Why Your Phone Battery Gets Low
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Introduction
Phone Battery Life
Typing practice
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Text to type: Your phone battery life can change from day to day. The battery gets low faster when the phone uses more energy. You will learn what uses that energy and four simple ways to save it.
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Before you begin
Think First
How many hours does your phone battery usually last in one day?
Does your phone get hot sometimes? When does this happen?
Do you charge your phone at night while you sleep?
What Is Inside Your Phone BatteryReading
What Is Inside Your Phone Battery
Typing practice
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Text to type: Many modern phones use a rechargeable lithium-ion battery. It stores energy for the phone. Each time you charge and use the battery, it changes a little. After many months or years, it cannot hold as much energy as before. Apple calls this chemical ageing. It is a normal part of battery life.
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Check your understanding
Check: What Is Inside
1. What happens to a rechargeable phone battery over time?
Sample answer
It slowly changes and cannot hold as much energy as before.
Heat Is Bad for Your BatteryReading
Heat Is Bad for Your Battery
Typing practice
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Text to type: Heat is hard on a phone battery. A hot battery can lose power quickly, and heat can make it age faster. Do not leave your phone in a hot car or in strong sun. If the phone gets very hot, move it to a cooler place and let it cool.
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Check your understanding
Check: Heat and Battery
1. What should you do when your phone gets very hot?
Sample answer
Move it to a cooler place and let it cool.
Reading
Screen Brightness and Apps Use Power
Typing practice
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Text to type: The screen and busy apps can use a lot of energy. A bright screen needs more power. Video, maps, and games can also use power quickly. Lower the screen brightness and let the screen turn off sooner. Your battery settings can show which apps use the most power.
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Check: Screen and Apps
1. Name two ways to use less battery power.
Sample answer
You can lower the screen brightness and let the screen turn off sooner. You can also check which apps use the most power.
Good Charging HabitsReading
Good Charging Habits
Typing practice
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Text to type: You can charge your phone when you need to. You do not have to wait until the battery is at zero, and you do not have to charge it to 100 percent every time. Use the charger made for your phone or another charger that the maker says is safe to use. When you need more time, turn on Battery Saver or Low Power Mode.
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Check: Charging Habits
1. Must you wait until the battery is at zero before you charge your phone?
Sample answer
No. You can charge your phone when you need to.
What you can do now
Final Reflection
Think about your phone today. Which one will you try: use a dimmer screen, let the screen turn off sooner, keep the phone cool, or use Battery Saver? Why?
Learning cards
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Why Your Phone Battery Gets Low
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Listening
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Reading
What Is Inside Your Phone Battery
Reading
Heat Is Bad for Your Battery
Reading
Screen Brightness and Apps Use Power
Reading
Good Charging Habits
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