About PD power adapter, some secrets you do not kno

I believe that you must have charged your cell phone with a PD power adapter, and in recent years the topic of fast charging of cell phones has been very hot, and some low-priced cell phones support fast charging technology. If you can't beat it, you can join it, and it can be said that now it is, charging for five minutes and talking for two hours is no longer a dream, and fast charging seems to be realized with just a PD charger. But about fast charging, there are still some small secrets you don't know.

When those big and small cell phone manufacturers talk about fast charging, why do they never mention the battery life? Because no matter what kind of PD power adapter is used, it will affect the normal life of the battery, whether it is Qualcomm's QC3.0/QC4.0 or PE, PD fast charging, these fast charging technologies are nothing more than high-voltage small current and low-voltage high current, but these are interface technologies. Fast charging must ultimately use high current to realize, but high current charging is harmful to the battery.

Because when the current increases, a layer of semi-permeable film on the surface of the electrode negative electrode will have a certain degree of rupture, so that the electrode material and electrolyte react with each other, in addition to the temperature rise will also allow the battery internal side reaction to destroy the chemical substances on the battery, resulting in a reversible reduction in the capacity of the battery will continue to decrease. If you are using a PD power adapter to charge your cell phone, compared to charging with an ordinary charger, after a long time, you will feel the PD fast charging cell phone power consumption is much faster than ordinary to be, this is the battery capacity is reduced.

Although there are now some devices in the fast-charging phones equipped with batteries in the core material and design improvements, but this loss of battery is still difficult to avoid, only to improve the performance of the battery, so that it can withstand high charging rates. However, because of the current fast charging, fast-charging cell phones and PD power adapters have some agreement between the battery will try to protect the battery in fast charging mode. For example, when we use the PD power supply to fast charge the Apple we will find that when the phone charge to about 70%, the charging rate will be slowly reduced, which is also a means of protection for the battery. Although the fast charging technology will cause some wear and tear on the battery, but in general, the advantages outweigh the disadvantages, after all, our time is more valuable than the life of the battery, right?

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