00:00Have you ever noticed your phone battery was amazing when it was new, but after here it
00:04suddenly start dying super fast, like it is aging faster than you are.
00:07Let's talk about why this happens.
00:09Inside your smartphone, something called a lithium-ion battery.
00:12It sounds complicated but the basic idea is simple.
00:15Tiny particles called lithium ions move back and forth between two sides of the battery
00:19to store and reduce energy.
00:20Every time you charge your phone and then use it, these ions travel again.
00:24That is called a charge cycle.
00:26Now here is the problem.
00:27Every time this moment happens, the battery gets a little bit worn out.
00:31It is like bending a paper clip again and again.
00:33At first, nothing happens, but after many bends, it weakens.
00:37The same thing happens inside your battery.
00:39Over time, some of the lithium ions are stuck or react in base, they should not.
00:42This means fewer ions are available to store energy, so your battery cannot hold as much
00:47charge as before.
00:48That's why your phone doesn't dust as long.
00:51Another reason is something called a layer forming inside the battery.
00:54This layer builds up slowly during use.
00:56At first, it actually helps protect the battery, but as it grows thicker, it blocks a moment
01:01of leaping ions.
01:02So charging becomes less action and the battery loses capacity, and it doesn't stop here.
01:06Heat is one of the biggest enemies of your battery.
01:09When your phone gets hot like during gaming, fast charging or even being left in the sun,
01:13the chemical reactions inside speed up.
01:15Faster reactions might sound good, but they actually damage the battery faster and shorten its
01:19life.
01:20Even the way you use your phone matters.
01:21It helps charging your phone again and again throughout the day as a promote charge cycle.
01:25Most batteries are designed for only a few hundred full cycles before they start losing
01:30noticeable capacity.
01:31There is also something surprising.
01:33Your battery is aging even when you are not using it.
01:35Just sitting over time causes low chemical changes inside, which gradually reduce its performance.
01:40And if you use fast charging a lot, that can make things worse.
01:43It pushes energy into the battery totally, which can create extra stress and heat, speeding up the damage.
01:48So when you combine all these things, charging cycles, heat, chemical reactions and time,
01:52it becomes clear while lithium-ion batteries degrade so fast.
01:55The truth is, it is not because your phone is bad or companies are trying to trick you.
02:00It is simply how this type of battery works.
02:02Even though lithium-ion batteries are powerful and lightweight, they are not perfect.
02:05But here is the good news.
02:07You can slow down this process, keeping your phone cool, avoiding extreme.
02:10So next time your phone battery works from 20% to 5% in what feels like seconds,
02:15you will know exactly what is going on inside.
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