Description
The CR1/2AA Lithium Battery is a 3V high-energy primary lithium cell designed for compact electronic devices that require reliable long-term power. It is a non-rechargeable cylindrical battery (also known as CR14250 / 1/2AA size) commonly used in memory backup systems, security devices, sensors, meters, and industrial electronics.
This battery is known for its high energy density, long shelf life, and stable voltage output, making it suitable for low-current but long-duration applications.
Key Features
• High-performance 3V lithium primary battery
• Compact 1/2 AA (CR14250) cylindrical size
• Long shelf life with very low self-discharge
• Stable voltage output throughout usage
• Reliable performance in extreme temperatures
• Leak-resistant sealed lithium construction
• Ideal for backup memory and industrial devices
• Lightweight and compact design
• Suitable for continuous low-drain applications
• Maintenance-free operation
Specifications
- Product Type: Lithium Primary Battery
- Model: CR1/2AA (CR14250)
- Nominal Voltage: 3V DC
- Chemistry: Lithium Manganese Dioxide (Li-MnO₂)
- Typical Capacity: ~650 mAh – 950 mAh (variant dependent)
- Size: 1/2 AA (approx. 14.5 mm × 25 mm)
- Rechargeable: No
- Operating Temperature: -55°C to +75°C (typical industrial grade range)
- Self-Discharge Rate: Very low
- Shelf Life: Up to 10 years (typical)
- Application: PLC memory backup, alarms, sensors, meters, security systems, medical devices, industrial electronics

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