Everything You Should Know About the CR2032 Battery Leave a comment
The CR2032 battery is one of the most widely used coin-cell batteries in modern electronics. You’ll find it in watches, calculators, key fobs, motherboards, and medical devices. Despite its small size, it delivers consistent 3-volt power for years.
This guide explains the CR2032 battery’s specifications, lifespan, safety, and why Aussie Battery is a trusted source for genuine CR2032 cells.
What Is a CR2032 Battery
A CR2032 is a non-rechargeable lithium coin battery. It belongs to the lithium manganese dioxide (Li-MnO₂) family. The name “CR2032” breaks down as:
- “CR” means lithium chemistry.
- “20” means 20 millimeters in diameter.
- “32” means 3.2 millimeters in thickness.
The battery delivers 3.0 volts of nominal voltage, which stays stable during discharge. Its compact design allows it to fit inside thin devices while providing strong, long-lasting power.
Technical Specifications of the CR2032 Battery
| Feature | Specification | Description |
| Voltage | 3.0 V | Consistent voltage throughout discharge |
| Capacity | 200–240 mAh | Varies by brand and discharge rate |
| Diameter | 20 mm | Standard for CR2032 models |
| Thickness | 3.2 mm | Ensures tight fit in small electronics |
| Operating Temperature | −20 °C to +60 °C | Works in both low and high temperatures |
| Chemistry | Lithium Manganese Dioxide | Stable, leak-resistant design |
These specifications make the CR2032 ideal for small devices that need continuous, low-drain power for long periods.
Common Uses of the CR2032 Battery
The CR2032 battery appears in hundreds of electronic applications, including:
- Wristwatches and fitness trackers
- Motherboards for BIOS/CMOS backup
- Key fobs and car remotes
- Calculators and digital thermometers
- Medical devices such as glucose meters
- LED lights, toys, and remote sensors
Its balance between size and capacity makes it the preferred choice for compact, low-power electronics.
CR2032 vs Other Coin-Cell Batteries
It’s common to confuse CR2032 with CR2025 or CR2016. While similar, the differences matter:
| Battery Type | Diameter | Thickness | Typical Capacity |
| CR2016 | 20 mm | 1.6 mm | ~90 mAh |
| CR2025 | 20 mm | 2.5 mm | ~170 mAh |
| CR2032 | 20 mm | 3.2 mm | ~240 mAh |
A thicker battery usually means higher capacity. Devices designed for CR2032 need its thickness to maintain proper contact and performance. Substituting with a thinner battery can cause poor connections or power failure.
How Long Does a CR2032 Battery Last
The lifespan of a CR2032 battery depends on usage and environment.
- In low-drain devices like watches or BIOS systems, it may last up to 8–10 years.
- In key fobs or medical devices with frequent power use, expect 2–4 years.
- Shelf life averages 7–10 years if stored at room temperature.
Lithium chemistry gives the CR2032 a low self-discharge rate, so it retains most of its capacity even after years of storage.
How to Identify Quality CR2032 Batteries
Quality matters with coin cells. Low-grade or counterfeit batteries may leak or fail early. Look for:
- Clear labeling of voltage and chemistry
- Manufacturing codes and lot numbers
- Consistent weight and build quality
- Reputable brands or verified sellers
Poor-quality CR2032 batteries can swell or lose voltage under load, damaging sensitive devices. Always choose trusted sources.
Safety and Handling Tips
- Do not recharge a non-rechargeable CR2032.
- Keep batteries away from children; coin cells pose a choking risk.
- Store unused batteries in their original packaging.
- Avoid contact with metal to prevent short circuits.
- Recycle used batteries through proper disposal programs.
Why Buy CR2032 Batteries from Aussie Battery
Aussie Battery focuses on reliability, genuine quality, and customer satisfaction. Every CR2032 battery we supply undergoes quality inspection for voltage and consistency before shipping.
Genuine, Tested Products
Aussie Battery sources products only from verified manufacturers and reputable distributors. Every batch undergoes testing to ensure correct voltage, proper dimensions, and safe operation, with no risk of leakage.
Flexible Purchase Options
Customers can purchase single batteries or bulk packs, making it convenient for personal use or business needs. Bulk orders ensure a reliable supply for multiple devices.
Fast Shipping Across Australia
Orders are processed promptly, usually within 24–48 hours, and shipped via Australia Post. Most deliveries arrive within 3–5 business days, with secure packaging to prevent damage or short-circuiting during transit.
