Is it a hazard that the mobile phone charger will not be pulled out?

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Is it a hazard that the mobile phone charger will not be pulled out?

Do not unplug the power supply after it is fully charged, which will cause certain harm to the battery.

Because this will keep the battery fully charged, although it will not explode, it will speed up the battery capacity (the total battery power after full charge), and the battery capacity reduction is irreversible.

First, several common mistakes about mobile phone charging:

1, the new battery needs several full charge and discharge to activate

Early nickel-cadmium and nickel-metal hydride batteries required similar "activation", and these batteries produced a "memory effect". Today's mobile phone batteries are lithium batteries that do not need to be activated.

Positive solution: Most of the batteries used in today's smartphones and laptops are lithium-ion batteries. Its initialization process is done at the time of manufacture, so no activation is required when starting to use.

2, reduce the number of charging can extend battery life

Generally, the life of a lithium-ion battery can reach several hundred charge-discharge cycles. The charge-discharge cycle here refers to the process of charging the battery after it is used up, instead of plugging in the charger and then unplugging it once. Lithium batteries have no memory effect and can be charged at any time. In order to reduce the number of times of charging, the battery is deliberately filled with light and does not extend the battery life, but has a negative impact on the battery life. Positive solution: In fact, lithium battery charging pays attention to "less meals", frequent shallow charging and discharging will help to extend its life.

3, overcharging will cause the battery to explode

There are rumors that the phone will cause an explosion when the phone is charging. Experts say that this argument is untenable. If there is such a danger, the product will set up a program that does not access the phone when charging.

Positive solution: Lithium batteries generally have safety protection circuits and a variety of safety devices to ensure that the battery circuit is automatically cut off during excessive charge and discharge and short circuit. Therefore, unless there is a quality problem, the battery will not explode due to long-term charging. From a safety point of view, do not cover anything on the battery when charging, and do not put it on the bed to avoid a fire.