
The CR2 3.0V lithium battery is a popular choice for many devices, including flashlights, cameras, and remote controls. It's a reliable and long-lasting power source.
This battery has a nominal voltage of 3.0 volts and a capacity of around 2400mAh. Its compact size makes it easy to fit into small devices.
In terms of performance, the CR2 3.0V lithium battery has a relatively high energy density, which allows it to deliver a consistent power output over time. Its low self-discharge rate also means it can be stored for long periods without losing its charge.
Explore further: Cr2 vs Cr123a Battery
Battery Details
The CR2 3.0V lithium battery is a cylindrical cell battery with a lithium chemistry, looking like a smaller version of a D Cell Battery or a can.
It's widely used in various applications, including cameras, industrial equipment, and even some toys and clocks. This battery is popular due to its high power and versatility.
Here are some key details to know about CR2 batteries:
- CR2 batteries are non-rechargeable and have a 3.0V voltage.
- They have an 800mAh energy capacity, making them suitable for high energy applications.
- CR2 batteries can last up to 10 years on the shelf with minimal discharge, as long as they're stored in a cool and dry environment.
Battery Chemistry
The CR2 battery chemistry is a lithium-based technology that consists of lithium, alkaline, and Li-Ion components. This combination provides a super-high discharge rate due to the manganese oxide in the positive electrode and the spiral nature of the polar plate.
The CR2 battery has a Positive Temperature Coefficient (PTC) safety device to limit current during short circuit conditions.
A typical CR2 battery contains 0.28 grams of lithium and has a nominal voltage of 3.0V.
Here are some key specifications of the CR2 battery chemistry:
The CR2 battery is designed to operate within a temperature range of -40℃ to 60℃ during discharge, and -40℃ to 75℃ during storage.
Battery Lifespan
Battery lifespan can vary greatly depending on the application and usage. A fresh CR2 battery from a reliable source can last anywhere from a few weeks to over a year.
For frequent applications that require large amounts of energy, such as high lumen flashlights, a CR2 battery may last less than a month. In contrast, a more passive usage, like a home security alarm panel, can get over a year of service life with the right conditions.
Intriguing read: Lifepak Cr2 Battery
Tenergy's CR2 lithium battery has an impressive 800mAh energy capacity, making it suitable for high energy drain devices like digital cameras. This means you can record more and work longer with devices that use this battery.
If you store your CR2 battery in a cool and dry environment, away from direct sunlight and intense heat, it can last for 10 years with very little discharge. This is great news for photographers and hobbyists who use these batteries for their projects.
Here's a rough estimate of CR2 battery lifespan based on usage:
Keep in mind that mixing old and new batteries is not recommended, and these batteries are not designed for Arlo cameras.
Battery Safety Precautions
Battery Safety Precautions are crucial to avoid any potential hazards. To start with, batteries come with an explosion-resistant construction, but special instructions are needed due to the explosive nature of lithium metal and organic electrolytes.
Do not throw batteries into fire, as they're prone to ignition. This is a serious safety issue that can cause harm to you and others.
Keep batteries away from high temperatures, including direct sunlight. The recommended storage temperature is 30℃, and you should avoid temperatures above 45℃.
Avoid storing batteries in high humidity, as storage humidity should not exceed 70% to prevent self-discharge due to corrosion or decrease in insulation. This is especially important to prevent damage to the battery.
Keep batteries out of reach of small children, as they can be a choking hazard or cause other harm if swallowed. If a child does swallow a battery, consult a physician immediately.
Do not mix old and new batteries, or batteries of different series. This can cause a short circuit or other issues that can be hazardous.
Here are some additional safety precautions to keep in mind:
- Do not connect negative and positive electrodes with a wire.
- Avoid carrying batteries together with metallic objects such as necklaces, coins, etc.
- Never wash the battery with an ultrasonic wave washer.
- Always adhere to the directions on the pack for safe usage.
Technical Information
The CR2 3.0V lithium battery is a reliable and efficient power source.
This battery has a nominal voltage of 3V, which is suitable for a variety of applications.
It has a nominal capacity of 800mAh, making it a great choice for devices that require a moderate amount of power.
The self-discharge rate is less than 1% per year, which means it will retain its charge over time.
The battery weighs 11g without packaging, making it a lightweight option.
Here are the technical specifications of the CR2 battery:
The CR2 battery is designed to operate in a wide range of temperatures, from -40°C to 60°C.
It's essential to note that these batteries are non-rechargeable and should not be charged.
The CR2 battery is not compatible with Arlo cameras, so make sure to check the compatibility of your device before purchasing.
The battery size is CR2 3.0V, which is different from CR123A batteries and should not be used interchangeably.
Broaden your view: What Is a Cr2 Battery
Comparison and Alternatives
When choosing a CR2 3.0 V lithium battery, you have several options to consider. Direct replacements and equivalents for the CR2 battery could be DLCR2, KCR2, ECR2 1CR2, and 5046LC.
These batteries are all direct replacements for the CR2 battery, and are all considered primary or non-rechargeable batteries.
If you're looking for a rechargeable option, consider the 15270 or 15266 battery, which are secondary versions of the CR2 battery.
Check this out: Cr123 Rechargeable Battery
Equivalent Battery
If you're looking for a direct replacement for the CR2 battery, consider the DLCR2, KCR2, ECR2, 1CR2, or 5046LC batteries. These batteries are all primary or non-rechargeable, making them suitable for devices that require a CR2 battery.
The DLCR2 battery is a great option if you need a direct replacement. It's designed to fit in and power the same devices as the CR2 battery.
Rechargeable alternatives to the CR2 battery include the 15270 and 15266 batteries. These batteries have a slightly lower capacity than their non-rechargeable counterparts but will still fit in and power the same devices.
You'll see a longer single-use life with non-rechargeable batteries, but rechargeable batteries will save you money in the long run.
Additional reading: Alkaline Battery vs Non Alkaline Battery
Is Energizer 123 the same as 2
Energizer 123 and Energizer 2 are not the same, despite their similar names.
Energizer 123 has a higher capacity of 1230mAh, whereas Energizer 2 has a capacity of 2000mAh. This difference in capacity affects the battery's overall performance and lifespan.
The Energizer 123 is designed for devices that require a lower power output, such as clocks and remote controls.
In contrast, Energizer 2 batteries are suitable for devices that need more power, such as radios and flashlights.
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