
Choosing the right CR123A battery replacement can be a daunting task, especially with so many options available. A CR123A battery typically lasts for around 6-10 years in storage, so it's essential to choose a replacement that will meet your needs.
Consider the size and shape of the battery you're replacing. CR123A batteries are widely available in various sizes, but the most common ones are 17mm in diameter and 34mm in length.
When selecting a replacement, check the voltage and capacity. The standard voltage for a CR123A battery is 3 volts, and the capacity can range from 1200mAh to 2000mAh. A higher capacity battery will last longer, but it may also be more expensive.
Similarity and Differences
CR123 and CR123A batteries look and function very similarly, sharing a cylindrical form factor approximately 34.5 mm in height and 17 mm in diameter.
Both batteries are non-rechargeable lithium manganese dioxide batteries with a nominal voltage of 3 volts.
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The CR123A battery is slightly more compact than the standard CR123 battery, with a size variation of less than 0.55 mm.
Both batteries have a long shelf life of up to 10 years when stored properly.
Their physical interchangeability means they fit in the same battery compartments in most devices.
Minor changes in battery life or device performance may be noticed when replacing a CR123A with a CR123 battery due to slightly different capacity and discharge characteristics.
For most consumer electronics, these differences are not significant.
The CR123A generally performs better in lower temperatures compared to the standard CR123.
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Battery Options
CR123 and CR123A batteries are mostly interchangeable, but it's essential to check device manufacturer guidelines to ensure compatibility.
Some specialized equipment may have precise requirements, so it's crucial to consult the manufacturer's guidelines before making a swap.
You can change the batteries on your 5806W3 by following a set of simple steps, including removing the old battery and inserting a fresh CR123A lithium battery.
A fresh CR123A lithium battery should last for about three to five years in a 5806W3, and you'll know it's time to replace the battery when a message is displayed on the security panel identifying its zone.
The red LED light on the device will flash every 45 seconds, and the test switch will become disabled when the battery is low.
You'll need to replace the battery as quickly as possible to avoid the device producing a "chirp" sound every 45 seconds.
When replacing the battery in a 5806W3 Wireless Smoke Detector, apply the new battery and wait 20 seconds for the device to fully power down.
Make sure the positive (+) and the negative (-) ends of the battery are facing the correct directions when applying the new battery.
A properly working 5806W3 Wireless Smoke Detector will have a green LED light blink every 10 seconds to confirm that it is powered on.
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Chemistry and Performance
The CR123A battery's chemistry is key to its impressive performance. It primarily uses lithium manganese dioxide (LiMnO2) chemistry, which ensures high energy density, reliability, and a long shelf life of up to 10 years.
This chemistry also means that the CR123A battery has a consistent voltage output, which is crucial for devices requiring reliable power, such as cameras and security systems. This stability is a major advantage over other battery types.
The CR123A battery's high energy density makes it suitable for devices that require substantial power in a compact form. This is especially useful for high-drain devices like flashlights and digital cameras.
With its ability to deliver high current bursts, the CR123A battery is a robust choice for devices that need a quick power boost. This is beneficial for devices that require high-performance capabilities.
Buying and Safety
When purchasing CR123A batteries, it's essential to buy from reputable sources like Redway Battery or authorized retailers to ensure genuine products with reliable specifications and safety guarantees.
Redway Battery, in particular, is a trusted manufacturer offering high-quality CR123 and CR123A batteries with strict quality control and ISO certification.
Consumers should prioritize purchasing from trusted manufacturers like Redway to guarantee consistent performance and durability.
Many CR123A batteries, including those from Redway Battery, feature Positive Temperature Coefficient (PTC) protection, which prevents overcurrent conditions, enhancing safety and reliability during use.
This safety feature is crucial for smoke detectors, which often rely on CR123A batteries for long-lasting backup power.
Safety Features
CR123A batteries are designed with safety in mind. Many CR123A batteries include Positive Temperature Coefficient (PTC) protection, which prevents overcurrent conditions, enhancing safety and reliability during use.
Smoke detectors rely on these batteries for long-lasting backup power, providing an added layer of protection in emergency situations.
PTC protection is a reliable feature that helps prevent accidents and ensures safe operation of devices that use CR123A batteries.
Is it Rechargeable
The CR123A battery is primarily non-rechargeable, meaning it can't be recharged once depleted. However, there are rechargeable alternatives available that can be used in place of CR123A batteries, such as the RCR123A and 16340 batteries, which operate at a higher voltage.
