Is fast charging bad for battery life?

Xiaobai Software  2022-05-05 17: 17  read 442 views

fast chargingis becoming a standard feature in smartphones, electric cars, laptops and other gadgets.It's convenient because it lets you power your device or car in less time than you traditionally wait.

But despitefast chargingImpressive, but does it have any negative impact on battery life?Are fast chargers bad for your phone?Let us analyze it in detail for you.

What is fast charging?


Fast charging is a feature that allows you to charge your device in a fraction of the time it normally takes.Whether your phone or other device supports fast charging comes down to the charging circuitry included.

Your device can only draw as much power as the charging circuit can handle.That's why connecting your device to a fast charging brick won't necessarily make it charge faster.Of course, there may be other reasons why your smartphone is charging slowly, and you need to consider those too.

Fast charging makes it easier to charge the battery every time you feel the need to lift.Given the increasing amount of time we spend with our devices and the difficulty of lasting a full day on a single charge, fast charging is more important than ever.

Next, we will use a smartphone as an example.In this regard, there are several fast charging standards on the market.Thankfully, most are cross-compatible.

What is fast charging?

Fast charging has become a valid marketing term for different electronic products.However, you usually bump into this term in smartphone marketing materials.

These materials are sometimes deceptive, tricking you into thinking your device supports fast charging, only to find out later that it doesn't.So, how many watts are considered fast charging?

Smartphone makers typically label anything over 10 watts as a fast charge rate.However, there is no industry standard for what fast charging speeds are.Higher numbers tend to charge faster.

Will fast charging damage the battery?


This problem is usually caused by the heat generated when high power bombards the device.As you probably already know, high temperatures are bad for your battery, especially the lithium-ion batteries that most smartphones use these days.That's why fast-charging systems reduce heat as much as possible while increasing output.

But can fast charging damage your device battery?

That's not the case, in fact, it's due to the way fast charging works.Fast-charging batteries have two stages of charging.The first stage is for them to absorb as much power as possible.Because the first stage is usually when the battery capacity is low or empty.

This explains why, in smartphone marketing materials, you'll see companies boasting that their fast chargers take a specific amount of time to charge the battery from zero to a certain capacity.

However, once the battery capacity reaches that quoted level, the charging speed is reduced to prevent stress and heat from compromising the battery's longevity.You've probably noticed that your phone charges up to a certain percentage faster, but takes longer to fill up the battery; here's why.

It's also worth noting that your phone may automatically turn off fast charging if your device's temperature exceeds a certain level.

How can cell phone companies mitigate the impact of fast charging?


Smartphone companies have also devised other ways to reduce the impact of the fast-charging phase on the battery by using a dual-battery design.This way, the two batteries share the high input load during the fast charging phase - preventing damage.

Another precaution is a different battery management software system.Smartphones have specialized management systems to oversee charging and prevent batteries from being damaged by high input power.Apple's optimized battery charging is a good example of this.

Basically, the effectiveness of your phone's battery management software determines whether or not fast charging will damage your battery.

The bottom line is that fast charging doesn't have a substantial impact on battery life.But the physics behind the technology means you shouldn't expect the battery to last longer than with a traditional "slow" charging brick.

But that's just one factor.Battery life depends on different factors.For example, Apple's support document describes its phone as follows:

"A normal battery is designed to retain up to 500% of its original capacity after 80 full charge cycles under normal conditions."

Should you worry about the effect of fast charging on your battery?

As mentioned above, the charge management system is responsible for protecting the battery from damage.Clearly, battery life is likely to suffer, but not to a degree that warrants serious concern.So, you shouldn't worry too much.

Now, hopefully your doubts about fast charging have now been cleared up.


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