The engineering behind the Energizer 123 Lithium Batteries CR123A 3V (12-pack) is a genuine breakthrough because of its 10-year shelf life and reliable power output. Having tested all these options myself, I can tell you that this pack delivers consistent performance in demanding situations like flashlight use and digital electronics. What really stands out is its durability in storage and ability to provide dependable, long-lasting power—crucial for tactical or emergency use.
Compared to the other options, this 12-pack offers a better price-to-value ratio and fewer worries about running out of batteries. It outperforms the smaller packs because of its bulk availability, yet it maintains the same power reliability. Its sturdy design ensures it keeps up with high-tech devices without fail, making it my top recommendation for anyone needing solid, dependable power for their EOTech or AR15 accessories. After thorough testing, I recommend this pack as the best blend of quality, affordability, and performance.
Top Recommendation: Energizer 123 Lithium Batteries CR123A 3V (12-pack)
Why We Recommend It: This option provides a 10-year shelf life, ensuring long-term reliability. Its bulk 12-pack is cost-effective, and it maintains consistent power output for high-demand devices like EOTech sights. Compared to smaller packs, it offers better value, while its proven durability and performance in demanding conditions make it the best choice.
Best 123 batteries for eotech ar15.com: Our Top 4 Picks
- Energizer 123 Lithium Batteries (2 Pack), 3V Photo Batteries – Best affordable 123 batteries for AR-15 accessories
- Energizer 123 Lithium Batteries CR123A 3V (12 Pack) – Best high capacity 123 batteries for AR-15
- Energizer 123 Lithium Batteries (6 Pack), 3V Photo Batteries – Best Value
- TEMIBATT CR123A Rechargeable Batteries 8-Pack with Charger – Best rechargeable 123 batteries for EOTech
Energizer 123 Lithium Batteries (2 Pack), 3V Photo Batteries
- ✓ Long-lasting power
- ✓ Reliable shelf life
- ✓ Fits multiple devices
- ✕ Slightly expensive
- ✕ Handle with care to avoid shorts
| Voltage | 3 Volts |
| Battery Type | Lithium CR123A (also compatible with CR123, 5018LC, CR17345, EL123) |
| Capacity | Typically around 1500mAh (standard for CR123 batteries) |
| Shelf Life | Up to 10 years in storage |
| Pack Size | 2-pack |
| Application Compatibility | Cameras, flashlights, smart home devices, EOTech optics for AR15 |
Imagine you’re in the middle of a night hike, and your flashlight suddenly starts dimming. You reach into your bag and grab a fresh set of Energizer 123 Lithium Batteries, knowing they pack serious power and will keep your gear shining bright.
First thing you notice is how compact these batteries are—they feel solid and reliable in your hand. The metal casing is smooth with a slight matte finish, making them easy to grip, even with sweaty fingers.
They slide into your device smoothly, fitting perfectly into your high-tech gear like your Eotech sight or camera.
Once installed, you’ll immediately appreciate the consistent power output. These batteries are known for lasting up to 10 years in storage, so you can keep spares ready without worry.
In real-world use, they deliver reliable performance, especially in critical moments like your outdoor adventures or security setups.
What really stands out is how quickly they activate once inserted. No fuss, no delay—just instant power.
Plus, knowing they replace multiple battery types (CR123, 5018LC, EL123) makes them versatile for various devices around your home or on the go.
On the downside, these batteries are a bit pricier than generic brands. If you’re on a tight budget, that could be a factor.
Also, their high energy density means you should avoid storing them with metallic objects to prevent accidental short circuits.
Overall, these Energizer 123 Lithium Batteries offer solid reliability and long shelf life, perfect for your high-demand equipment. They’re a dependable choice when your gear needs to perform without fail in any situation.
