Can charging your phone overnight cause it to explode? If you still hold the belief that charging your phone overnight is harmful, you should keep yourself updated because this has been explained by experts through the new technological advancements in batteries. For older battery generations, the theory might be true, but it is a huge misconception compared to the batteries equipped in modern smartphones.
Specifically, charging your phone overnight does not cause the battery to malfunction or swell, as many people think. Instead, it is the charging cycles and the way the battery is used that affect the lifespan of today’s batteries.
Can charging your phone overnight cause it to explode? (Image: illustration)
Accordingly, each charging cycle represents a time when the battery is charged to 100%. Therefore, it does not mean that you have to use up the battery completely and then charge it to full again in order to maintain the battery’s lifespan. Conversely, one charging cycle can be divided into two separate charging sessions, each session increasing the battery by 50% (or any desired amount, as long as the total battery capacity summed up equals 100%, it will be considered one charging cycle).
In this way, after about 400 to 500 charging cycles, the battery will show signs of degradation, which is a normal occurrence because nothing lasts forever.
Therefore, charging your phone overnight is not related to the above charging cycle calculation. Of course, the phone will still consume the battery gradually, and then immediately charge it again, but that amount is not significant enough to significantly degrade the battery life.
On the other hand, nowadays, most phones have the feature of controlling the power received through the charging cable, in order to efficiently minimize the risks that users are often concerned about.
Although the current level of technology brings many advantages to battery charging, there is still one factor that makes charging your phone overnight dangerous, and that is temperature.
Currently, the widely used battery type in most smartphones is Lithium-ion, and they are extremely sensitive to temperature. If the temperature is too high, it can cause the phone to catch fire or explode, which is a well-acknowledged fact. If the temperature drops too low, it will cause the battery to degrade quickly.
Charging your phone overnight can increase the temperature of the phone because of the continuous energy dissipation from the current flow. In addition, some other objective factors combined can potentially increase the dangers, such as the phone being squeezed by a pillow or an excessively tight case…which prevents the phone from dissipating heat quickly.
Furthermore, replacing the battery with an unknown origin and poor quality is also a major reason for the durability of the phone and your safety. The article has answered your question about whether charging your phone overnight can cause an explosion. Hopefully, the above information is useful to you, and don’t forget to share it with your friends and family members so that they can use their phones safely.
According to VTC News
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