery. Isn't it a waste of time? The following Senshu strong power adapter manufacturers to introduce these three charging stages, everyone will understand the mystery.

    1. Constant voltage charging has different charging voltages according to different voltage levels. Therefore, it is not acceptable to select the charger according to the current. For example, a battery charger charges a 5V battery and cannot charge a 12V or 6V battery.

    2. Trickle charging is also different depending on the battery. It is also called floating current. Its size is closely related to battery capacity. For example, the normal charging current <constant current charging current> of the 10000mAh battery as the example may not be as large as the floating current of a larger capacity battery. The excessive constant current charging current is most likely to cause the battery to overcharge, thus affecting the battery. The service life can even damage the battery. Because the protection of the battery is basically two: don't overcharge, don't over-consume. Violation of these two items, the battery is not damaged immediately may also lead to capacity decline.

    3. Constant current charging is the charging phase in which the charging current remains unchanged, and the charging voltage rises approximately linearly. If the current is directly charged with 0.1-0.2C, even if there is no other accident, the battery will be shortened due to excessive charging and the like. Life, so this is why constant current charging begins with the charging current remaining constant, and the charging voltage rises approximately linearly, in fact, in order to extend and protect the battery life.