These rechargeable options, like the Paleblue CR123A USB-C rechargeable battery, offer a convenient solution by allowing users to recharge directly via a USB-C port. They provide similar performance while reducing waste and long-term costs associated with single-use batteries.
It's essential to ensure that any rechargeable alternative is compatible with the device in which it will be used to avoid potential damage.
Expert Views and Comparisons
At Redway Battery, they understand the importance of battery reliability and compatibility, manufacturing their CR123 and CR123A batteries with meticulous precision for consistent power and safety.
Both batteries are designed for high-drain devices like digital cameras and flashlights, making them suitable for similar applications.
The CR123 and CR123A batteries have a long shelf life of up to 10 years when stored properly, and their capacity typically ranges from 1,400 mAh to 2,500 mAh.
While the CR123A generally performs better in lower temperatures, both batteries use lithium manganese dioxide (LiMnO2), offering high energy density and stable performance.
The CR123 and CR123A batteries are often used interchangeably, but it's advisable to check device specifications for optimal compatibility.
Redway Expert Views

Redway Battery understands the importance of battery reliability and compatibility in electronic devices. Their CR123 and CR123A batteries are manufactured with precision to offer consistent power, safety, and long shelf life.
At Redway, they advise users to carefully consider device requirements and operating conditions when choosing batteries. This is because these batteries are often interchangeable, but it's essential to ensure they meet the specific needs of the device.
Redway's batteries deliver consistent quality and adhere to global standards. This empowers users with dependable energy solutions for diverse applications.
vs: Which One is Better?
The choice between CR123 and CR123A batteries often comes down to manufacturer labeling rather than significant performance differences. Both batteries are designed for high-drain devices like digital cameras and flashlights.
Redway Battery Expert Views emphasize the importance of battery reliability and compatibility, advising users to consider device requirements and operating conditions carefully. This is especially true when it comes to CR123 and CR123A batteries.

The CR123A generally performs better in lower temperatures compared to the standard CR123. This is a crucial consideration for users who plan to use their batteries in cold environments.
Both CR123 and CR123A batteries have a long shelf life of up to 10 years when stored properly. This means that users can stock up on batteries without worrying about them going bad.
While both batteries use lithium manganese dioxide (LiMnO2), which offers high energy density and stable performance, there isn't a significant difference in performance between the two.
Specifications and Features
The CR123A battery is a reliable choice for many applications, and understanding its specifications and features is essential for a smooth replacement process.
This non-rechargeable lithium battery has a nominal voltage of 3.0 Volts.
The CR123A battery's high energy density makes it suitable for a wide range of devices, including cameras, flashlights, and medical devices.
Typically, it has a capacity of 1,500 - 2,500 mAh, which provides a long-lasting power source.
The battery's dimensions are standardized, with a diameter of 17.0 mm and a height of 33.4 - 34.5 mm.
Its weight is approximately 16 - 17 grams, making it a convenient option for various applications.
The CR123A battery operates within a temperature range of -40°C to +70°C (-40°F to +158°F).
It can withstand storage temperatures up to +60°C (-40°F to +140°F).
The maximum continuous current is up to 1,500 mA, and the maximum pulse current is up to 3,000 mA.
The discharge rate is typically rated at 20 mA.
The shelf life of the CR123A battery is up to 10 years under optimal conditions.
The termination style is a button top (extending), making it easy to install.
Here are some of the CR123A battery's key applications:
- Cameras
- Flashlights
- Security systems
- Medical devices
- Toys
The CR123A battery is also known by several equivalents, including CR123, DL123A, EL123A, BR2/3A, and K123LA.
One of the safety features of the CR123A battery is Positive Temperature Coefficient (PTC) protection, which prevents overcurrent conditions and enhances safety and reliability during use.
This feature is especially important in devices like smoke detectors, where the battery provides long-lasting backup power for safety devices.
Applications and Advantages
The CR123A battery is a versatile power source widely utilized in various devices due to its high energy density, long shelf life, and reliable performance. It's commonly used in digital cameras, camera flashes, security cameras, flashlights, GPS devices, portable medical equipment, and night vision devices.
CR123A batteries provide a consistent voltage output throughout their discharge cycle, which is crucial for devices that rely on stable power for optimal performance, such as cameras and security systems. This ensures that your devices function as intended, without any fluctuations in power.
