Kidde 9-Volt Smoke Detector Replacement Battery, 2 Count
Kidde 9-Volt Smoke Detector Replacement Battery, 2 Count
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Kidde 9-Volt Smoke Detector Replacement Battery, 2 Count

4.6 stars out of 514 reviews
(4.6)|
514 ratings

Key item features

  • Convenient Pack: This product includes a pack of two 9-volt batteries, providing a readily available power source for various devices.
  • Extended Power: Each battery offers an estimated two-year power supply, specifically designed for smoke and carbon monoxide alarms.
  • Kidde Compatibility: These batteries are suitable for use with all Kidde brand smoke and carbon monoxide alarms, ensuring proper functionality.
  • Home Protection: Utilizing these batteries helps maintain the operational status of safety alarms, contributing to a well-protected home environment.
  • Versatile Application: Beyond safety alarms, these 9V batteries can also be used to power a variety of other electronic devices.
  • Effortless Replacement: The batteries are designed for quick and easy replacement, allowing users to restore power to devices in minutes.
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was $9.36
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About this item

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Customer ratings & reviews

4.6 out of 5 stars
stars514 ratings232 reviews
How item rating is calculated

Reviews summary

Pros
  • : Provides power for at least 2 years.
  • : Offered at a cost similar to others in its class.
  • : Made to last longer and work well over time.
  • : Lasts for two years for smoke and carbon monoxide alarms.
Cons
  • : Detector beeps unexpectedly, requiring maintenance or troubleshooting.
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Showing 1-3 of 232 reviews

Sep 23, 2025
Ronald
Top Reviewer
Item details
Size: AA
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Costs a Little More But Worth It Long lasting

About 8 years ago, I bought a carbon monoxide detector that came with these batteries. This week, I walked past it and heard a chirp. I bought these exact same batteries for replacement. They are guaranteed to last 2 years. The old batteries lasted EIGHT. They cost a little more than other alkaline batteries, but they are worth it.

Helpful?3LAQBOUAPYBM38386202
Jan 14, 2026
WalmartCustomer
Item details
Size: 9V
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Haven't used them yet but reviews are good. Like the fact they are good for 2 years as one smoke alarm is on 10 foot ceiling and I have to get someone to install it for me

Incentivized Review
Helpful?3LAQBOUAPYBM38386202
reply from Kidde Expert

Thank you for your review! We’re glad you like the added convenience and longevity. We appreciate you choosing Kidde.

Aug 25, 2025
Diane
Top Reviewer
Item details
Size: 9V
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Two Year Battery at a Good Price

A two -year battery is great for our smoke detectors, less climbing up the ladder and handling of the detectors.

Helpful?3LAQBOUAPYBM38386202