There is always a perfect best 9v batteries for smoke detectors out there in the market for you. However, you may not have the time and resources to try and research each of them in detail. So we’ve done the heavy lifting and are sharing below our detailed review of Top 10 best 9v batteries for smoke detectors.
In Hurry? Checkout Our Top Pick Of Best 9v Batteries For Smoke Detectors.
Our Top Pick
![Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - 4 count](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
9.7/10 our score
Best 9v Batteries For Smoke Detectors
Rank | Product Name | Score |
---|---|---|
1 ![]() |
Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - 4 count |
9. 7 |
2 ![]() |
First Alert BRK9120b Hardwired Smoke Detector with Battery Backup, 6-Pack |
9. 5 |
3 ![]() |
Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - Pack of 12 |
9. 1 |
4 ![]() |
First Alert 10-Year Ionization sensor Smoke Alarm, 0827B, White |
8. 8 |
5 ![]() |
Kidde - 21026051 Smoke Detector Alarm | Battery Operated | Model # i9050 |
8. 6 |
6 ![]() |
Energizer 9V Lithium Batteries, Ultimate Lithium 9 Volt Batteries (2 Battery Count) |
8. 2 |
7 ![]() |
Energizer Max 9V Batteries, Premium Alkaline 9 Volt Batteries (8 Battery Count) |
8. 0 |
8 ![]() |
Kidde 21025830 Power Source Replacement Batteries 2 pack (total of 4 batteries) |
7 .7 |
9 ![]() |
Enegitech 9V Lithium Battery 600mAh Non-Rechargeable Li-ion Battery for Smoke Detector Fire Alarm Multimeter, 8-Pack |
7. 4 |
10 ![]() |
First Alert BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 3-Pack |
7. 2 |
1. Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - 4 count
![Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - 4 count](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
9.7/10 our score
- Duracell 9V batteries: The Duracell Coppertop 9 volt alkaline battery is designed for use in household items like garage door openers, smoke detectors, and more
- Duracell guarantees these batteries against defects in material and workmanship. Should any device be damaged due to a battery defect, we will repair or replace it at our option.*
- Long Lasting Power: Duracell alkaline batteries are designed and developed for long lasting performance.
- Guaranteed for 5 years in Storage: Duracell 9V alkaline batteries are guaranteed for 5 years in storage.
- #1 Trusted Battery Brand: Duracell CopperTop batteries are available in Double A (AA), Triple A (AAA), C, D and 9V sizes.
2. First Alert BRK9120b Hardwired Smoke Detector with Battery Backup, 6-Pack
![First Alert BRK9120b Hardwired Smoke Detector with Battery Backup, 6-Pack](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
9.5/10 our score
- Note: A loose neutral (white wire) connection within the home junction box could prompt a device malfunction
- Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm
- To ensure complete protection make sure to place one on each level of your home and in each bedroom
- Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected
- Simple to use, with a single test/silence button, and side load battery compartment, Tamper resistant locking brackets and universal mounting brackets make installation easy
- Rigorously tested to meet UL standards. Emits T3 pattern
- Keep your family safe with this 6 pack of hardwired smoke alarms, the battery backup means constant monitoring, even if there's a power failure
- Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
- First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
3. Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - Pack of 12
![Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - Pack of 12](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
9.1/10 our score
- Duracell 9V Batteries: The Duracell CopperTop 9 Volt alkaline battery is designed for use in household items like garage door openers, smoke detectors, and more
- Duracell guarantees these batteries against defects in material and workmanship, Should any device be damaged due to a battery defect, we will repair or replace it at our option
- Long Lasting Power: Duracell alkaline batteries are designed and developed for long lasting performance
- Guaranteed for 5 years in Storage: Duracell 9V alkaline batteries are guaranteed for 5 years in storage
- Number 1 Trusted Battery Brand: Duracell CopperTop batteries are available in Double A (AA), Triple A (AAA), C, D and 9V sizes
4. First Alert 10-Year Ionization sensor Smoke Alarm, 0827B, White
![First Alert 10-Year Ionization sensor Smoke Alarm, 0827B, White](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
8.8/10 our score
- Complies with all current 10-year legislation in U.S. states/cities where required
- Alarm features an ionization sensor for smoke detection, which is effective in recognizing smoke from flaming fires such as paper and grease fires
- Battery-operated unit provides continuous monitoring even if there's a power failure: plus, it's easy to install
- Alarm also features loud 85-decibel alarm, easy mounting bracket, a single test/silence button, and an end-of-life signal so you know when to replace the unit
- To ensure complete protection make sure to place one on each level of your home and in each bedroom.Same Features as SA340CN and SA340B but adds Sealed Battery Technology.