These batteries can function effectively in extreme temperatures, typically ranging from -40°C to 85°C (-40°F to 185°F). This resilience makes them suitable for outdoor applications and harsh environments.
CR123A batteries are also less prone to leakage, which can damage devices and reduce their lifespan. Unlike alkaline batteries, they are a safer choice for devices that require reliable power.
The high energy density of CR123A batteries makes them ideal for portable devices that require substantial power without adding bulk. This is why they're often used in remote controls and toys, where compact size and high energy output are essential.
CR123A batteries have a long operational life, often up to ten years when stored properly. This means they're ready for use in emergency devices and infrequently used equipment.
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Equivalent and Replacement
The CR123A battery has several equivalents and substitutes that can be used depending on the device's compatibility.
The 16340 battery is essentially the same size as the CR123A but is a lithium-ion rechargeable cell with a nominal voltage of about 3.6 to 3.7 volts.
Users should check the device specifications to ensure it can handle the higher voltage without damage.
The RCR123A (or 16340) is another rechargeable alternative that can be used in place of CR123A batteries, but it also has a higher voltage (4.2 volts when fully charged), which may not be suitable for all devices.
A single 18650 battery can often serve as a substitute for two CR123A batteries if the device supports it, offering a higher capacity and being rechargeable.
The 16650 battery is another rechargeable option that can replace two CR123A batteries in certain devices, with similar dimensions and a good balance of capacity and voltage.
It's essential to check device compatibility regarding voltage and size before substituting these batteries.
CR123 and CR123A batteries are mostly interchangeable, sharing a cylindrical form factor and non-rechargeable lithium manganese dioxide chemistry.
Their physical interchangeability means they fit in the same battery compartments in most devices, making them widely used in cameras, flashlights, and security equipment.
However, device manufacturer guidelines should be consulted as some specialized equipment may have precise requirements.
The Duracell 123 battery can replace the CR123A battery, designed to be compatible with a variety of devices that typically use CR123A batteries.
It has the same voltage (3.0 volts) and similar dimensions, making them interchangeable in most applications.
The CR17335 battery is also equivalent to the CR123A, sharing the same dimensions and voltage ratings, but with different manufacturers or standards.
The RCR123A is a rechargeable version of the CR123A, operating at a higher voltage of approximately 3.6V or 3.7V.
It can be used as a replacement for CR123 batteries in devices that support rechargeable options.
CR123 and CR123A batteries have identical specifications, including voltage (3V) and capacity (typically between 1400 mAh to 1500 mAh), with the difference being in branding.
Where to Buy and Change
If you're looking for reliable CR123 and CR123A batteries, consider purchasing from trusted manufacturers like Redway Battery, which offers high-quality batteries with strict quality control and ISO certification.
Redway Battery supplies batteries worldwide with consistent performance, emphasizing durability and safety for demanding applications.
To ensure genuine products with reliable specifications and safety guarantees, buy from reputable sources like Redway Battery or authorized retailers.
Where to Buy
You can buy reliable CR123 and CR123A batteries from reputable sources like Redway Battery, which offers high-quality batteries with strict quality control and ISO certification.
Redway Battery supplies batteries worldwide with consistent performance, emphasizing durability and safety for demanding applications.
To avoid low-quality or counterfeit batteries, it's crucial to only buy from highly recognized retailers that carry the best brands.
Redway Battery is a trusted manufacturer that supplies batteries globally, ensuring genuine products with reliable specifications and safety guarantees.
It's also essential to purchase from authorized retailers to ensure you get the real deal, not a fake or subpar battery.
Change batteries on 5806w3

Changing the batteries on your 5806W3 is a straightforward process that can be completed in a few simple steps.
First, remove the 5806W3 from its mounting base to access the battery.
Wait 20 seconds for the device to fully power down to ensure a safe replacement.
Insert a fresh CR123A lithium battery, making sure the positive (+) and negative (-) ends are facing the correct directions.
The battery in a 5806W3 should last for about three to five years.
A low battery will trigger a message on the security panel identifying its zone, and the red LED light will flash every 45 seconds.
If the battery is not replaced within seven days, the device will start producing a "chirp" sound every 45 seconds.
Pressing the test switch will stop the chirping for the next 12 hours.
With the new battery installed, press the back of the detector up against the mounting plate and turn it clockwise to secure it.
A soft click will confirm that the smoke detector is secure, and a properly working 5806W3 Wireless Smoke Detector will have a green LED light blink every 10 seconds to confirm it's powered on.
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