Description
The Ultralife LithiumPower 9V 10-Year Smoke Alarm Battery is a premium professional-grade lithium battery designed for applications where long service life, reliable voltage and low self-discharge are important.
Ultralife’s 9V lithium platform has a nominal voltage of 9.0V and a nominal capacity of 1.2Ah / 1200mAh. It uses Lithium Manganese Dioxide chemistry and is designed for up to 10-year service life in certain applications, including most ionization-type smoke alarms.
Key features
- Brand: Ultralife
- Series: LithiumPower
- Battery size: 9V
- Nominal voltage: 9.0V
- Nominal capacity: 1200mAh / 1.2Ah
- Chemistry: Lithium Manganese Dioxide
- Rechargeable: No
- Approx. weight: 37g
- Terminal: Standard miniature 9V snap terminal
- Format: ANSI 1604-compatible 9V size
- Self-discharge: Less than 1% per year at 23°C
- Operating temperature: Approx. -20°C to +60°C
- Shelf life: Up to 10 years
- Quantity: 1 battery
Ultralife states that this 9V platform can provide up to 5× the energy density of alkaline and up to 10× that of carbon-zinc, along with a flat discharge curve and high running voltage.
Common applications
Suitable for compatible:
- Smoke alarms
- Ionization-type smoke detectors
- Carbon monoxide detectors
- Security systems
- Alarm systems
- Medical instruments
- Test and measurement equipment
- Wireless sensors
- Monitoring equipment
- Other devices requiring a standard 9V primary lithium battery
Ultralife specifically positions this platform for smoke detectors, security sensors, medical telemetry, test equipment and instrumentation.
Important: This is a non-rechargeable lithium battery. Do not attempt to recharge it.
The “10 Year” claim refers to up to 10-year service life in compatible applications and should not be interpreted as a guaranteed 10-year runtime in every device. Actual life depends on device load, environment and usage.




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