A CR123A battery is a compact 3V lithium-based power cell commonly used in high-drain devices requiring reliable performance in demanding conditions. These cylindrical cells (17mm diameter × 34.5mm height) deliver sustained voltage across diverse applications, with capacities ranging 1400-1600mAh for primary versions and 600mAh for rechargeable models. Their stable discharge curve and wide temperature tolerance (-40℃ to 85℃) make them ideal for critical systems needing decade-long operational readiness.
CR123 vs CR123A Batteries: What Are The Key Differences?
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What devices typically use CR123A batteries?
CR123A batteries power professional-grade equipment where size constraints meet high energy demands. Security systems, tactical flashlights, and medical monitors leverage their 10-year shelf life and 3A pulse discharge capability for mission-critical operations.
These lithium cells excel in devices requiring consistent voltage under variable loads. Firearms-mounted optics like red dot sights use CR123As for shock-resistant power, while industrial sensors in pipeline monitoring rely on their -40℃ cold-start performance. Medical defibrillators benefit from the battery’s stable 3V output during life-saving interventions. Pro Tip: Always verify device voltage compatibility – some equipment requires paired CR123As for 6V operation.
| Application | Key Requirement | CR123A Advantage |
|---|---|---|
| Security Cameras | 24/7 operation | 1500mAh capacity |
| Laser Sights | Precision voltage | ±0.1V stability |
| Emergency Beacons | Extreme temperatures | -60℃ to +85℃ range |
How do primary vs rechargeable CR123A differ?
Primary CR123As offer higher initial capacity (1400-1600mAh) versus 600mAh in Li-ion rechargeables, but permit limited charge cycles. The non-rechargeable lithium manganese dioxide chemistry maintains 3V nominal voltage throughout discharge compared to Li-ion’s 3.7V nominal that decreases linearly.
Primary cells dominate applications requiring set-and-forget power solutions – smoke detectors exemplify this with their 10-year operational lifespan. Rechargeable 16340 cells (CR123A-compatible size) suit frequently used devices like LED flashlights, though they require specific 4.2V chargers. For example, security professionals might choose disposables for backup emergency lights but use rechargeables in daily-duty flashlights. Pro Tip: Label rechargeable CR123A clearly to prevent accidental charging of primary cells.
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Redway Battery Expert Insight
FAQs
Yes – CR17345 is an alternative designation for CR123A cells. Always verify physical dimensions (17×34.5mm) and voltage compatibility before substitution.
Are CR123A batteries allowed on planes?
Primary CR123As are FAA-approved for carry-on when properly insulated. Rechargeable versions require terminal protection – limit to 20 cells per passenger per current IATA regulations.
What Does CR Stand For In Battery?
