What is the Difference between CR2032 and 2032 Batteries?

Published on: April 20, 2023
Written by Nolan Miles / Fact-checked by Porimol Sorkar

Coin cell batteries are found in various devices, from watches and remote controls to medical equipment and small electronics. There are many types of coin cell batteries available on the market, and it’s essential to understand the differences between them to ensure optimal performance and safety. In this article, we’ll explore the differences between CR2032 and 2032 batteries, delving into their characteristics, applications, and factors to consider when choosing the right one for your device.

Types of Coin Cell Batteries

There are two primary types of coin cell batteries: lithium batteries and silver oxide batteries. Both have unique properties and applications, so let’s briefly review each type.

Lithium Batteries

Lithium batteries have a higher energy density compared to other battery chemistries. They are lightweight, have a long shelf life, and can operate at a wide temperature range. This makes them ideal for devices that require a stable power source.

Silver Oxide Batteries

Silver oxide batteries offer a stable voltage output, high energy density, and a longer lifespan than alkaline batteries. They are commonly used in watches, hearing aids, and other small electronic devices.

CR2032 Battery

The CR2032 battery is a lithium coin cell battery, which means it utilizes lithium chemistry.

General Characteristics

  • Diameter: 20mm
  • Thickness: 3.2mm
  • Voltage: 3V
  • Capacity: 220-240mAh

Typical Applications

  • Watches
  • Remote controls
  • Key fobs
  • Medical devices

2032 Battery

The term “2032 battery” is somewhat ambiguous, as it could refer to either a lithium battery (like the CR2032) or a silver oxide battery. We’ll focus on the silver oxide version for comparison purposes.

General Characteristics

  • Diameter: 20mm
  • Thickness: 3.2mm
  • Voltage: 1.55V
  • Capacity: 190-210mAh

Typical Applications

  • Watches
  • Hearing aids
  • Small electronics

Differences between CR2032 and 2032 Batteries

Chemistry

The main difference between CR2032 and 2032 batteries is their chemistry. CR2032 batteries use lithium chemistry, while 2032 silver oxide batteries utilize a silver oxide composition.

Voltage

CR2032 batteries have a nominal voltage of 3V, while 2032 silver oxide batteries have a lower voltage of 1.55V. This difference in voltage can impact device performance, so it’s crucial to choose the appropriate battery type.

Capacity

CR2032 batteries generally have a higher capacity (220-240mAh) than 2032 silver oxide

batteries (190-210mAh). This means that CR2032 batteries can provide more energy and may last longer in certain devices.

Discharge Behavior

Lithium batteries, like the CR2032, have a flatter discharge curve than silver oxide batteries. This means they can maintain a more consistent voltage throughout their life, providing a stable power supply to devices. On the other hand, silver oxide batteries may experience a gradual decline in voltage as they discharge.

Shelf Life

Lithium batteries have a longer shelf life compared to silver oxide batteries. CR2032 batteries can typically be stored for up to 10 years without significant loss of capacity, whereas 2032 silver oxide batteries have a shelf life of around 5 years.

Price

CR2032 batteries are generally more expensive than 2032 silver oxide batteries due to their higher energy density and longer shelf life. However, the price difference may not be significant, especially when purchasing in bulk.

Choosing the Right Battery for Your Device

Selecting the appropriate battery for your device is crucial to ensure optimal performance and longevity. Be sure to consult your device’s user manual to determine the recommended battery type. Keep in mind that using the wrong battery can damage your device or result in suboptimal performance.

Safety Precautions

Always handle batteries with care and follow the manufacturer’s instructions for use, storage, and disposal. Never attempt to recharge non-rechargeable batteries or mix different battery chemistries, as this can lead to leakage, overheating, or even an explosion.

Conclusion

In summary, the main differences between CR2032 and 2032 batteries lie in their chemistry, voltage, capacity, discharge behavior, shelf life, and price. Understanding these differences is essential when choosing the right battery for your device. Always consult your device’s user manual and follow safety precautions to ensure optimal performance and safety.

FAQs

Can I replace a CR2032 battery with a 2032 silver oxide battery?

It’s not recommended to replace a CR2032 battery with a 2032 silver oxide battery, as the difference in voltage may cause your device to malfunction or become damaged.

How long do CR2032 and 2032 batteries last in devices?

Battery life depends on the device’s power consumption and the battery’s capacity. In general, CR2032 batteries may last longer due to their higher capacity, but the actual lifespan will vary depending on the specific device and usage.

Are there rechargeable versions of CR2032 and 2032 batteries?

Rechargeable versions of CR2032 batteries, known as LIR2032, are available. However, rechargeable 2032 silver oxide batteries are less common.

How do I dispose of used CR2032 and 2032 batteries?

Both types of batteries should be disposed of according to local regulations for battery recycling. Do not dispose of them in regular household trash, as this can be harmful to the environment.

Can I use a CR2025 battery as a replacement for a CR2032 or 2032 battery?

While CR2025 batteries have the same diameter and voltage as CR2032 and 2032 batteries, they are thinner and have a lower capacity. Using a CR2025 battery as a replacement may result in reduced device performance and shorter battery life.

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