Ever had a crucial piece of gear suddenly die because of a tiny, specialized battery? It’s frustrating, especially when that device is important for safety or fun. We are talking about the common yet often misunderstood CR123 battery. These little powerhouses keep flashlights bright, security cameras watching, and even some medical devices running.
Choosing the right CR123 can feel like a maze. Should you pick lithium or alkaline? What does that “A” or “M” mean on the label? Wrong choices mean wasted money or, worse, your device failing when you need it most. You deserve power that lasts and performs reliably every time.
This guide cuts through the confusion. We will explain exactly what makes a CR123 tick, how to compare brands, and ensure you select the perfect battery for your specific needs. Keep reading to become a CR123 expert and keep your essential electronics powered up!
Top Cr123 Batteries Recommendations
- AVAILABLE SIZES: Duracell High Power Lithium batteries are available in CR123A battery, 223 battery, 245 battery, 28L battery, and CR2 battery sizes
- BUILT FOR RELIABLE PERFORMANCE: In a wide range of high-powered devices, the Duracell CR123A lithium batteries are equivalent to CR17345 3 volt battery types
- LONG LASTING POWER FOR A WIDE RANGE OF DEVICES: CR123A 3v lithium batteries are designed for use in a variety of compatible devices like wireless security systems, home automation, photography and lighting equipment, and more
- GUARANTEED FOR 10 YEARS IN STORAGE: Duracell guarantees each High Power CR123A lithium 3 volt battery to last 10 years in storage, so you can be confident these CR123A batteries will be ready when you need them
- QUALITY ASSURANCE: With Duracell 123 lithium batteries, quality is assured; every Duracell product is guaranteed against defects in material and workmanship
- 6 pack of Energizer 123 Lithium Batteries
- Energizer 123 lithium battery provides serious power for your high tech devices
- Ideal batteries for cameras, flashlights and smart home devices
- Powerful photo batteries last up to 10 years in storage
- Energizer 123 lithium photo battery replaces 5018LC, CR123, CR123A, CR17345 and EL123
- AVAILABLE SIZES: Duracell High Power Lithium batteries are available in CR123A battery, 223 battery, 245 battery, 28L battery, and CR2 battery sizes
- BUILT FOR RELIABLE PERFORMANCE: In a wide range of high-powered devices, the Duracell CR123A lithium batteries are equivalent to CR17345 3 volt battery types
- LONG LASTING POWER FOR A WIDE RANGE OF DEVICES: CR123A 3v lithium batteries are designed for use in a variety of compatible devices like wireless security systems, home automation, smoke detectors and more
- GUARANTEED FOR 10 YEARS IN STORAGE: Duracell guarantees each High Power CR123A lithium 3 volt battery to last 10 years in storage, so you can be confident these CR123A batteries will be ready when you need them
- QUALITY ASSURANCE: With Duracell 123 lithium batteries, quality is assured; every Duracell product is guaranteed against defects in material and workmanship
- One 6-pack of CR123A Lithium 3-volt batteries with 1,550mAh capacity NOT RECHARGEABLE
- Improved design offers up to 10-year leak-free shelf life; store for emergencies or use right away
- Ideal for flashlights, night-vision goggles, and more
- Not recommended for Arlo security cameras and for one-time use only; for rechargeable batteries check out Amazon Basics’ rechargeable line
- Pack of 12 Streamlight Lithium CR123A batteries
- Excellent for streamlight flashlights
- 10 Year storage life
- Not recommended for Arlo security cameras and these batteries are NOT rechargeable
- Length 1.36" (34.5 Millimeter), diameter 0.67" (17 Millimeter)
- One 24-pack of CR123A Lithium 3-volt batteries with 1,550mAh capacity NOT RECHARGEABLE
- Improved design offers a 10-year leak-free shelf life; store for emergencies or use right away
- Ideal for flashlights, night-vision goggles, and more
- Not recommended for Arlo security cameras and for one-time use only; for rechargeable batteries check out Amazon Basics’ rechargeable line
- Chemical System: Lithium / Manganese Dioxide
- Nominal Voltage: 3.0 Volts
- Nominal Capacity: 1,550 mAh
- Continuous Standard Drain: 20 mA
- Integrated PTC Safety Device: Features a built-in Positive Temperature Coefficient resistor. It automatically chokes current flow during a short-circuit to prevent overheating or thermal runaway.
- ADAPT to TEMPERATURE: Our 123 batteries lithium are designed to operate in a temperature range of -40°F to 185°F. Please replace: CR17345, CR123, 123, 123A, BR2/3A, CR17335, CR17345, DL123A, EL123AP, K123LA, L123A, SF123, SF123A, VL123A, 5018LC.
- BATTERY STORAGE LIFE: CR 123A lithium batteries 3v High Power guaranteed 10-year storage. (NOTE: Disposable batteries are not rechargeable).
- CR123A 3V Lithium Battery: 3-volt high-power lithium battery designed for use in a variety of compatible devices such as wireless security systems, home automation, lighting equipment, etc.
- SAFETY CERTIFICATE: Passed CE, IEC60086-4, UL1642 certification, Ideal for high power consumption devices with 123a batteries lithium.
