Jiangmen Hongli Energy Co.ltd

Jiangmen Hongli Energy Co.ltd

CR123A vs CR14505 Battery: How to Select the Correct Size

2026 07/20

CR123A and CR14505 batteries are both widely used primary lithium batteries based on Li-MnO2 chemistry. Although both provide a stable 3V output, their physical dimensions, capacity, discharge performance, and application suitability are different. Selecting the correct battery size requires understanding the device load, installation space, and operating requirements.

CR123A vs CR14505 Battery Comparison

Feature CR123A Battery CR14505 Battery
Chemistry Li-MnO2 Li-MnO2
Nominal voltage 3V 3V
Diameter Approximately 17mm Approximately 14mm
Height Approximately 34.5mm Approximately 50.5mm
Typical capacity Higher capacity range Medium capacity range
Main advantage Strong pulse output and longer runtime Compact cylindrical design

CR123A batteries have a larger diameter and higher energy capacity, making them suitable for devices requiring longer operation and stronger pulse performance. CR14505 batteries follow the AA-size form factor and are often selected when equipment requires a slimmer battery design.

How to Select the Correct Battery Size

Battery selection should start with the device requirements rather than only comparing dimensions.

Choose CR123A when the application requires:

  • Higher energy storage
  • Longer maintenance intervals
  • Strong startup current
  • Security and monitoring functions
  • Outdoor or industrial operation

Choose CR14505 when the application requires:

  • AA-compatible dimensions
  • Space-efficient installation
  • Lightweight product design
  • Moderate power consumption

Engineers should evaluate:

Parameter Why It Matters
Operating voltage Ensures stable device performance
Average current Determines expected battery life
Pulse current Affects wireless transmission and startup
Temperature range Impacts performance in extreme environments
Battery dimensions Determines mechanical compatibility

Manufacturing Control Behind Battery Performance

A battery with the same voltage rating may perform differently depending on manufacturing quality. Primary lithium battery production requires strict control of lithium materials, manganese dioxide quality, separator performance, electrolyte filling, sealing pressure, and aging conditions.

HOLITH controls production through material inspection, electrode preparation, automated assembly, sealing, aging testing, voltage screening, internal resistance measurement, and discharge verification.

The HOLITH CR123A 3V 1700mAh lithium battery is produced for applications requiring stable voltage output and reliable pulse performance. It is commonly used in security equipment, cameras, medical devices, smart locks, GPS tracking devices, and industrial electronics.

Working directly with a manufacturer allows better control over specifications, batch traceability, engineering adjustments, and quality feedback. A trader may provide products from different sources but usually cannot directly manage production parameters.

OEM and Bulk Supply Considerations

For customized projects, battery suppliers should review:

  • Device power consumption
  • Installation space
  • Terminal structure
  • Connector requirements
  • Wire specifications
  • Storage conditions
  • Expected service life
  • Packaging requirements

HOLITH provides OEM and ODM support for different battery configurations, including customized terminals, wires, labels, and packaging solutions.

For export projects, quality documentation is also important. IEC 60086-4 defines safety requirements for primary lithium batteries. UN 38.3 testing is required for lithium battery transportation compliance, together with documents such as MSDS and destination-market certifications.

Final Selection Guide

CR123A and CR14505 are both reliable Li-MnO2 battery options, but they solve different design challenges. CR123A is generally preferred for higher-energy and higher-pulse applications, while CR14505 is suitable for products where AA-size compatibility and compact installation are important.

The best battery choice comes from matching chemistry, size, electrical performance, and application conditions before mass production.