Why does the charger plug turn black?

Because of the high-pressure sparking phenomenon caused by poor contact, pressing and sparking will oxidize the metal layer of the plug, leaving a layer of black substance after oxidation, which is oxidation.

Oxidation is also called oxidation reaction. During the reaction of organic matter, the action of introducing or removing hydrogen from organic matter is called oxidation; the action of introducing hydrogen or losing oxygen is called reduction. Substances react slowly with oxygen to slowly generate heat without luminescence, which is called slow oxidation, such as metal corrosion and biological respiration. Vigorous luminous and heat-generating oxidation is called combustion.

Precautions for charging with mobile phone charger

1. Don’t make calls while charging.

In the charging state, the insulation between the parts with dangerous voltage and the accessible conductive parts is broken down or the contact current is too large, which can easily cause electric shock to the user.

The original chargers are like a small power supply bureau with over-voltage protection circuits and transformer devices, which can convert high voltage to low voltage and convert AC power to DC power.

2. Qualified quality is the key.

When buying a charger, be sure to choose qualified products from regular manufacturers, and don’t try to buy unqualified products from unqualified manufacturers.

3. Pay attention to ventilation and heat dissipation.

Voltage of the phone is higher than the standby state when charging, if you use an unqualified battery or charger, and the charging environment is poor. Such as high temperature, humidity, etc., accidents may occur.

How to remove the black substance on charger plug?

1. Alcohol

If the charger plug turns black, you can drop a small amount of alcohol on the plug, and then wipe it repeatedly with a clean cloth to remove the black substance.

2. Toothpick

If the charger plug turns black because of debris, you can use a toothpick to clean the black things.

3. Socket problem

If the power strip has been used for a long time, and the phenomenon of aging appears, it will also cause the charger plug to turn black, so you can replace it with another power strip.

4. Wipe with towel

After using the charger, it is best to wipe it with a towel or paper towel to prevent the charger plug from appearing black substance.

5. Don’t keep the charger plugged in

Some people will keep the charger plugged in to save trouble or for convenience, but after a long period of time, the plug of the charger will turn black, so it is best not to keep plugging it in.

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