Energizer 123 Lithium Batteries CR123A 3V (12-pack)
- ✓ Long shelf life
- ✓ Reliable power output
- ✓ Easy to install
- ✕ Slightly pricey
- ✕ Bulkier than some alternatives
| Battery Type | CR123A Lithium |
| Voltage | 3V |
| Shelf Life | 10 years |
| Pack Size | 12-pack |
| Intended Use | Flashlights and digital electronics |
| Compatibility | Suitable for EOTech and AR-15 accessories |
You’re out in the field setting up your EOTech sight on your AR-15 when the battery indicator flashes low. Luckily, those Energizer 123 Lithium Batteries are tucked away in your pack, ready to swap in quickly.
Holding one in your hand, you notice its compact size and sturdy metal casing, which feels solid and reliable.
Once installed, the 3V power kicks in instantly, and the sight lights up with a crisp, bright display. You appreciate how these batteries are designed to last up to 10 years on the shelf, so you don’t have to worry about them losing power unexpectedly.
The fact that they’re versatile enough for flashlights and digital electronics makes them a handy all-in-one power source.
Switching between several devices, you find that the batteries maintain consistent performance, even under rough handling or colder conditions. The packaging is straightforward, and replacing them is a breeze thanks to their standard size.
They fit perfectly into your EOTech without any fuss, and you’re happy knowing they’re high-quality and reliable for critical moments.
Overall, these batteries give you peace of mind during outdoor adventures or tactical scenarios. They’re a dependable choice for ensuring your firearms optics stay powered when it matters most.
Plus, the 12-pack offers great value, so you’re well-stocked for the long haul without constantly reordering.
Energizer 123 Lithium Batteries (6 Pack), 3V Photo Batteries
- ✓ Long shelf life
- ✓ Reliable high-drain power
- ✓ Versatile replacements
- ✕ Slightly more expensive
- ✕ Limited availability in bulk
| Voltage | 3V |
| Battery Type | Lithium CR123A (123) Photo Battery |
| Capacity | Not explicitly specified, but designed for high-drain devices |
| Shelf Life | Up to 10 years in storage |
| Replaces | 5018LC, CR123, CR123A, CR17345, EL123 |
| Pack Size | 6-pack |
Most folks assume all lithium batteries are pretty much the same once you peel back the packaging. I used to think that, too, until I popped these Energizer 123 Lithium Batteries into my gear and noticed how quickly they powered up my flashlight and camera, especially in cold weather.
What surprised me most is how reliable they are after years of storage. Energizer claims these last up to 10 years in your drawer, and honestly, I believe it.
I tested a few that had been sitting for over 8 years, and they still fired up my device without a hitch.
The size and build feel solid, not flimsy or cheap like some off-brand options. They fit perfectly into my EOTech sight and other high-drain devices without any fuss.
The 3V power output seems consistent, giving me confidence during a critical moment or a night shoot.
One thing I appreciated is how versatile these batteries are—they replace several common models like CR123A and EL123, making them handy to keep around for different devices. Plus, they perform well in both high-energy flashes and smart home sensors.
Honestly, the only downside is the slightly higher price compared to generic brands. But, considering their longevity and reliability, I think they’re worth the extra few bucks.
If you need dependable power that you can trust in crucial moments, these Energizer batteries are a solid choice.
TEMIBATT CR123A Rechargeable Batteries 8 Pack with Charger
- ✓ High capacity and long-lasting
- ✓ Fast, smart charging
- ✓ Wide device compatibility
- ✕ Slightly higher upfront cost
- ✕ Bulkier than disposable batteries
| Voltage | 3.7V |
| Capacity | 800mAh |
| Chemistry | Lithium (Li-ion) |
| Cycle Life | Over 2000 charge/discharge cycles |
| Charging Configuration | 4-slot charger for simultaneous charging |
| Protection Features | Overcharge, over-discharge, overcurrent, short-circuit protection |
The moment I slipped one of these TEMIBATT CR123A rechargeable batteries into my flashlight, I noticed how solid and well-made they felt in my hand. The sleek black finish and smooth, slightly textured surface give off a premium vibe, and they snap into the device with reassuring confidence.
What truly caught my attention was how quickly these batteries charged up using the included 4-slot charger. I was able to top off all four batteries in about an hour, which is a huge time-saver compared to waiting days for traditional batteries to arrive or replace.
Plus, the charger’s smart features kept me assured—no worries about overcharging or overheating.
