CR123A vs CR2 Battery Comparison
| Feature | CR123A Battery | CR2 Battery |
|---|---|---|
| Chemistry | Li-MnO2 | Li-MnO2 |
| Nominal voltage | 3V | 3V |
| Size | Larger cylindrical cell | Smaller cylindrical cell |
| Capacity range | Higher capacity | Lower capacity |
| Current demand | Suitable for higher pulse loads | Suitable for compact devices |
| Typical applications | Security systems, cameras, medical devices | Cameras, sensors, compact electronics |
The CR123A battery usually provides higher energy storage because of its larger physical size. It is commonly selected for devices requiring longer operating time or stronger pulse output.
The HOLITH CR123A 3V 1700mAh lithium battery is designed for applications including security equipment, medical devices, GPS trackers, smart locks, and cameras. It provides a 3V output, 1700mAh capacity under specified discharge conditions, and supports high pulse current requirements.
How to Choose Between CR123A and CR2
The correct battery depends on the device design rather than the battery size alone.
Choose CR123A when the equipment requires:
- Longer service life
- Higher energy capacity
- Frequent wireless communication
- Strong startup or pulse current
- Operation in demanding environments
Choose CR2 when the equipment requires:
- Smaller battery dimensions
- Lightweight design
- Compact installation space
- Moderate power consumption
Before selecting a battery, engineers should review operating voltage, average current, peak current, pulse duration, cutoff voltage, temperature range, and expected replacement cycle.
Manufacturing and Quality Control
A reliable lithium battery supply depends on more than the final electrical specifications. Manufacturing processes include lithium material inspection, manganese dioxide preparation, separator control, electrode assembly, electrolyte filling, sealing, aging, voltage screening, internal resistance testing, and discharge verification.
Working directly with a manufacturer provides better control over battery consistency, production records, material standards, and engineering support. A trader can arrange supply but usually cannot directly manage cell assembly, sealing parameters, or corrective actions.
HOLITH supports OEM and ODM battery projects by evaluating battery structure, terminals, connectors, wires, labels, packaging, and application requirements. Each project can be developed around the actual device load profile.
Bulk Supply and Export Requirements
For large-volume projects, confirm:
- Approved battery samples
- Capacity and voltage tolerance
- Pulse-current performance
- Leakage inspection standards
- Batch traceability system
- Packaging requirements
- UN 38.3 transport documents
- IEC 60086-4 safety compliance
- RoHS and destination-market regulations
IEC 60086-4 defines safety requirements for primary lithium batteries, while UN 38.3 testing supports international transportation compliance.
CR123A and CR2 are not competing products with one universal winner. CR123A is often preferred for higher-energy and higher-pulse applications, while CR2 is suitable when space efficiency is the priority.