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Primary cell facts for kids

Kids Encyclopedia Facts
Batteries comparison 4,5 D C AA AAA AAAA A23 9V CR2032 LR44 matchstick-1
This picture shows many common sizes of primary cells. You can see different shapes and sizes, like AA, AAA, and 9V batteries.

A primary cell is a special type of battery that you can only use once. Unlike some other batteries, it cannot be recharged after its power runs out. Once all the energy inside is used up, the battery stops working. Then, you have to throw it away because it can no longer make electricity. Primary cells are often found in small appliances around your home. Things like TV remote controls, flashlights, and smoke detectors often use these one-time-use batteries.

Why Use One-Time Batteries?

Primary cells have some good points that make them popular.

  • They usually cost less money to buy than rechargeable batteries.
  • They are easier to make in factories.
  • They can last a long time on a shelf before you even use them. This is called their "shelf life."
  • You can easily find them in almost any store.

Drawbacks of Primary Cells

Even though they are handy, primary cells also have some downsides.

  • They create a lot of waste because you throw them away after one use. This can be bad for the environment.
  • Some primary cells are made with toxic materials. These materials can be harmful if they are not thrown away properly.

Common Types of Primary Cells

There are many different kinds of primary cells. Each type uses slightly different chemicals to create electricity.

  • Alkaline battery: These are very common and used in many everyday devices.
  • Leclanche battery: This was one of the first widely used dry cell batteries.
  • Lithium battery: These batteries are known for being lightweight and lasting a long time.
  • Mercury battery: These are not used much anymore because mercury is a toxic material.
  • Silver oxide battery: These are often found in small devices like watches and calculators.

Related Topics to Explore

If you want to learn more about batteries, check out these pages:

  • Secondary cell: These batteries can be recharged and used many times.
  • Battery: Learn more about how all batteries work.
  • Table of batteries: See a list of different battery types and their uses.

See also

Kids robot.svg In Spanish: Celda primaria para niños

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Primary cell Facts for Kids. Kiddle Encyclopedia.