Coin Cell Battery Sizes- Introduction and Checking

In this article we will be providing you with a wide information about coin cell batteries also known as button cells. Here we will be talking about different sizes of coin cells and how they are checked. We will be talking about coin cell checking and various sizes. You have already come across the article related to coin cells on our website but here we will be discussing the various types of sizes available in the market. We would like to brush up your knowledge and then hope ahead. 

The article will cover the introduction about the coin cell batteries or button cells. Here we will be discussing the various sizes of the coin cells. We will be talking about what type size you should opt for. You will be introduced to different types of coin cells of different sizes. Follow the thread till the end and gather information about coin cells. 

Button Cell or Coin Cells

The cells are small single cell batteries shaped as a button. The cell is made from stainless steel where the bottom part is the positive terminal of the battery and the metallic cap is the negative terminal. These cells are used to power small electronic portable devices like wrist watches, pocket calculators etc. The devices using coin cells are designed like a cell giving a long service life. It can give a service life for over one year if used continuously in a wristwatch. A high power device like hearing aids use a zinc-air battery having a higher capacity for a given size and dries out after using for a few weeks.

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These cells are easy to dispose of primary cells. The coin cell batteries have common anode materials i.e. zinc or lithium and common cathode materials i.e.oxygen or cupric oxide, carbon monofluoride, silver oxide or manganese dioxide. These cells are dangerous for children, if they swallow them. It causes internal burns or even death due to toxicity. Now you must be clear about what exactly are coin cells or button cells. So there are a few queries we will be answering below under the guidance of experts. Stay in the loop and follow the string. 

What batteries are in coin cells?

Mostly you will come across coin cells having lithium batteries. With lithium batteries, alkaline, zinc air and manganese batteries are also used in the coin cells. As we know that these cells are small in size and are good for light or low powered devices. These batteries are not rechargeable and have good internal resistance. Therefore these cannot provide a lot of continuous current in a go. You can go up to 0.005C high unless the capacity is decreased. The most popular cell used nowadays is CR2032 which produces 220mAh at 3V. These cells are a bit thicker and a bit shorter than alkaline batteries. 

Are all coin cell batteries the same size?

So most of the button cells or coin cells are available in the same size. The alkaline batteries of 1.5 V are more expensive but are the most durable oxide batteries. The lithium coin cells are of size CR2032=20mm x 3.2mm and all the manufacturers make the lithium coin cells of the same size. There are a few coin cells with different sizes like V315 or SR716SW of size 7.9mm x 1.6mm, V371 SR44W of size 9.5mm x 2.0mm etc. The size of the coin cell batteries varies with the name of the cell or material used. Most of the time the size is the same for maximum materials. The coin cells used in small devices are of the same size under different manufacturers. 

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How do I know what size my coin battery is?

You can easily find out the size of your coin battery by simply reading the name available on the battery. For all alkaline coin cells the letter L is marked whereas on lithium coin cells the letter C is marked. The lithium batteries are defined with the help of the first two letters written on it. The letters used on the coin cells are CR and you will come to know the size of the battery. The letter R tells you that the cell is in round shape and letter C tells you that the battery uses lithium chemistry. These letters will help you in finding the size of the cells. So it is found that the battery’s size is always mentioned on the cell by the manufacturer. The terminology is only used for size designation. The diameters and length of the cells can vary with 1mm for different manufacturers. You can also find out the size by reading the three to four digits available on the cell which denotes the cell’s exact size. These are a few ways with which you can know the size of the coin cell by referring to the coin cell size table available on our website. 

What are the features of a coin cell or button cell?

Here we will be discussing a few good features of a coin cell or button cell which will help you in understanding more about the batteries.

-These batteries are best used for portable and small devices. They are very useful for powering our day-to-day gadgets. The cells are very affordable and durable.

-Coin cells like lithium coin cells have a good power to size ratio and have the best working life. These batteries have a life of around 7 to 10 years.

-These cells are very durable and have a good performance life in the worst weather conditions. These are no risk batteries and are not prone to explosion or toxicity. 

-The removal of these cells are very comfortable and easy to use as well. 

-These cells have very low self discharge, which allows them to hold on to a long power life for a long duration. You can use them in your wristwatch for a good time period of at least 1 year.  

Conclusion

We are sure that you must have found the article informative and helpful. You can easily determine the size of your coin cell after reading the article. For more such informative articles visit our website.