- First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
- Complies with all current 10-year legislation in states/cities where required
- No Battery Changes for the Life of the Alarm, 3V Lithium Power Cell Included
- Ionization Sensor
- Perfect Mount allows for easy alignment of alarm
- 10-Year Limited Warranty
5. Kidde - 21026051 Smoke Detector Alarm | Battery Operated | Model # i9050
![Kidde - 21026051 Smoke Detector Alarm | Battery Operated | Model # i9050](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
8.6/10 our score
- Easy installation – No wiring required
- Battery operated (9V battery included) – Provides continuous protection even during power failures
- Flashing LED – Indicates alarm is receiving power
- Test button – Verifies battery and alarm operation
- Low battery indicator – Chirps when battery needs replacement
6. Energizer 9V Lithium Batteries, Ultimate Lithium 9 Volt Batteries (2 Battery Count)
![Energizer 9V Lithium Batteries, Ultimate Lithium 9 Volt Batteries (2 Battery Count)](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
8.2/10 our score
- 2-pack of Energizer Ultimate Lithium 9V batteries
- Our Longest-Lasting 9V Battery
- Powers your most critical devices—ideal for your smart home devices, outdoor surveillance systems, digital cameras, and handheld games
- Holds power up to 10 years in storage for trustworthy backup energy, so you’re always prepared
- Performs in extreme temperatures, from -40F to 140° F, for year-round, indoor and outdoor use
7. Energizer Max 9V Batteries, Premium Alkaline 9 Volt Batteries (8 Battery Count)
![Energizer Max 9V Batteries, Premium Alkaline 9 Volt Batteries (8 Battery Count)](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
8/10 our score
- 8 Pack of Energizer Max Alkaline 9V Batteries
- Our long lasting MAX 9 Volt batteries power everyday devices
- Power for your nonstop family’s must have devices like toys, flashlights, clocks, remotes, and more
- Power for your nonstop family’s must have devices like toys, flashlights, clocks, remotes, and more
- Holds power up to 5 years in storage, so you’re never left powerless
- From the makers of the No.1 longest lasting AA battery (Energizer Ultimate Lithium), and the Energizer Bunny
- Energizer created the world’s first zero mercury alkaline battery (comillimeterercially available since 1991), and it hasn’t stopped innovating since
8. Kidde 21025830 Power Source Replacement Batteries 2 pack (total of 4 batteries)
![Kidde 21025830 Power Source Replacement Batteries 2 pack (total of 4 batteries)](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
7.7/10 our score
9. Enegitech 9V Lithium Battery 600mAh Non-Rechargeable Li-ion Battery for Smoke Detector Fire Alarm Multimeter, 8-Pack
![Enegitech 9V Lithium Battery 600mAh Non-Rechargeable Li-ion Battery for Smoke Detector Fire Alarm Multimeter, 8-Pack](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
7.4/10 our score
- 9V 600mAh Lithium battery: 8Pack one-off/disposable/single use battery. Up to 10-year backup battery in ac-powered Smoke detectors and fire alarm.
- Longer Using: Ultra high energy density and lasts 3-5 times longer than ordinary alkaline batteries in high current drain devices like digital cameras.
- Wide Applications: smoke detectors, gas meter, lighting fixture, Infrared Thermometer, Laser Thermometer, stud finder, Wall Scanner, water meter, mini max XP, mini photo printer, camera, patrol sensor device, vital signs monitor, optical equipment (binoculars/night vision) SCT, one touch horizon.
- Performance: Fast flash performance with a consistent and very short recycle time.Factory fresh battery 10 years shelf life.
- Smart Protection: This 9V li-ion battery built with smart protection which ensure good performance in any extreme weather or temperature from -20℃ ~ 60℃ / -4°F ~ 140°F.
10. First Alert BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 3-Pack
![First Alert BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 3-Pack](https://10reviewz.com/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif)
7.2/10 our score
- Keep your family safe with this 3-pack of hardwired smoke and carbon monoxide alarm, The battery backup means constant monitoring, even if there's a power failure
- Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire
- Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
- Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
- Simple to use, with a single test/silence button, and side-load battery compartment, Tamper-resistant locking brackets and universal mounting brackets make installation easy. Dust cover
- First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert brand trust survey in February 2018)
- Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety