Coin Battery Size Chart and Conversion Guide

The world of coin batteries can be overwhelming, especially when trying to find the right size for your device. There are numerous sizes to choose from, each with its own unique characteristics.

The most common coin battery sizes are AA, AAA, D, 9V, and coin cells like CR2032 and SR44. These sizes are widely used in various devices, from flashlights to hearing aids.

To make sense of it all, we've put together a comprehensive coin battery size chart and conversion guide. This handy tool will help you quickly identify the right battery size for your needs.

Whether you're a seasoned DIY enthusiast or a tech newbie, our chart and guide are here to help you navigate the world of coin batteries with ease.

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CR batteries are incredibly compact, and their design allows them to fit in tight spaces while delivering reliable and long-lasting power. They're primarily used in small electronic devices like watches, key fobs, calculators, and medical devices.

The "CR" in the name stands for lithium chemistry — "C" for lithium and "R" for round shape. This type of chemistry allows CR batteries to deliver a high voltage (typically 3.0 volts) and a longer shelf life compared to older battery types.

CR batteries are non-rechargeable and come in a variety of sizes, each with its specific applications. The most common format for naming CR batteries follows the pattern: CR####, where the first two digits represent the diameter of the battery, measured in millimeters (mm), and the last two digits indicate the thickness (or height) of the battery, also in millimeters.

Here's a quick reference to some common CR battery sizes:

A CR battery is a type of coin-cell battery used in small electronic devices.

These batteries are incredibly compact, allowing them to fit in tight spaces while delivering reliable and long-lasting power.

CR batteries use lithium-based chemistry, which delivers a high voltage of typically 3.0 volts.

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This type of chemistry also gives CR batteries a longer shelf life compared to older battery types.

CR batteries are non-rechargeable and come in various sizes, each with its specific applications.

The lithium manganese dioxide (LiMnO2) chemistry used in most CR batteries is stable, long-lasting, and can handle a wide range of temperatures.

The CR battery naming convention is actually quite straightforward once you understand it. The most common format for naming CR batteries follows the pattern: CR####, where the "C" and "R" represent the lithium chemistry and the round shape, but the numbers that follow provide crucial details about the battery's size and capacity.

The first two digits (e.g., 20 in CR2025) represent the diameter of the battery, measured in millimeters (mm). The last two digits (e.g., 25 in CR2025) indicate the thickness (or height) of the battery, also in millimeters.

For example, the CR2025 battery has a diameter of 20 mm and a thickness of 2.5 mm. Other common CR battery sizes follow the same pattern, such as CR1632, which has a diameter of 16 mm and a thickness of 3.2 mm.

Here's a quick breakdown of the CR battery size:

The size of a CR battery is crucial for its performance and compatibility with your device. Larger batteries offer higher capacity and longer battery life, while smaller batteries are more compact and suitable for devices that require less energy.

To choose the right size, consult your device's manual or the old battery to ensure you pick the correct one. Using the wrong size can lead to poor performance, malfunction, or even damage to your device.

Here are some general guidelines to help you choose the right size:

Remember, it's always better to go with the manufacturer's recommendations if you're unsure about the size. A quick search online will also tell you which CR battery size fits your device.

Larger CR batteries offer higher capacity and longer battery life, making them perfect for devices that require more power.

A CR2032 battery is often used in devices that need a bit more power, such as remote controls or motherboards, because it has a larger surface area that allows for more energy storage.

The size of the battery determines how long your device will operate before needing a replacement, so it's essential to choose the right size for your needs.

A CR1632 battery, for example, is ideal for smaller devices like calculators and key fobs, where space is at a premium.

Larger CR batteries can provide more current over a longer period, making them perfect for devices that need extended runtime.

A larger battery might not always fit in smaller devices, which is where smaller options like the CR1220 or CR1216 come into play.

Choosing the right size for your device is crucial. It's always best to consult the device's manual or the old battery to ensure you pick the correct one.

Using the wrong size can lead to poor performance, malfunction, or even damage to your device. This is why it's essential to consider your device's specific needs.

Watches, calculators, and small devices usually require CR1216, CR1632, or CR2025 batteries. Larger electronics like remotes and fitness trackers often need CR2032 or CR2450.

Specialized devices like medical equipment or cameras commonly use CR2032, CR2025, or CR2450 batteries. If you're unsure about the size, it's always better to go with the manufacturer's recommendations.

A quick search online can also tell you which CR battery size fits your device.

Cross Reference is a crucial step in finding the right replacement battery for your device. The watch battery cross reference chart is easy to use, just find the brand of your battery and follow it down to your battery model.

You can also use a coin cell cross reference chart, which is available at BatteriesInAFlash.com, Inc. Coin Cell Cross Reference. Rechargeable Lithium Coin Cell Battery are available at Mouser Electronics.

Finding the equivalent battery is simple, just look at the beginning of the row corresponding to your battery model. For example, if you're looking for a replacement for a CR2032 battery, you can find it in the Button Cell Equivalent Cross Reference chart.

Button cell batteries, also known as coin cell batteries, have a unique naming convention that can be a bit confusing at first. The code on the battery consists of two letters followed by four or three numbers.

The first letter indicates the type of battery, with options including B (Carbon-monofluoride/Lithium), C (Manganese-dioxide/Lithium), G (Copper-oxide/Lithium), L (Manganese-dioxide/Zinc), M or N (Mercuric-oxide/Zinc), P (Oxygen/Zinc), and S (Silver-oxide/Zinc).

Here's a quick rundown of the possible types of button cell batteries:

LR button batteries, commonly known as alkaline coin cells, are a popular choice for powering small electronic devices. They're highly cost-effective and readily available, making them an accessible option for consumers.

These batteries have a diameter of 11.6mm and a height of 4.2mm for the LR43 (AG12) model, and a diameter of 7.9mm and a height of 3.6mm for the LR41 (AG3) model. They're typically 1.5V and suitable for medical devices and electronic toys.

The LR44 (AG13) model is commonly used in toys and small electronic devices, with a diameter of 11.6mm and a height of 5.4mm. It's also typically 1.5V.

Here's a list of some common LR button battery sizes and their dimensions:

These batteries are designed to be leak-resistant, reducing the risk of damage to electronic devices. However, they do have some limitations, including a lower energy density compared to lithium counterparts.

SR button batteries, also known as silver oxide batteries, are highly regarded in the realm of small and precision electronic devices.

They're commonly used in watches, hearing aids, and some medical devices. SR button batteries have a stable and consistent voltage output, which is crucial for devices that require precise energy levels to function correctly.

This stable output ensures that devices not only perform reliably over time but also maximizes the efficiency of the device's operation. SR button batteries have a higher energy density compared to alkaline batteries, including LR types.

This attribute translates to a longer life span for devices, reducing the frequency of battery replacements and, consequently, the long-term costs and inconvenience associated with maintenance.

A different take: Button Battery Size Chart