







🔋 Stay charged, stay ready — power that never quits!
Tenergy 9V Lithium Batteries deliver a robust 1200mAh capacity with 2.5x longer runtime than traditional 9V batteries. Featuring an ultra-low 2% annual self-discharge rate, these non-rechargeable batteries maintain peak performance for up to 10 years in storage. Their slim, rounded design fits a wide range of devices, while their wide operating temperature range (-4°F to 140°F) ensures dependable power indoors and outdoors. UL-certified and supported by a dedicated California-based team, these batteries are the ultimate choice for professionals seeking reliable, long-lasting energy for critical devices like smoke detectors and wireless equipment.










| ASIN | B0887W4985 |
| Antenna Location | Smoke alarm |
| Battery Capacity | 1200 Milliampere Hour (mAh) |
| Battery Cell Type | Lithium |
| Battery Weight | 56 Grams |
| Best Sellers Rank | #119,329 in Electronics ( See Top 100 in Electronics ) #3,670 in Household Batteries & Chargers |
| Brand | Tenergy |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,897) |
| Item Dimensions | 12.7 x 10.2 x 1.9 centimeters |
| Item Weight | 0.08 Kilograms |
| Manufacturer | Tenergy |
| Number of Batteries | 2 9V batteries required. (included) |
| Reusability | Single Use |
| UPC | 844949032384 |
| Unit Count | 2 Count |
| Voltage | 9 Volts |
T**R
The Tenergy 9V Lithium Batteries are a reliable and efficient power source for devices that demand consistent performance. With their impressive capacity, long shelf life, and wide compatibility, these batteries stand out as a top choice for both everyday and emergency needs. Key Features and Benefits: High Capacity (1200mAh): These batteries offer 1200mAh, ensuring they last longer than standard alkaline 9V batteries. Ideal for smoke detectors, wireless microphones, and other high-drain devices. 10-Year Shelf Life: With an extended shelf life of up to 10 years, these batteries are perfect for stocking up. You can count on them to work even after long storage periods. Non-Rechargeable Convenience: As non-rechargeable batteries, they’re hassle-free—no charging required. Simply replace and use. Reliable in Extreme Conditions: Designed to operate in temperatures from -4°F to 140°F, these batteries perform well in a variety of environments, making them suitable for outdoor and indoor use. Leak-Proof Design: The sturdy construction prevents leaks, protecting your devices from damage. My Experience: I bought these for my smoke detectors, and they’ve exceeded my expectations. Installing them was easy, and they’ve been running flawlessly for months without any issues. I also tested one in a wireless microphone for an event, and it provided stable power for hours. The peace of mind from their 10-year shelf life is a huge plus. Pros: High capacity for extended usage. Long shelf life makes them great for emergencies. Reliable in extreme temperatures. Leak-proof and safe for valuable devices. Well-suited for various applications. Cons: Non-rechargeable (not ideal for frequent battery users). Slightly pricier than standard alkaline batteries, but worth it for the performance. Final Thoughts: The Tenergy 9V Lithium Batteries are a smart investment for anyone seeking long-lasting and dependable power. Whether for essential devices like smoke detectors or high-demand gadgets, these batteries deliver outstanding performance. Their durability, extended shelf life, and consistent reliability make them a must-have for your home or emergency kit. Highly recommended!
W**E
Really nice set of batteries that recharge during the day and light up at night.
S**Y
I have been using these in the field. My normal go to 9volt batteries tend to last only a few hours with my equipment. These batteries are lasting all day of useage. Very happy them. Pricey comparing to most batteries, but being lithium, a good value.
P**E
These did not last as long as there competitors. Seem to die in about half the time.
J**I
These batteries are great for battery powered smoke detectors. The batteries last longer than other kinds of 9 volt batteries so you don't need to replace them as often. This gives better peace of mind for safety in your home.
Trustpilot
2 months ago
4 days ago