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expiredSUCHaDEAL posted Dec 31, 2025 3:07 PM

Kidde Battery Powered Smoke Detector w/ 10-Year Battery & LED Status Lights

$30

$35

14% off
Amazon
33 Comments
10.8K Views
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Deal Details
Amazon has Kidde Battery Powered Smoke Detector w/ 10-Year Battery & LED Status Lights (20SD10) on sale for $29.79. Shipping is free with Prime or on $35+ orders.

Thanks to Community Member SUCHaDEAL for sharing this deal.

Product Details:
  • Built-in 10-year battery
  • Detects smoke over 25% faster*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes.

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Limited time deal, while supplies last.
  • About this Product:
    • Rated 4.4 out of 5 stars at Amazon based on over 12,870 customer reviews.
  • About this Store:

Original Post

Written by SUCHaDEAL
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Kidde Battery Powered Smoke Detector w/ 10-Year Battery & LED Status Lights (20SD10) on sale for $29.79. Shipping is free with Prime or on $35+ orders.

Thanks to Community Member SUCHaDEAL for sharing this deal.

Product Details:
  • Built-in 10-year battery
  • Detects smoke over 25% faster*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes.

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Limited time deal, while supplies last.
  • About this Product:
    • Rated 4.4 out of 5 stars at Amazon based on over 12,870 customer reviews.
  • About this Store:

Original Post

Written by SUCHaDEAL

Community Voting

Deal Score
+31
Good Deal
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Top Comments

social_gamer
3793 Posts
766 Reputation
friendly reminder it is 10 years from manufactured date so check the box & device
Docmarmo
1524 Posts
149 Reputation
No CO2, bummer, still a decent deal.
garycecs
206 Posts
14 Reputation
These are awful. We built a new 1 bedroom ADU and did a 2 room, 1 bathroom addition on our house last year and the contractor put these in the new ADU and replaced everything in our house and new addition with these. They go off in the middle of the night for no reason. They claimed there was a fire there was no fire, I reset them multiple times, I replaced them with new versions of same brand. My tenant was also waking up in the middle of the night with these. They are horrible. Maybe you will get lucky, it seemed like it was just 3 faulty units out of the 7 we installed. Its not worth the hassle though. It is awful waking up at 4am to a fire alarm and if they are mounted on the ceiling you have to get a chair or a ladder to reset them.
Dont trust me? Read reviews on amazon or just search google. These things suck, I wouldn't even take them for free.

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33 Comments

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Jan 8, 2026 4:49 PM
237 Posts
Joined Nov 2011
ooiman92Jan 8, 2026 4:49 PM
237 Posts
Last I was in Costco, they have 2 pack first alert combo interconnected for $65? Could be wrong on the price.

https://www.costco.com/p/-/first-...4000293715

Edit: Confirmed price at Niles IL through app
Last edited by ooiman92 January 8, 2026 at 08:58 AM.
Jan 8, 2026 5:05 PM
164 Posts
Joined Dec 2007
lonerJan 8, 2026 5:05 PM
164 Posts
I was recently looking at smoke detectors, as several of the ones in my home have aged out. I read something that concerns me about this model. The 10 year battery is just a lithium battery, and supposedly lithium batteries don't have the slow degradation in charge that the usual alkaline batteries have. They tend to drop off somewhat preciputously.
So this causes a potential concern that one could miss the warning chirps as the battery goes from charged to dead over a shorter amount of time.
Anyway, also note that these are battery only (not hardwired) and not interconnected. I need those features, so I'll be ordering this 9-volt First Alert model:
https://a.co/d/cBZZBZb
Jan 8, 2026 5:14 PM
66 Posts
Joined Oct 2016
dad3and3Jan 8, 2026 5:14 PM
66 Posts
Are Kidde better than First Alert? Lowes has a seemingly similar unit for $27.
Jan 8, 2026 5:21 PM
206 Posts
Joined May 2016
garycecsJan 8, 2026 5:21 PM
206 Posts
These are awful. We built a new 1 bedroom ADU and did a 2 room, 1 bathroom addition on our house last year and the contractor put these in the new ADU and replaced everything in our house and new addition with these. They go off in the middle of the night for no reason. They claimed there was a fire there was no fire, I reset them multiple times, I replaced them with new versions of same brand. My tenant was also waking up in the middle of the night with these. They are horrible. Maybe you will get lucky, it seemed like it was just 3 faulty units out of the 7 we installed. Its not worth the hassle though. It is awful waking up at 4am to a fire alarm and if they are mounted on the ceiling you have to get a chair or a ladder to reset them.
Dont trust me? Read reviews on amazon or just search google. These things suck, I wouldn't even take them for free.
Jan 8, 2026 5:22 PM
206 Posts
Joined May 2016
garycecsJan 8, 2026 5:22 PM
206 Posts
Quote from dad3and3 :
Are Kidde better than First Alert? Lowes has a seemingly similar unit for $27.
Kidde are awful, I would try any other brand.
Jan 8, 2026 5:23 PM
206 Posts
Joined May 2016
garycecsJan 8, 2026 5:23 PM
206 Posts
Quote from ooiman92 :
Last I was in Costco, they have 2 pack first alert combo interconnected for $65? Could be wrong on the price.

https://www.costco.com/p/-/first-...4000293715

Edit: Confirmed price at Niles IL through app
First Alert are far better than these. I would go for any brand over Kidde.
Jan 8, 2026 7:08 PM
176 Posts
Joined Dec 2018
YayGJan 8, 2026 7:08 PM
176 Posts
$30 for a smoke detector and thats a deal?

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Jan 8, 2026 8:59 PM
97 Posts
Joined Aug 2010
makimbellJan 8, 2026 8:59 PM
97 Posts
Why are so many people in here interested in detecting carbon dioxide? I don't think that's ever integrated into smoke detectors
Last edited by makimbell January 8, 2026 at 01:11 PM.
1
Jan 8, 2026 9:34 PM
237 Posts
Joined Nov 2011
ooiman92Jan 8, 2026 9:34 PM
237 Posts
Quote from makimbell :
Why are so many people in here interested in detecting carbon dioxide? I don't think that's ever integrated into smoke detectors
Feel like it's a typo, but everyone else seems to be putting that. I'm assuming they all meant CO (monoxide). 🤷
Last edited by ooiman92 January 8, 2026 at 01:37 PM.
Jan 8, 2026 9:40 PM
1,392 Posts
Joined Sep 2010
dkd711Jan 8, 2026 9:40 PM
1,392 Posts
I've never had any of these stupid things last 10yrs. 4yrs or less and it starts chirping. Hate that we can't just change a battery anymore
Jan 9, 2026 6:22 AM
8 Posts
Joined Nov 2015
andrewpableJan 9, 2026 6:22 AM
8 Posts
Quote from dkd711 :
I've never had any of these stupid things last 10yrs. 4yrs or less and it starts chirping. Hate that we can't just change a battery anymore
I can't speak explicitly to kidde sealed 10year alarms but at least on first alert ones you can just open it up and swap the lithium battery out. Most alarms can be opened with a thin flat head or a simple pry tool and it won't affect their functionality (I work on them). The biggest thing to keep in mind is if it's a hardwired unit to make sure you don't puncture the back sticker/seal (tape it up if you do) and make sure the unit is closed back up all the way and that no foam or rubber gasketing is damaged in the process. On hardwired models they are designed to seal away from the junction box for air movement as the air space in the junction box which usually isn't airtight can affect the ability for the smoke to properly make it to the sensor.
Jan 9, 2026 6:26 AM
8 Posts
Joined Nov 2015
andrewpableJan 9, 2026 6:26 AM
8 Posts
Quote from Docmarmo :
No CO2, bummer, still a decent deal.
In all honesty any alarm that is UL 217 (smoke) and UL 2034 (CO) certified is going to do about the same job but I'd highly recommend UL 217 8th edition or higher as that includes improvements to nuisance fires. There are some low cost Chinese units that can be had for much less than what you find in big box stores that work just as well as any other alarms.
1
Jan 9, 2026 6:34 AM
8 Posts
Joined Nov 2015
andrewpableJan 9, 2026 6:34 AM
8 Posts
Quote from loner :
I was recently looking at smoke detectors, as several of the ones in my home have aged out. I read something that concerns me about this model. The 10 year battery is just a lithium battery, and supposedly lithium batteries don't have the slow degradation in charge that the usual alkaline batteries have. They tend to drop off somewhat preciputously. So this causes a potential concern that one could miss the warning chirps as the battery goes from charged to dead over a shorter amount of time. Anyway, also note that these are battery only (not hardwired) and not interconnected. I need those features, so I'll be ordering this 9-volt First Alert model:https://a.co/d/cBZZBZb
So actually you have a little bit of confusion, basically every smoke alarm certified to the UL 217 standard is tested to ensure that the battery it ships with and any recommendations they provide will give you a fairly decent amount of low battery warning before being completely dead. The information about lithium vs alkaline is to not replace an alkaline with a lithium or vice versa because it was not validated and like you said their voltage discharge curve is quite different. If it's a sealed 10year alarm then it was designed with the specific lithium battery they put inside and will give you plenty of warning about a low battery before the alarm is totally dead.
Jan 9, 2026 2:22 PM
558 Posts
Joined Apr 2021
YW55Jan 9, 2026 2:22 PM
558 Posts
Quote from dkd711 :
I've never had any of these stupid things last 10yrs. 4yrs or less and it starts chirping. Hate that we can't just change a battery anymore
It's intentionally misleading. If you read the fine print it's 10 year warranty with no guarantee on battery performance.
1

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Jan 9, 2026 8:40 PM
939 Posts
Joined Jul 2007
fubagJan 9, 2026 8:40 PM
939 Posts
Quote from andrewpable :
In all honesty any alarm that is UL 217 (smoke) and UL 2034 (CO) certified is going to do about the same job but I'd highly recommend UL 217 8th edition or higher as that includes improvements to nuisance fires. There are some low cost Chinese units that can be had for much less than what you find in big box stores that work just as well as any other alarms.
Any suggestions for Chinese ones?

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