King of Coin: 10 Common Uses for CR2032 Coin Batteries

When it comes to coin batteries, the most common size is the CR2032. It is almost guaranteed that you have at least one device in your home that uses it. That is why we have dubbed the CR2032 lithium coin battery the King of Coin: it may be small, but it is versatile, long-lasting and powerful.

19.08.2026

Top 10 applications for CR2032 batteries

As one of the leading battery brands, we at GP are experts when it comes to lithium button batteries such as the CR2032. Here are the 10 most common uses for CR2032 button batteries, to prove that the CR2032 is indeed the King of Coin.

Car keys and fobs

GP CR2032 button battery inside a car key fob GP CR2032 button battery inside a car key fob

One of the most common applications for CR2032 lithium coin batteries is car keys and fobs, as well as remote fobs for devices such as garage doors. Since these keyless fobs are often small enough to fit in your pocket, they require small batteries to remain their portable size, making the CR2032 the perfect battery for the job.

Wireless home security systems

A hand holding an iPhone in front of a smart door lock A hand holding an iPhone in front of a smart door lock

Modern home security systems such as Ring, Yale, TP-Link and many others use CR2032 batteries in various small devices and accessories, such as contact sensors and alarm buttons. Due to CR2032's long-lasting power, one CR2032 lithium battery can power your home security system for years at a time, giving you peace of mind that your home and family are safe.

GPS trackers

a GP GPS tracker on a keychain and wallet, with a GP CR2032 battery alongside it a GP GPS tracker on a keychain and wallet, with a GP CR2032 battery alongside it

GPS trackers such as the Apple AirTag and Samsung Galaxy SmartTag have grown in popularity since 2021, and thus the demand for CR2032 batteries that power them. These trackers are versatile in their application, from tracking suitcases when going abroad to tracking pets in case they wander off. As they are small, lightweight and require constant and consistent power, the CR2032 lithium coin battery is the perfect solution due to its low-drain, high-performance design.

Pet collar accessories

a dog wearing a glow-in-the-dark dog collar, with a GP CR2032 battery on the table a dog wearing a glow-in-the-dark dog collar, with a GP CR2032 battery on the table

Modern dog collars come with an abundance of accessories: from flashing lights to keep pets visible in the dark, to GPS trackers to ensure your pet is never truly lost. In order to fit onto the collar without hindering or weighing down your pet, these accessories require a small battery to suit its small, lightweight design, making the CR2032 the perfect battery to keep them powered.

Digital kitchen scales

a GP CR2032 battery being inserted into a kitchen scale a GP CR2032 battery being inserted into a kitchen scale

If you’re a keen baker or a budding chef at home, you likely would have come across CR2032 batteries when you’re measuring your ingredients, as digital kitchen scales are one of the most popular household devices to use lithium coin batteries. In order to accurately measure ingredients to the nearest gram, it’s no wonder the CR2032 battery is the perfect power for such kitchen gadgets.

Cycling computers and sensors

a cycling computer attached to a bicycle on the road a cycling computer attached to a bicycle on the road

As cycling continues to grow in popularity in the UK, cycling accessories have seen a surge in demand. Many commuters cycle not only to travel, but to exercise and stay healthy. From cycling computers that track and store key ride data points and metrics, to cycling sensors that help track your cycle speed, many of these bike gadgets use CR2032 lithium coin batteries due to their lightweight and long-lasting properties, so you are not slowed down.

Digital watches

a digital Casio watch on a table a digital Casio watch on a table

No matter the price point, all watches have one thing in common: the need for reliable, long-lasting power. Many simple digital watches use lithium coin batteries such as the CR2032, as the coin design keeps the watch lightweight, and the lithium composition ensures power is consistent and durable.

Fitness monitors

a man fitting a GP CR2032 battery into his heart rate monitor in the park before a workout] a man fitting a GP CR2032 battery into his heart rate monitor in the park before a workout]

As we strive to be fitter and healthier, more and more fitness trackers are hitting the market, allowing us to track our key fitness and health metrics. From simple pedometers to measure daily step counts, to heart rate chest straps to monitor heartrate, CR2032 lithium batteries are the perfect lightweight power source to ensure the devices stay in position and do not interfere with performance due to any unnecessary excess weight.

Home health devices

a person using a glucose monitor a person using a glucose monitor

The crossover between medical and technological advancements means that many health metrics can be tracked in the comfort of your own home. From blood pressure monitors to blood glucose readers, many of these health devices use CR2032 lithium batteries, thanks to their reliable, long-lasting power source.

Digital thermometers

a person holding a yellow digital thermometer a person holding a yellow digital thermometer

Whether it's medical thermometers to check body temperature, or cooking thermometers to measure food temperature, many digital thermometers rely on lithium coin cell batteries such as CR2032 to deliver consistent power, ensuring that every reading is quick and accurate.

Where can I buy CR2032 batteries?

a man holding a GP CR2032 battery in front of a small remote control a man holding a GP CR2032 battery in front of a small remote control

Even though CR2032 button batteries are specialty batteries, they are readily available in many hardware stores and supermarkets due to its wide range of applications and uses. If you are looking for reliable lithium coin batteries that outlast the competition and keep your devices running longer than other brands, look no further than GP Ultra+ CR2032 batteries.

How do I dispose of my CR2032 lithium batteries?

an assortment of coin and button batteries an assortment of coin and button batteries

You may have seen more and more articles about bin fires caused by improper disposal of batteries, whether they are alkaline or lithium batteries. Even though it may be convenient, never dispose of your batteries in the regular bin. Instead, ensure you take them to your nearest battery recycling point to ensure they are disposed of and recycled safely and securely. To find out more, have a look at our blog post on how to safely dispose your batteries.

What does CR2032 mean?

various GP lithium coin batteries various GP lithium coin batteries

You may think the letters and numbers in CR2032 are arbitrary code, when, in fact, they serve a very specific function and describe the battery's type and size. For instance, did you know that the "C" in CR2032 indicates that it is a lithium battery? To learn more about what the numbers and letters represent, head on over to our Ultimate Guide to Coin Batteries to learn all about it!

GP's King of Coin competition

banner featuring a GP Ultra+ CR2032 coin battery for the King of Coin competition banner featuring a GP Ultra+ CR2032 coin battery for the King of Coin competition

The CR2032 lithium coin battery is one of GP's best sellers, and with the such a wide range of uses and applications, it's not hard to see why. As a result, we have launched our King of Coin competition, to celebrate this small but mighty coin battery. With prizes to be won every month, the competition culminates in a Royal Weekend Game of Thrones experience for 2 people, complete with travel arrangements to Winterfell Castle (Castle Ward, Northern Ireland), private guided tours, and on-location activities fit for royalty!

Starting from 1st August 2026 and running until 31st December 2026, show us how you use your GP CR2032 lithium battery in your everyday life, and you could win 1 of our 5 monthly GP Treasure Boxes every month, containing handy electronics from a flashlight built for adventure to the world's fastest charger. To learn more and to enter our competition and submit your entry, click here now!