Mobile phone batteries don t like 100 saturation, are you charging them right?

Mondo Digital Updated on 2024-03-05

As an indispensable part of modern people's daily life, the performance and life of mobile phone batteries directly affect our use experience. However, have you noticed that mobile phone batteries don't seem to like to be at 100% saturation for long periods of time? What kind of science is behind this? This article will take you along the way to charge your mobile phone battery to help you better protect your mobile phone battery and extend its service life.

First of all, we need to understand the basic working principle of a mobile phone battery. Most modern smartphones use lithium-ion batteries, which have the advantages of high energy density, low self-discharge rate, and no memory effect, so they are widely used in various portable electronic devices. However, lithium-ion batteries also have their inherent drawbacks, such as the high requirements for the charging environment, which can be damaged by overcharging and discharging.

When we charge the phone battery to 100%, the lithium ions inside the battery have reached the maximum capacity. At this point, if charging continues, lithium ions may begin to form metallic lithium inside the battery, a process known as lithium dendrite growth. The growth of lithium dendrites may puncture the separator of the battery, causing a short circuit inside the battery, which can cause a safety incident. Therefore, in order to protect the safety of the battery, modern lithium-ion batteries will be equipped with a protection circuit, when the battery power reaches 100%, the protection circuit will automatically cut off the charging current to prevent overcharging.

However, even with the presence of protection circuitry, it is not wise to keep the phone's battery 100% saturated for a long time. Because during the charging and discharging process of lithium-ion batteries, lithium ions migrate between the positive and negative electrodes, which will cause certain damage to the positive and negative electrode materials. This damage is inevitable, but excessive charging and discharging can accelerate this process, resulting in a gradual decrease in battery capacity and affecting battery life.

In addition, keeping the phone battery 100% saturated for a long time may also affect the cycle life of the battery. The cycle life of a battery refers to the number of times a battery is fully charged to full discharge, and it is one of the important indicators to measure the performance of a battery. Studies have shown that lithium-ion batteries have the longest cycle life when charged to 80%-90%. Therefore, in order to prolong the cycle life of the battery, we can consider controlling the battery power in the range of 80%-90%.

So, how do you properly charge your phone battery? First of all, we should avoid leaving the phone battery at 100% saturation for a long time. When the phone is fully charged, you can unplug the charger and let the battery naturally discharge to 80%-90% of the charge, and then charge it. Secondly, we should avoid frequent full discharge of the battery to a state of 0%. When the battery level of the mobile phone is less than 20%, it should be charged in time to avoid damage to the battery due to excessive discharge.

In addition, there are some other charging tips that can help us better protect our phone battery. For example, try to avoid charging in a high or low temperature environment, because extreme temperatures will affect the charging and discharging performance of the battery; Use regular brand chargers and data cables to avoid damage to the battery caused by inferior products; Clean up the background apps on your phone regularly to avoid excessive battery consumption caused by too many apps running at the same time.

In conclusion, mobile phone batteries don't like to be 100% saturated for long periods of time. In order to protect our mobile phone battery and prolong its lifespan, we should follow the correct charging method and avoid overcharging and discharging. At the same time, we should also pay attention to maintaining good charging habits, avoid charging in high or low temperature environments, and use regular brand chargers and data cables. Only in this way can we make our mobile phone batteries better serve our lives and provide a steady stream of power for our daily work and entertainment.

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