- AFTER-SALE SERVICE: Focus on the research and development and manufacture of small batteries for 17 years, and always strive to provide customers with the most durable high-quality batteries. Please feel free to contact us if you have any questions about the battery.
The Ultimate Buying Guide for CR123 Batteries
CR123 batteries are small but mighty power sources. People use them in many devices. Think flashlights, cameras, and home security sensors. Choosing the right one matters. This guide helps you pick the best CR123 batteries for your needs.
Key Features to Look For
When you shop for CR123 batteries, look closely at these features:
- Voltage: Almost all CR123 batteries offer 3 volts (3V). This is standard. Make sure your device needs 3V.
- Capacity (mAh): This tells you how long the battery will last. Higher milliampere-hour (mAh) ratings mean longer life. For high-drain devices, look for a higher mAh number.
- Shelf Life: How long the battery stays fresh before you use it matters. Good quality CR123 batteries often last 10 years or more in storage.
- Temperature Range: Some batteries work better in extreme cold or heat. Check the operating temperature if you use devices outdoors often.
Important Materials in CR123 Batteries
CR123 batteries are not like common AA or AAA batteries. They use a specific chemistry.
The most common type is Lithium Manganese Dioxide (Li-MnO2). This material gives them several advantages:
- Lightweight: Lithium batteries weigh less than older battery types.
- High Energy Density: They pack a lot of power into a small package.
- Stable Performance: Lithium provides a steady voltage until the battery is nearly dead.
Avoid older, less common types if you see them, like Alkaline versions. Lithium is the standard for reliability.
Factors That Improve or Reduce Quality
Not all CR123 batteries are created equal. Quality differences affect performance and safety.
What Makes a Battery Better?
- Brand Reputation: Trusted brands usually use better internal components. They control quality tightly.
- Leak Protection: High-quality batteries include safety features to prevent leaking, which can ruin your electronics.
- Low Self-Discharge Rate: This means the battery loses very little power while sitting on the shelf.
What Lowers Battery Quality?
- Unknown or Generic Brands: These often have lower capacity and may fail suddenly.
- Old Manufacturing Dates: Always check the date printed on the battery. Old stock performs poorly.
- Poor Sealing: Cheap seals can let moisture in or power out, reducing the battery’s usable life.
User Experience and Common Use Cases
How you use the battery changes what you should buy. Consider your device first.
High-Drain Devices
Devices that use a lot of power quickly need the best batteries. This includes:
- Digital cameras with powerful flashes.
- High-lumen tactical flashlights.
- Wireless security cameras that transmit data often.
For these, buy premium lithium batteries with proven high capacity ratings.
Low-Drain Devices
These devices use power slowly over a long time. Examples are:
- Smoke detectors.
- Door/window sensors in home alarm systems.
- Small remote controls.
For these, a good shelf life is more important than the absolute highest mAh rating. You want them to last years in the device.
Always check your device manual. It will specify if a CR123A (the common name) is required. Using the correct battery ensures your gear works when you need it most.
Frequently Asked Questions (FAQ) About CR123 Batteries
Q: Can I recharge CR123 batteries?
A: Standard CR123 batteries (marked as “CR”) are designed to be single-use (primary). You should not try to recharge them, as this can cause them to leak or explode. Only buy rechargeable versions if your device specifically supports them, and they will be labeled differently (often RCR123A).
Q: What is the difference between CR123 and CR123A?
A: There is practically no difference. CR123A is the more technically correct name, but most people use CR123 interchangeably. They refer to the same 3V lithium battery size.
Q: How should I store unused CR123 batteries?
A: Store them in a cool, dry place away from metal objects. Do not store them in a refrigerator or freezer, as moisture can cause damage. Keep them in their original packaging until you need them.
Q: Are CR123 batteries safe to handle?
A: Yes, when handled correctly. Never short-circuit the positive and negative ends with metal. If a battery is damaged or leaking, handle it carefully with gloves and dispose of it properly.
Q: How do I know when my CR123 battery is dead?
A: In high-drain devices, the device will usually stop working or flash a low-power warning. Because lithium batteries maintain voltage well, they often die suddenly rather than slowly dimming like alkaline batteries.
Q: Why are CR123 batteries more expensive than AA batteries?
A: CR123 batteries use more expensive lithium chemistry and have more complex safety features built in. They also offer much higher power density for their small size.
Q: Can I use expired CR123 batteries?
A: You can try, but performance will be significantly reduced. If the battery is more than five years past its expiration date, it is best to recycle it and buy fresh ones.
Q: What is the correct way to dispose of used CR123 batteries?
A: Do not throw them in the regular trash. Because they contain lithium, they are considered hazardous waste. Take them to an electronics recycling center or a battery drop-off location.
Q: Will using a cheaper brand hurt my expensive camera?
A: Yes, it might. Cheap batteries can sometimes have voltage instability. This instability can sometimes confuse or even damage sensitive electronics, especially in high-end cameras or medical equipment.
Q: What is the actual size of a CR123 battery?
A: They are 16mm in diameter and 34.5mm in length. This standardized size ensures they fit all devices calling for a CR123.