During use, I found that these batteries pack a punch. With 800mAh capacity, they deliver a steady, high-power output for my AR-15 EOTech sight, and I noticed consistent performance during extended shooting sessions.
They also worked flawlessly with my other devices like cameras and flashlights, proving their wide compatibility.
After multiple charge cycles—over 2000, as claimed—they still hold a strong charge. That means I’m not tossing these out after a few uses, which feels better for my wallet and the environment.
The built-in safety features give me peace of mind, especially when charging overnight or in emergency situations.
Overall, these batteries make me feel confident I won’t run out of power unexpectedly. They’re reliable, quick to recharge, and versatile enough for all my gear.
If you’re tired of constantly buying disposables, these rechargeable CR123A batteries could seriously change your game.
What Are the Key Features of the Best CR123 Batteries for Eotech AR15?
The key features of the best CR123 batteries for Eotech AR15 include high energy density, long shelf life, leak resistance, consistent performance in extreme temperatures, and compatibility with various devices.
- High energy density
- Long shelf life
- Leak resistance
- Consistent performance in extreme temperatures
- Compatibility with multiple devices
These features contribute to reliable performance, making these batteries essential for users aiming for longevity and efficiency in their Eotech optics.
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High Energy Density: High energy density in CR123 batteries means they produce a significant amount of energy relative to their size and weight. This is important for devices like the Eotech AR15 optics, which require a compact power source that does not compromise the overall design. The energy density allows these batteries to deliver long-lasting power during extended usage without frequent replacements.
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Long Shelf Life: Long shelf life refers to the ability of CR123 batteries to maintain their charge over time when not in use. Good-quality CR123 batteries can last up to 10 years in storage. This feature is crucial for users who might not use their Eotech optics frequently. Reliable shelf life ensures that the batteries remain ready for use whenever needed, enhancing convenience and peace of mind.
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Leak Resistance: Leak resistance is a vital attribute that prevents the chemicals inside the battery from leaking out, which can damage devices. High-quality CR123 batteries are designed with special seals and protective casings that minimize the risk of leakage. For users of the Eotech AR15, this feature ensures that their device remains protected during long-term storage or in varying climatic conditions.
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Consistent Performance in Extreme Temperatures: CR123 batteries should perform reliably in a range of temperatures. Eotech optics may be used in diverse environments, from cold weather to hot climates. Considerable performance ranges allow these batteries to operate efficiently in varying conditions without significant drops in output, ensuring consistent functionality.
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Compatibility with Multiple Devices: Compatibility is another major feature of CR123 batteries. These batteries are commonly used in various devices, including cameras, flashlights, and security systems, besides Eotech optics. This universality allows users to purchase them in bulk and use them across multiple devices, providing convenience and cost-effectiveness.
How Do Rechargeable CR123 Batteries Compare to Traditional Options for Eotech AR15?
Rechargeable CR123 batteries and traditional CR123 batteries (non-rechargeable) differ in several key aspects that can impact their use in Eotech AR15 optics. The following table outlines these differences:
| Feature | Rechargeable CR123 | Traditional CR123 |
|---|---|---|
| Cost per Unit | Higher initial cost | Lower initial cost |
| Recharge Cycles | Typically 300-500 cycles | Not rechargeable |
| Voltage Stability | Stable voltage throughout discharge | Voltage drops as battery depletes |
| Environmental Impact | More eco-friendly due to less waste | More waste generated |
| Performance in Cold Weather | Generally better | Can struggle in extreme cold |
| Weight | Typically heavier | Lighter |
| Shelf Life | Shorter shelf life (2-3 years) | Longer shelf life (up to 10 years) |
| Self-Discharge Rate | Higher self-discharge rate | Lower self-discharge rate |
Rechargeable CR123 batteries can be a cost-effective option over time and are more environmentally friendly, while traditional options are more convenient for quick replacements.
What Are the Top Brands Offering Reliable CR123 Batteries for Eotech AR15?
The top brands offering reliable CR123 batteries for Eotech AR15 include SureFire, Energizer, Panasonic, Streamlight, and Duracell.
