Most technology manufacturers today equip Lithium-Ion for phones. This is a type of battery that is "evolved" to be more advanced than the old battery line with the ability to charge and discharge many times, is difficult to damage, is safer and smarter. However, if you use it incorrectly, it can still damage the battery as usual, no matter how "good" the battery is.
Improper battery charging causes the battery to degrade quickly. (Illustration photo)
Should I plug the charger into the wall outlet first or the phone first?
It seems like a normal action to fill the phone battery, you can do it any way you want, but many technology experts always advise that plugging in and unplugging a smartphone charger must be done correctly or it will damage the device.
To know whether it is better to plug the charger into the wall outlet or the phone first, users need to learn about surges or electric shocks. This is a state of instantaneous voltage exceeding the normal working voltage of the device. This type of electricity can create a state of rapid electrical impulses and is extremely dangerous if accidentally exposed.
That is, when the phone charger has an output of 5V/2A and when plugged into a power source, it can spike to 6V or higher. Although, in normal state, the output voltage is only 5V. These electric sparks, we cannot see with the naked eye. This leads to the Surge condition when charging the phone.
Although this situation rarely happens, it means that it cannot happen on your device. Users should pay attention to buy genuine chargers, they will be designed with additional overload protection circuits, anti-electric shock, so you do not need to worry about this problem. In this case, you can plug the charger into the power outlet first or the phone first.
In case of using an old charger or a third-party charger, a non-genuine charger, you should plug the charger into the power outlet first and then plug the cable into the device to charge to ensure avoiding electric shock. After the battery is full, you should unplug the charging cable first and then unplug the charger from the power source.
Harmful effects of charging phone battery incorrectly
Most users often have the habit of leaving the charger plugged directly into the socket after each charge. This not only wastes electricity but also causes the risk of fire. Especially when using some non-genuine chargers of unknown origin.
In addition, continuously plugging the charger into the power outlet will cause them to heat up, easily leading to short circuits and explosions. Therefore, after charging the phone battery, you should unplug the charger from the power outlet to ensure the safety of the device as well as those around you.
At the same time, during the battery charging process, the smartphone will charge through the charger transmitting energy via the charging cable. At this time, the phone charger acts as a transformer, moving from high voltage to low voltage (from 220V down to 5V, 9V, 12V, ...) and bringing direct current from the low voltage transformer to fully charge the battery system.
Therefore, in the entire charging process, plugging the charger into the power source first is considered the right step. Because there must be a voltage step-down device first for the phone to be fully charged.
An Nhi (Synthesis)
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