-Will unplugging an iPhone without fully charging it cause damage to the battery?

Will unplugging an iPhone without fully charging it cause damage to the battery?
author:enerbyte source:本站 click126 Release date: 2024-06-12 10:03:59
abstract:
No, Apple has lithium batteries, and most phones have lithium batteries. The phone can be charged as needed, as long as it is not overcharged or discharged, it will not damage the battery. Let me tell you a few misconceptions about charging:What is the memory effect of batteries?The generation of me...

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No, Apple has lithium batteries, and most phones have lithium batteries. The phone can be charged as needed, as long as it is not overcharged or discharged, it will not damage the battery. Let me tell you a few misconceptions about charging:

What is the memory effect of batteries?

The generation of memory effect is a type of effect in which the contents of a battery crystallize during its use. It usually only occurs on nickel cadmium batteries and nickel hydrogen batteries, while lithium batteries do not have to worry about this phenomenon at all.

The reason for the occurrence of battery memory effect is precisely due to the incomplete repeated partial charging and discharging of the battery, that is, charging it before it is fully charged. This action will temporarily reduce the capacity of the battery.

Compared to nickel hydrogen batteries, lithium batteries have no memory effect and are lighter in weight. They can charge and discharge up to about 500 times, especially the recently developed Li Polymer lithium polymer battery, which is not only smaller in size but also not limited by the general cylindrical or square shape of batteries, and is lighter in weight.

Therefore, lithium batteries are more suitable for use on smartphones than nickel hydrogen batteries.

So, when charging smartphones, including Apple phones, do not fully charge or run out at once. Instead, charge as you go, and pay attention to the temperature of the charging environment to protect the battery.

Misconception 1: Keeping the charger plugged in can damage the battery

Many people believe that charging overnight can damage the phone battery, but in reality, this is not the case. Currently, mainstream smartphones are equipped with smart ICs that can automatically stop charging when fully charged.

Misconception 2: Charging only when the phone runs out of battery

This theory applies to early nickel hydrogen batteries, which are currently not required for standard lithium batteries on mobile phones. Nickel hydrogen batteries need to be charged after complete discharge because they have a memory effect, while lithium batteries do not have this problem, so they can be charged at any time.

Misconception 3: The battery will be damaged as the number of charges increases

Previously, it was widely believed that the lithium ions in lithium-ion batteries would lose their vitality as the number of charges increased, leading to the end of battery life. However, Apple explained that the lifespan of lithium-ion batteries depends on the charging cycle rather than the number of charges. Simply put, for example, if you charge your phone to 50%, then charge it again to 50% after running out, this is the complete charging and discharging cycle.

Misconception 4: Do not use your phone while charging

Although there have been cases where users died from electric shock while charging their phones, in reality, this is not a problem with the phone or battery technology. This situation can only occur when a charging phone is used in the sink or bathtub, or when a cheap and unsecured counterfeit charger is used. Authentic mobile phones and chargers all have current protection measures, and the maximum voltage is far lower than the maximum voltage that the human body can withstand.

Misconception 5: Third party batteries and chargers are not safe

In fact, this viewpoint has some truth, but it is not absolute. Mobile phone manufacturers recommend users to purchase original accessories to ensure that no accidents occur. Third party batteries and chargers that have been certified by manufacturers are basically big brands and rarely encounter safety issues. Only those unbranded and cheap counterfeit batteries and chargers are without safety guarantees.

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IPhone X paired with original 5W charger to see how the phone charges

Firstly, it can be seen that when the battery level of the iPhone X is less than 85%, in order to achieve maximum charging speed, the power management chip allows the charger to run at a full power of 5W. After the battery level reaches 85%, in order to extend battery life, the phone gradually enters trickle charging mode, and the power gradually decreases. Finally, the battery level reaches 100%, and the power is close to 0. At this time, the charging circuit is cut off by the power chip.

So unplugging and reusing the battery before it is fully charged will not cause any damage to the battery. However, excessive charging and discharging can cause significant damage to the battery. Overcharging refers to continuing to charge when your phone is fully charged, while over discharging refers to using up all of your phone's battery before charging. However, nowadays, when the phone is automatically charged, it will power off, which will prevent the phone from continuing to charge, which is still good.

For lithium-ion batteries, they can be easily used. Some of the charging issues we often worry about can be solved by lithium-ion batteries or mobile phones themselves, such as overcharging: Nowadays, mobile phones have circuit protection, and once fully charged, they will automatically disconnect, so there is no need to worry about overcharging.


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