When it comes to lithium batteries, the CR2 and CR123 models are often compared. Both batteries are popular choices for equipping cameras, flashlights, security devices and other electronic applications, but it is important to understand the differences between them so that you can make the right decision for your project or device.
In this article, we’ll take a look at the key differences between CR2 and CR123 batteries – including the features, size, capacity and applications they are best suited for – so you can choose the battery that best suits your specific needs.
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What is a CR2 battery?
A CR2 battery is a compact lithium battery that is often used in devices that require a smaller power source. Its high energy density and long shelf life make it ideal for applications where space is limited and high performance is required.
Key features of the CR2 battery:
- Voltage: normally 3 V
- Size: 15.6 mm (diameter) x 27 mm (length).
- Capacity: 750 mAh (mAh)
- Weight: lighter and smaller than CR123.
- Longlifetime: long (up to 10 years).
Typical applications for CR2
- Digital cameras (especially compact or SLR models ).
- Flashlights (compact models)
- Laser pointers
- Security systems
- Medical equipment (e.g. glucometers)
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⚡ What is a CR123 battery?
A CR123 battery is also a lithium battery, which is larger and more powerful than a CR2 battery, making it ideal for applications that require higher current or longer run times.
The main features of CR123 batteries are:
- Voltage: typically 3 V
- Size: 17 mm (diameter) x 34.5 mm (length).
- Capacity: approx. 1500 mAh
- Weight: heavier and longer than a CR2 battery.
- Longerbattery life: also longer (up to 10 years).
Normal use CR123
- Longer battery life (more than 12 months)
- Security cameras
- Home automation sensors
- Tactical devices (e.g. laser glasses, night vision goggles)
- High-tech cameras (e.g. DSLR cameras and professional equipment)
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📊 CR2 vs CR123: A Detailed Comparison
| Feature | CR2 Battery | CR123 Battery |
|---|---|---|
| Voltage | 3V | 3V |
| Capacity | 750mAh | 1500mAh |
| Size | 15.6mm x 27mm | 17mm x 34.5mm |
| Weight | Lighter and more compact | Heavier, larger form factor |
| Shelf Life | Up to 10 years | Up to 10 years |
| Applications | Compact cameras, small flashlights | High-power flashlights, cameras, security systems |
| Price | Lower cost | Higher cost due to larger capacity |
How to choose the right battery for your needs 1.
- Consider your energy needs
If your device needs longer runtime and more power, CR123 batteries may be a better choice, especially for high-powered flashlights or security cameras.
- Consider size and weight
If your device requires a more compact solution and space is limited, for example in a security camera or a small flashlight, CR2 batteries are more suitable due to their small size and light weight.
- Compatibility with the device
Check the specifications of your device to ensure compatibility with the battery type. Some devices, in particular professional cameras or tactical devices, are specifically designed for CR123 batteries.
Common uses for each battery type
CR2 batteries:
- Compact digital cameras: CR2 batteries are commonly used in compact digital cameras where space and power are limited.
- Flashlights: Small portable LED flashlights for personal, outdoor or emergency use.
- Laser pointers: Due to their compact size, CR2 batteries are often used in handheld laser devices.
CR123 batteries:
- CR123 batteries are a popular choice for powerful flashlights used by professionals in tactical, law enforcement and emergency situations.
- Security Cameras and Systems: For wireless surveillance cameras and motion sensors that require high power and long run times.
- High-tech cameras: Professional DSLR cameras or surveillance equipment often require the use of CR123 batteries for extended periods of time.
Why buy CR2 and CR123 batteries from DRex Electronics?
DRex Electronics offers
- ✅ High quality original batteries from top brands such as Panasonic, Energizer and Duracell.
- Competitive prices for wholesale and OEM orders.
- ✅ Fast delivery and batteries when you need them.
- ✅ With expert advice on choosing the right battery for your device.
Find CR2 and CR123 batteries for all your applications at DRex Electronics.
✅ Summary
The choice between CR2 and CR123 batteries depends on the requirements of your device. For compact devices with low power consumption, the CR2 battery is a good choice. However, forhigh power consumption devices such as tactical flashlights, security systems or professional cameras, CR123 batteries are more suitable due to their higher capacity and longer lifetime.
Ready to start your project?
Visit DRex Electronics today to find the right CR2 or CR123 battery for your equipment!
