Duracell CR123 batteries are 3V lithium primary cells designed for high-drain devices requiring reliable, long-term power. These non-rechargeable lithium manganese dioxide (Li-MnO₂) batteries excel in applications like security systems, medical equipment, and photographic gear due to their 10-year shelf life and stable voltage output across wide temperature ranges (-40°C to 60°C). Their cylindrical 16340 format (34mm height x 17mm diameter) provides compact energy storage (1,500mAh typical capacity) suitable for critical devices where battery failure isn’t an option.
What Does CR Stand For In Battery?
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What devices commonly use CR123 batteries?
CR123 batteries power night vision gear, medical devices, and security systems. Their high energy density (300Wh/kg) supports equipment requiring intermittent high-current bursts, such as tactical flashlights needing instant full brightness.
Used extensively in professional and military-grade tools, these batteries operate motion sensors and surveillance cameras with 0.9-1.5A continuous discharge capability. For example, thermal imaging goggles mentioned in military simulations require CR123s’ consistent performance during 8-hour field operations. Medical glucose monitors benefit from their leak-resistant design, maintaining accuracy through 2,000+ measurements. Pro Tip: Always check device voltage specs – some 3V electronics can’t handle CR123A’s initial 3.2V charge.
How does CR123 compare to CR2 batteries?
CR123 cells offer 50% more capacity than CR2 types while maintaining similar diameter. The CR123’s extended 34mm length accommodates larger lithium content versus CR2’s 27mm profile.
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While both deliver 3V, CR123A’s 1,500mAh capacity outlasts CR2’s 800mAh in high-drain devices. Security laser scanners using pulsed 2A draws get 40% longer runtime with CR123s. However, CR2’s compact size better fits space-constrained devices like micro digital thermometers.
| Parameter | CR123 | CR2 |
|---|---|---|
| Diameter | 17mm | 15.6mm |
| Height | 34mm | 27mm |
| Capacity | 1,500mAh | 800mAh |
Can CR123A batteries be recharged?
Standard Duracell CR123As are primary cells – attempting recharge risks rupture. However, 3.7V Li-ion RCR123 variants exist with lower 650mAh capacity and special charging requirements.
True CR123A lithium cells maintain sealed construction preventing safe recombination of gases during charging attempts. A forensic camera’s BMS would reject RCR123s’ 4.2V charged voltage, potentially damaging 3V circuits. Some 16340 rechargeables mimic CR123 size but require specific chargers – using standard CR123 chargers creates fire hazards. What’s the alternative? For rechargeable needs, consider LiFePO4 3.2V cells with matching dimensions but 20% lower energy density.
What’s the shelf life of Duracell CR123?
Duracell CR123s maintain 90% capacity after 10 years in storage at 21°C. Their lithium chemistry enables low 0.5% annual self-discharge versus 2% in alkaline alternatives.
Emergency exit signs using CR123s benefit from this longevity, requiring replacement only every decade. Comparatively, lithium-thionyl chloride cells offer 20+ year shelf life but with lower 2A discharge capacity. In cold chain monitoring, CR123s retain 85% capacity after 5 years at -20°C – crucial for vaccine temperature loggers in Arctic research stations.
| Storage Temp | 5 Years | 10 Years |
|---|---|---|
| 21°C | 95% | 90% |
| 45°C | 85% | 70% |
Are CR123 batteries allowed on planes?
Passengers can carry ≤20 CR123 cells in carry-ons under FAA rules. Their lithium content (≤1g) complies with IATA’s 2g per cell limit for passenger aircraft.
Photographers transporting 15 CR123s for a DSLR flash system meet regulations, but quantities above 20 require airline approval. Thermal camera operators must package spare cells in original retail packaging or insulated containers – loose batteries in checked luggage risk short-circuit fires. Remember: Devices with installed CR123s (like emergency locators) don’t count toward the 20-cell limit, but spares do.
Redway Battery Expert Insight
FAQs
Yes – “123” and “CR123A” denote identical battery sizes, though verify voltage compatibility as some devices require exact 3V lithium chemistry.
How to test CR123 battery life?
Use a multimeter – fresh cells read 3.2-3.3V. Below 2.5V indicates depletion, though some devices cut off at 2.8V for safety margins.
What Does CR Stand For In Battery?
