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Kidde Battery CO Detector Review

Written from the listing's specs, not from our own use · How we rate

The Kidde Battery CO Detector keeps it simple: a CO alarm with battery power, so it works in an outage. It is a good match for peace of mind on outage nights, at 6.8/10 on its documented specs.

See current price ↗Prices change often: the listing shows today's.
Specifications
BrandKidde
CategoryCovers, cords & accessories
ASINB004Y6V6K4

Full listing title: Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

Updated October 2026
Exact listing, ASIN B004Y6V6K4
Rating method published

Compared with other CO alarms

Two CO alarms close to it on our rating, each with a dated price.

Kidde Portable CO Detector, 3rd Ed.

Kidde Portable CO Detector, 3rd Ed.

6.8Good · out of 10$19.89 Price on Sep 30, 2026 · may have changed
  • Covers, cords & accessories
See the review ↗
Kidde Plug-in CO Detector

Kidde Plug-in CO Detector

6.8Good · out of 10$26.99 Price on Sep 30, 2026 · may have changed
  • Covers, cords & accessories
See the review ↗

Where does it go?

It runs on batteries, per the listing, so it keeps working while the power is out, which is exactly when the generator runs.

Put one on every sleeping floor and one near the door closest to where the generator sits. Push its button once before storm season and listen for the beep.

Great for you if…

  • You run a generator anywhere near the house

Skip it if…

  • You'd rather wait for buyer reviews: none are captured for this listing yet
  • You think one alarm will do: you want one on every sleeping floor

Power, sensor and alarm

What the Kidde Battery CO Detector listing names:

  • Battery powered
  • CO sensor

Hold the figures against your own generator and its manual before you order.

Kidde Battery CO Detector, view 3

Price and availability

See current price ↗

We have no recent price on file for this listing, so we don't print an old one.

The button opens the exact listing (ASIN B004Y6V6K4), where today's price, stock and seller apply.

Kidde Battery CO Detector, view 4

A better alarm for your house?

Want smoke and CO in one unit? The Kidde AA Battery CO Detector (7.4/10) is a combined smoke and CO alarm.

Rather plug it in? The Kidde Plug-in CO Detector (6.8/10) plugs in, with a battery backup.

Our take

The verdict

The best thing about the Kidde Battery CO Detector is battery power, so it works in an outage. No buyer reviews yet, so the Kidde Battery CO Detector has to win you over on paper. Our main reservation: one alarm is not a plan; you want one on every sleeping floor. We'd pick it if you run a generator anywhere near the house; otherwise, put it next to the Kidde Portable CO Detector (3rd Ed.) first.

The one thing we'd check first

Before you order the Kidde Battery CO Detector, check where it will go: it runs on batteries, so it keeps working during the outage; place one near the door closest to the generator.

Before you buy

Your exact model

Find the full model number on your generator's label and compare it with the listing before you order.

Where it goes

One on every sleeping floor and one near the door closest to the generator. Our CO safety and placement guide covers placement.

How it compares

How the Kidde Battery CO Detector stacks up against the closest alternative, the Kidde Portable CO Detector (3rd Ed.).

CriterionKidde Battery CO DetectorKidde Portable CO Detector, 3rd Ed.
Our rating6.8/106.8/10

Both score 6.8/10. Compare the listings side by side to choose.

The score in detail

How we rated it

Our score: 6.8/10

Key specifications

5 / 10

Build, warranty & certifications

4 / 10

Listing documentation

6 / 10

Fit & compatibility

8 / 10

This product has no captured buyer-review record yet, so its rating comes from the documented listing alone: four criteria scored out of 10 (key specifications; build, warranty and certifications; listing documentation; fit and compatibility), placed on a 4.5–8.5 scale. Read the full methodology.

Read the methodology →

Frequently asked questions

Is the Kidde Battery CO Detector any good?

We rate it 6.8/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.

Will the Kidde Battery CO Detector fit my generator?

Only if your generator manual confirms it. Check the outlet or plug type, the amperage, the list of supported models and any adapter the manual asks for; looking similar is no proof that it fits.

What do you get with the Kidde Battery CO Detector?

Its listing states battery power, so it works in an outage. These are the seller's figures, not our measurements: whether it fits your exact generator is worth confirming first.

What should I check before ordering the Kidde Battery CO Detector?

Your exact model: find the full model number on your generator's label and compare it with the listing before you order. Where it goes: one on every sleeping floor and one near the door closest to the generator. Our CO safety and placement guide covers placement.

Where can I buy the Kidde Battery CO Detector?

We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.

Have you used the Kidde Battery CO Detector yourselves?

No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula, plus our editors' read of how it compares with its rivals.