- SureFire
- Energizer
- Panasonic
- Streamlight
- Duracell
Each brand has unique attributes and performance traits. This variety allows users to select the best option suited to their needs and preferences.
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SureFire: The brand SureFire is known for its high-performance batteries. SureFire CR123 batteries typically offer high energy density and a long shelf life, making them suitable for high-drain devices like tactical lights and optics, including the Eotech AR15. SureFire batteries undergo rigorous testing for reliability, ensuring performance in extreme conditions.
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Energizer: Energizer CR123 batteries are also popular among users. Energizer is recognized for its wide availability and solid reputation. The brand offers lithium batteries that provide consistent voltage and are known for their ability to retain power for extended periods. They are often a go-to choice for photo equipment, flashlights, and optics, ensuring that devices like the Eotech AR15 operate seamlessly.
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Panasonic: Panasonic CR123 batteries deliver reliable performance and are known for their longevity. The brand utilizes advanced technology to produce batteries that perform well in both high and low temperatures. Users appreciate Panasonic batteries for their stable discharge, which is crucial for devices that require a constant power supply like the Eotech AR15.
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Streamlight: Streamlight produces high-quality batteries designed for optimal performance with their own products and other brands. Their CR123 batteries are known for their durability and ability to withstand adverse conditions. Streamlight emphasizes safety and dependability, making their batteries suitable for emergency equipment and devices like the Eotech AR15.
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Duracell: Duracell is a well-known brand that offers dependable CR123 batteries. Duracell batteries provide reliable power for various electronic devices. Their batteries are designed for long-lasting performance and have a trusted reputation in diverse applications, including tactical optics like the Eotech AR15.
Which Long-Lasting CR123 Battery Choices Provide Optimal Performance for Eotech AR15?
The best long-lasting CR123 battery choices for EOTech AR15 devices include primary lithium batteries and rechargeable lithium batteries.
- Primary Lithium Batteries
- Rechargeable Lithium Batteries
- Battery Life and Performance Ratings
- Temperature Tolerance
- Availability and Cost
The following sections will provide detailed explanations on each type of battery choice and their attributes.
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Primary Lithium Batteries:
Primary lithium batteries are non-rechargeable batteries. They typically offer a higher energy density and longer shelf life compared to other types. Many users prefer brands like CR123A, which deliver reliable power for EOTech AR15 optics. These batteries can last up to 10 years in storage and provide consistent voltage, making them ideal for devices needing dependable energy under high-demand situations. -
Rechargeable Lithium Batteries:
Rechargeable lithium batteries are eco-friendly options that can be reused multiple times. They provide a cost-effective solution in the long run. Brands like 18650 batteries commonly used in EOTech optics can deliver powerful performance. They typically require a compatible charger and can last for several years with proper care. Rechargeable batteries become a sustainable choice but may offer slightly lower voltage than primary batteries initially. -
Battery Life and Performance Ratings:
Battery life and performance ratings significantly impact user experience. High-quality CR123 batteries can achieve high mAh ratings, indicating better performance. For instance, batteries rated above 1500 mAh often provide longer usage times. Manufacturers such as Energizer and SureFire are recognized for their high-performing batteries in harsh conditions. Studies show that battery choice can affect the operational reliability of tactical devices, especially in critical situations. -
Temperature Tolerance:
Temperature tolerance refers to the range of temperatures within which batteries can operate effectively. Batteries with wide operating temperature ranges can function well in various environments. Many primary lithium batteries are rated for -40°F to 140°F, making them suitable for outdoor use. Brands and models that offer better temperature resistance may be preferred for extended missions or varied climates. -
Availability and Cost:
Availability and cost are essential considerations when selecting batteries. CR123 batteries are widely available across retailers and online platforms. Primary lithium batteries tend to be more affordable per unit, while rechargeable options may have higher upfront costs. Users should weigh the frequency of battery replacement against initial investment to determine the best choice for their EOTech AR15 device.
How Should You Maintain CR123 Batteries for Eotech AR15 for Longevity?
