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8 Best CR123A Battery For Smoke Detector | Reviews + Guide

Folks looking for cr123a batteries that promise long-lasting performance must opt for the Duracell Lithium Battery. Lithium batteries from Panasonic, Rapthor, and Enegitech are also reliable options because of their versatility and outstanding performance. 

CR123a battery for smoke detector

The best cr123a battery is widely used in smoke alarms, security systems, and other devices. 

And rightly so, since the nominal voltage of these lithium batteries is 3.0 volts. Interestingly, these cylindrical batteries have a shelf life of seven to ten years. 

So, are you looking forward to purchasing a cr123a battery for a smoke detector? If yes, dive in to explore the nine excellent options that are worth every penny. 

8 Best CR123A Battery For Smoke Detector

1. Duracell 3V Lithium Battery

Duracell CR123A 3V Lithium Battery, 2 Count Pack, 123 3 Volt...
  • POWER FOR A WIDE RANGE OF DEVICES – The Duracell 123 3...
  • LONG-LASTING POWER – Duracell high power CR123A Lithium...

Sitting atop our list is our favorite Duracell cr123a 3V Lithium Battery that is designed for peak performance in high-drain devices. 

Equivalent to the 3V EL123, DL123, and CR17345 battery types, this cr123a lithium-ion battery is compatible with various devices apart from smoke detectors. Coming with a shelf life of about ten years, Duracell supplies its battery in a range of options– one, two, four, six, and twelve-packs, so you’re spoiled for variety. 

Unlike other batteries, these ones are long-lasting and can power your device for about 30 months. So, if you can spend a tad bit, we suggest you give this Duracell battery a go. 

2. Panasonic Lithium 3V Photo Lithium Batteries

Panasonic CR123A Lithium 3V Photo Lithium Batteries, 0.67"...
  • Non-rechargeable lithium battery
  • Rated 3 volt, capacity 1.55ah

Looking for a cr123a lithium battery for your smoke alarm that can perform well in extreme temperatures? Panasonic has got you covered with its 3V Photo Lithium batteries that function well in temperatures ranging between -40°F and 158° F.

These non-rechargeable lithium batteries boast a capacity of 1,550 mAh and provide 3 volts of power, making them perfect for smoke detectors. Their versatility doesn’t end here, as you can use them in high-end flashlights, cameras, and other devices. 

Weighing only about 4.5 lbs, these batteries come in multiple packs for user convenience. However, they last only for about four months, so you might as well order extra packs for future use. 

3. Rapthor 3V Lithium Batteries

Rapthor CR123A 3V Lithium Batteries 20 Pack 1650mAh High...
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High-capacity, reliable, and long-lasting– the Rapthor cr123a lithium non-rechargeable batteries are a perfect alternative to alkaline batteries. 

Packed with 3 volts, each unit offers a capacity of 1,650 mAh– undoubtedly, one of the highest capacities that you can get with cr123a batteries. So, rest assured, they will power your smoke detector for a long time. 

Furthermore, they are UL-certified for built-in PTC (pressure, temperature, control) protection against overheating and over-current. Besides, they come with a shelf life of 10 years, so you can store them without worries. 

The batteries are covered with a 100% satisfaction guarantee, so you can return them if unsatisfied. The only downside is that you cannot use the Rapthor cr123a batteries for Arlo cameras

4. Enegitech 3V Lithium Non-Rechargeable Batteries

Enegitech CR123A Lithium Batteries, 123 3V Battery 1600mAh...
  • 【Non-Rechargeable】 Enegitech 123a 3V lithium batteries...
  • 【Fits For】 These 123a batteries can use for Smart Lock,...

Sold in a pack of six, the Enegitech cr123a 3V lithium non-rechargeable batteries are compatible with a variety of smart devices. Therefore, you can use them to power flood and freeze sensors, laser pointers, and flashlights along with smoke detectors. 

Thanks to the high-quality cell used in manufacturing, the batteries can be stored for up to ten years. These batteries are equipped with an EPTC smart protection chip that makes them safe for use in every setting. 

As each of them offers a capacity of 1,600 mAh, you can rest assured that they are built to last long. However, the brand offers these batteries only in six-pack options, unlike the others that offer multiple packs. 

5. EEMB Lithium Batteries

EEMB CR123A 3V Lithium Batteries 4 Pack 1700mAh 3 Volt 123...
  • BASIC INFO—EEMB Non-rechargeable CR123A battery; 1700 mAh;...
  • CERTIFICATIONS—EEMB CR123A is CE and UN 38.3 compliant. It...

Searching for lithium batteries that work in both extreme hot and cold environments without malfunctioning? Your search ends here because EEMB cr123a lithium batteries power smoke detectors in temperatures ranging from -40°F to 185°F.

Each of the 3V batteries has a capacity of 1,500 mAh, which means they are high in energy density and will last three to five times more than alkaline batteries. Therefore, you can use them in your smoke alarm without thinking twice. 

Available in multiple packs, these batteries are UN and CE-compliant, and UL-certified, which makes them a dependable option. Other than smoke detectors, you can insert these batteries in camcorders, electronic doorbells, and other devices. 

