Ultralife 10 Year Smoke Detector Battery U9VL-X – 9V Lithium Manganese Dioxide, 1200 mAh

Ultralife 10 Year Battery U9VL-X for 9V Smoke Detectors

In many homes, smoke detectors sit quietly in the ceiling, awaiting a signal. The Ultralife 10 Year Battery U9VL-X uses lithium manganese dioxide to deliver consistent 9V power for up to 10 years, reducing the need for yearly replacements and the chance of a drained detector when it matters most.

Designed for peace of mind, this battery is the only 9V option warranted to last a full decade. With a robust 1200 mAh capacity, it maintains reliable energy to support your compatible detectors without frequent changes. The transition to a 10-year life helps simplify maintenance while keeping your alarms ready for action.

Key specifications

• Voltage: 9V
• Battery type: Lithium Manganese Dioxide
• Battery Capacity: 1200 mAh
• Upgrade all your smoke detectors to 10-year life with the only battery warranted for 10 years
• Reliable lithium energy keeps detectors energized for a full 10 years
• Eliminate the cost and hassle of yearly battery changes in your smoke detectors
• Reduces mid-night low-battery alarms and unexpected interruptions
• An excellent choice for second homes or properties that are infrequently checked

What you gain

• Long-lasting power that minimizes regular maintenance
• Fewer nuisance alarms during the night or early morning
• Ideal for remote locations or seasonal properties
• Consistent 9V energy to support compatible detectors over many years

Real-world use scenarios

Think of a vacation home that sits empty for months. The Ultralife 10 Year Battery helps ensure your smoke detector remains powered without annual battery swaps. For rental units or busy households with multiple detectors, a decade-long energy reserve means fewer trips to replace batteries and less upkeep overall.

Upgrading a system is straightforward. This battery delivers a robust energy source without exposing your detectors to frequent maintenance while still enabling routine checks for safety and performance.

Upgrade path

Upgrade all your smoke detectors to 10-year life with the Ultralife battery. With 1200 mAh capacity and a 9V lithium chemistry, you gain a long-term energy solution that minimizes routine changes and helps keep detectors ready when you need them. While product performance contributes to maintenance clarity, always test detectors regularly to confirm operation.