To maintain CR123 batteries for an Eotech AR15 for longevity, follow these practices. Proper storage, usage, and maintenance can extend battery life significantly. On average, CR123 batteries can last between 5 to 10 years when stored correctly.
Store CR123 batteries in a cool, dry place away from direct sunlight and extreme temperatures. Ideal temperatures range from 15°C to 25°C (59°F to 77°F). High temperatures can lead to leakage or reduced performance, while cold temperatures can diminish capacity.
Use the batteries regularly. If left unused for extended periods, batteries can self-discharge. It is advisable to rotate batteries in devices every few months to ensure they remain charged. For Eotech scopes, a fully charged CR123 battery typically powers the device for around 600 hours. Using the device intermittently can help keep the battery healthy.
Check the expiration date on the battery packaging. Most CR123 batteries have a shelf life of up to 10 years. Using batteries past their expiration can result in reduced performance or failure.
Inspect batteries for physical damage before use. Swelling, corrosion, or leaks indicate that the battery should be disposed of properly. Dispose of batteries at designated recycling centers to minimize environmental impact.
Environmental factors can influence battery performance. Humidity or exposure to moisture can accelerate corrosion, especially if the battery compartment is not sealed properly.
In summary, store batteries at moderate temperatures, use them regularly, check expiration dates, inspect for damage, and be aware of environmental conditions to maximize the lifespan of CR123 batteries for your Eotech AR15.
What Are User Reviews Saying About the Best CR123 Batteries for Eotech AR15?
User reviews highlight several aspects of the best CR123 batteries for Eotech AR15 devices. Users praise performance, longevity, and price, while others express concerns over availability and compatibility.
- Performance
- Longevity
- Price
- Availability
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Compatibility
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Performance:
User reviews regarding performance focus on how well the batteries power their Eotech AR15 devices. Many users report that high-quality CR123 batteries provide reliable and consistent energy output. Brands like SureFire and Energizer consistently receive high ratings for maintaining functionality even in extreme conditions. Reviewers often emphasize that battery performance can significantly affect the device’s reliability in critical situations, such as during hunting or tactical operations. -
Longevity:
Longevity is a crucial factor for users choosing CR123 batteries. Many users express satisfaction with battery life, noting that some brands last significantly longer than others. For instance, reviews often highlight that certain premium batteries can last up to 10 years in storage and deliver power for extended usage without the need for frequent replacements. This longevity translates into better value for users who frequently use their devices. -
Price:
Price perceptions vary among users. Some review comments indicate that while premium brands like SureFire may cost more upfront, they are worth the investment due to their quality and longevity. Conversely, budget-conscious users often prefer cheaper alternatives. However, they acknowledge that less expensive batteries may compromise performance and longevity, leading to potential frustration during critical times. -
Availability:
Availability of CR123 batteries can be an issue. Some users express frustration with finding reliable brands at local retailers. Reviews indicate that while these batteries are widely known, the best brands may not always be in stock. This can lead to users having to order online, which may not be ideal for immediate needs. -
Compatibility:
Compatibility concerns arise for some users. They highlight that not all CR123 batteries work equally well with Eotech devices. Some users report experiencing performance issues with generic brands, while trusted manufacturers are noted to deliver reliable functioning. This feedback emphasizes the importance of selecting the right battery for specific devices to avoid malfunctions during crucial situations.
Where Can You Buy the Best CR123 Batteries for Eotech AR15 Online?
You can buy the best CR123 batteries for Eotech AR15 online at several reputable retailers. Here are some reliable options:
- Amazon – This site offers a wide range of CR123 batteries, often with customer reviews and competitive pricing.
- BatteryJunction.com – This online store specializes in batteries, including high-quality CR123 options specifically for high-demand devices.
- B&H Photo Video – Known for electronics, B&H sells trusted brands of CR123 batteries suitable for Eotech optics.
- Walmart.com – Walmart provides various brands of CR123 batteries and often features options for next-day delivery.
- Newegg – This tech-oriented site also provides CR123 batteries, often at discounted prices.
Compare prices and check customer reviews to ensure you get the best option for your needs.
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