6. Bevigor 3V Lithium Batteries

BEVIGOR CR123a 3v Lithium Battery, CR123a Battery, 8Pack...
  • 🔋【PROFESSIONAL ADVANTAGE】—BEVIGOR is a professional...
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Known for manufacturing the highest-capacity batteries that are high in durability, Bevigor doesn’t disappoint us when it comes to its cr123a 3V lithium batteries. Supplied in only an eight-pack option, these 3V lithium batteries have a power capacity of 1,500 mAh, ensuring long-lasting performance. 

In addition to being UN38.3, UL, CE, and ROHS safety-certified, these batteries are tested under strict quality control standards to make sure they pass every criterion. 

As no harmful compounds are used in manufacturing these batteries, you can store them for upto ten years in the storage box. Though these batteries are perfect for smoke detectors, you can also use them to power Arlo cameras, electric meters, electronic doorbells, and so on. 

7. NVI Lithium 3V Non-Rechargeable Batteries

NYI CR123A 12 Pack Lithium 3V Non-Rechargeable Batteries for...
  • 【High Capacity Battery】: Our CR123a Lithium Batteries...
  • 【Reliable & Ultra Safe】: UL, CE, ROHS certifications...

Ideal for a wide range of applications, the NVI Lithium 3V Non-Rechargeable Batteries are perfect for powering smoke detectors. 

These 1,650 mAh batteries are designed to be safe for use both indoors and outdoors, and their CE, UL, and ROHS certification testify the same. On top of that, they feature PTC protection thermistors to prevent batteries from overheating. 

Highly striking is the fact that each battery is equipped with a safe air hole and an explosion-proof cap. To top it off, these batteries are anti-explosive and anti-corrosive, thanks to their thick steel shell design. Not to forget, these batteries work well in extreme weather ranging between -40°F and +140°F. 

8. PKCELL Lithium 3V Batteries

CR123A CR123 CR 123 Lithium 3V Batteries,4 Packs
  • CR123A DL123 Photo Lithium Battery
  • Warning: Can Not Be Recharged!

Available in multiple options from one-piece to 50-piece packs, these are 3 Volt non-rechargeable lithium batteries , weighing less than 0.04 pounds. 

PKCELL certainly lives up to its tagline, “Green energy, easy life,” and that’s why its batteries are free from mercury and cadmium. Like others on the list, these batteries score high on versatility and are compatible with smoke detectors, torches, cameras, and other electronic devices. 

And as they come with a rating of 1,500 mAh, you can rest assured that they will last longer than most options. Note that these batteries aren’t safe for use in extremely hot regions. 

9. FARSAIL 3V Lithium Batteries

FARSAIL 3V CR123A Lithium Batteries 12 Pack,1650mAh...
  • NOTE: Not recommended for Arlo security cameras, And this is...
  • High-performance 3V lithium batteries, Replacement for any...

With a 1,650 mAh capacity, these 3V batteries from FARSAIL are a reliable option for smoke detectors because they are designed for high-drain devices. Other than that, you can use them in digital cameras, flashlights, medical equipment, and other high-tech devices, except for Arlo cameras.  

What’s more, these non-rechargeable units can be used as a replacement for any standard 3-volt lithium battery like 123a, cr123, and 123. 

If stored properly, the batteries can last for as long as ten years without losing their efficiency. Designed for long-lasting performance, these units can withstand freezing and humid climates ranging from -45°F to 185°F. 

CR123A Battery For Smoke Detector Buying Guide

Still unsure which cr123a battery will be the right choice for your smoke detector? –You’re not alone! Like you, there are many people who often get stuck in the decision-making process, especially if they’re a first-time buyer.  

But don’t worry; we’ve got you covered with this buying guide, where we’ve mentioned some important factors that you must keep in mind while shopping. Let’s check them out. 

1. Battery Life Of Lithium Batteries 

Let us ask you a question-- what are cr123a batteries popular for? Of course, they are much sought-after for their exceptional battery life and extended durability. So, the first thing you must check is the battery life the brands offer with their battery sets. 

In this regard, always check the power rating mentioned by the brand in the description of the product. While some prefer batteries with 1,500 mAh capacity, others opt for a battery rating of 1,650 mAh . Ideally, going for batteries with high ratings is the best bet because you won’t have to replace them soon. 

Many alarm manufacturers mention the power rating and the battery size that are compatible with their devices, so make sure you check the instruction manual. 

2. Shelf Life

Another crucial factor that you must consider is the shelf life of the batteries since they are often stored as a backup for extended periods. When shopping for batteries for your smoke alarm system, look for options that come with a shelf life of at least ten years. 

3. Budget

Rarely do cr123a batteries come in single packs; most brands sell them in multiple packs ranging from a two-piece to 50-piece options. Make a budget so that you don’t spend more than required. 

And when purchasing batteries, weigh the price with the capacity offered because some brands offer more units at a lesser price. 

CR123A Battery For Smoke Detector Verdict

When it comes to smoke detectors, cr123a lithium batteries make a great choice because of their large power capacity and shelf life. 

From budget buys to high-end options, they are available in various price ranges, so finding the one that suits your budget won’t be much of a problem. Before we call the curtains for the day, here’s a quick rundown of our favorites from the list. 

The Duracell cr123a 3V Lithium Battery is our top pick because of its outstanding battery capacity and the multiple options it comes in. But, if you’re looking for batteries that can withstand extreme temperatures, the Panasonic cr123a Lithium 3V Photo Lithium Batteries are your best bet. 

With that, we’ll call it a day!