1-Year Warranty and Reliable Pricing
All batteries come with a 1-year warranty covering manufacturing defects under normal use. Pricing is competitive, providing high-quality, authentic cells at a fair market value.
Customer-Focused Support
Aussie Battery offers responsive support via email to help with product selection, compatibility questions, or bulk order inquiries. The team is committed to ensuring a smooth purchase experience and long-term satisfaction.
Aussie Battery – Your Reliable Source for Coin-Cell Power
Aussie Battery is more than a retailer. We are a specialized battery supplier with experience in power solutions for home electronics, cordless tools, vacuums, and professional devices.
We stock a wide range of batteries including CR2032, AA, AAA, 18650, power tool batteries, and replacement packs for major brands like Dyson, DeWalt, Makita, and Ryobi.
Every product is tested, warrantied, and backed by transparent specifications.
Where to Buy CR2032 Batteries
You can find CR2032 batteries directly on Aussie Battery, where each listing includes technical data, voltage ratings, and warranty details.
For businesses or large orders, Aussie Battery offers volume discounts and custom packaging.
Our goal is simple: provide high-quality, tested batteries with fast service and clear product information.
What is a 3V battery and where is it used?
A 3V battery is a small, compact power source that delivers three volts of energy. Commonly found in coin cells like CR2032 batteries, it powers devices such as watches, key fobs, motherboards, calculators, and small electronics. Lithium-based 3V batteries provide stable voltage, long shelf life, and reliable performance for low-drain applications.
How long does a CR2032 battery last?
A CR2032 battery typically lasts 2 to 10 years depending on usage and device type. In low-drain devices like clocks or CMOS memory backups, it can last up to a decade. In devices with frequent power usage, such as key fobs or fitness trackers, the lifespan may be shorter. Proper storage at room temperature extends battery life.
What is included in a CR2032 battery 100 pack?
A CR2032 battery 100-pack contains 100 lithium coin cells, each rated at 3V. This bulk pack is ideal for businesses, electronics workshops, or consumers who use multiple devices regularly. Aussie Battery ensures each cell is tested for voltage, capacity, and safe operation before shipping.
What is the difference between a CR2032 lithium 3V coin battery and other coin cells?
The CR2032 lithium 3V coin battery is a high-quality lithium manganese dioxide cell with a nominal voltage of 3 volts. Compared to other coin cells like CR2025 or CR2016, it has a thicker profile (3.2 mm) and higher capacity (typically 220–240 mAh). This makes it suitable for devices requiring stable long-term power.
Can a 3 volts battery be substituted for a CR2032?
A 3 volts battery can be a CR2032 or an equivalent lithium coin cell, but size and thickness must match. For example, a CR2025 is thinner (2.5 mm) and may not fit properly. Always check the device specifications to ensure the battery is fully compatible.
What is the XCR2032 battery?
The XCR2032 is a compatible alternative to the standard CR2032 coin cell. It offers the same 3V lithium chemistry and dimensions (20 mm diameter, 3.2 mm thickness) and is designed to work with devices like key fobs, motherboards, calculators, and medical electronics. XCR2032 batteries are often used as reliable replacements.
How many devices can a CR2032 20-pack power?
A CR2032 20 pack contains 20 lithium coin cells, each 3V. The number of devices it can power depends on device battery requirements. For example, a key fob uses one battery, so a 20-pack can service 20 fobs. For low-drain devices like CMOS memory, a single battery can last for years.
Is a C2032 battery the same as a CR2032?
Yes, a C2032 battery is often listed as an equivalent to the CR2032. Both have a 20 mm diameter, 3.2 mm thickness, and 3V nominal voltage. C2032 is sometimes used in specific regions or brands, but it functions the same way in compatible electronics.
Where can I buy a 100-pack of batteries for small electronics?
You can purchase a 100-pack of CR2032 batteries from trusted battery suppliers like Aussie Battery. Bulk packs are ideal for workshops, offices, or households with multiple devices. Each battery is tested for voltage, safe operation and comes with reliable shipping and warranty options.
What is a 2032 battery 3V used for?
A 2032 battery 3V powers a wide range of devices, including watches, key fobs, calculators, LED lights, and small medical devices. Its stable voltage and long shelf life make it perfect for low-drain electronics that need reliable, long-term power.
Wrapping Up The Guide
The CR2032 battery powers small devices with consistent reliability. Choosing a genuine cell protects your electronics and extends their lifespan.
Buy from Aussie Battery to ensure you get tested, safe, and long-lasting coin-cell batteries with trusted service and support.
