Name: Why Do iPhone Batteries Drain So Fast? | WSJ（Why Do iPhone Batteries Drain So Fast? | WSJ）
Uploaded: 2023-10-28T02:08:39.000Z
Duration: 7 min 20 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

様態の副詞

and we can get started on the battery replacement.

- Every iPhone battery is going to expire.

had depleted faster than my previous iPhones.

- [Reporter] Wall Street Journalist Joanna Stern

- And I shared some hidden numbers about its battery health.

As of today, as the battery hits 494 charge cycles,

And why did this battery deplete so fast in just a year?

I found the answers to all of that and more.

as a lithium ion battery that lasts forever.

So Apple lets you know just how healthy your battery is

Go to Settings, Battery, Battery Health, and Charging.

That's a measure of the battery capacity relative

the battery doesn't hold a charge as long.

into the low 80% range that you start to worry.

a normal battery is designed to retain up to 80%

of its original capacity at 500 complete charge cycles

Obviously, I got a bicycle to explain cycles.

Okay, let's pretend this wheel is your battery.

You complete one charge cycle when the battery goes

But you don't complete a cycle every time you charge.

you will have discharged a total of 100%.

So yes, it could take multiple days to complete one cycle.

the more that battery capacity percentage is gonna go down.

And yes, the battery will drain faster when you use it.

How do you find out the number of charge cycles

Well, the new iPhone 15 models actually show it.

you can download this software called coconutBattery

When you plug in your phone, it will show the cycle count,

which brings me back to my iPhone 14 Pro.

which makes me seem like a total phone addict,

which after two years of use had 652 charging cycles

Some app or some part of iOS was causing the battery

Thus, I was charging it more, so more cycle counts happened.

but heat is the number one enemy of batteries.

- Oh no, it's smoking. - Okay, yeah, it is.

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Why Do iPhone Batteries Drain So Fast? | WSJ（Why Do iPhone Batteries Drain So Fast? | WSJ）

pretend

multiple

genuine

basically