Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
The Kidde AA Battery CO Detector is a CO alarm built around battery power, so it works in an outage. It makes most sense for peace of mind on outage nights; we rate it 7.4/10 from its listing.
| Brand | Kidde |
|---|---|
| Category | Covers, cords & accessories |
| ASIN | B004Y6V5CI |
Full listing title: Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
Rated from the listing's specs, no buyer reviews yet
What it's made for: peace of mind on outage nights.
Two CO alarms close to it on our rating, each with a dated price.
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.
What the Kidde AA Battery CO Detector listing names:
Hold the figures against your own generator and its manual before you order.
On Sep 30, 2026, that price put it around the middle of the 5 CO alarms we have a recent price for.
The button opens the exact listing (ASIN B004Y6V5CI), where today's price, stock and seller apply.
Our take
The Kidde AA Battery CO Detector is about battery power, so it works in an outage, and it doesn't pretend to be more. No buyer reviews yet, so this Kidde CO alarm has to win you over on paper. Honestly, the catch: 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 First Alert Battery CO Alarm first.
Before you order the Kidde AA 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.
Find the full model number on your generator's label and compare it with the listing before you order.
One on every sleeping floor and one near the door closest to the generator. Our CO safety and placement guide covers placement.
How the Kidde AA Battery CO Detector stacks up against the closest alternative, the First Alert Battery CO Alarm.
| Criterion | Kidde AA Battery CO Detector | First Alert Battery CO Alarm |
|---|---|---|
| Our rating | 7.4/10 | 7.3/10 |
On our rating, the Kidde AA Battery CO Detector comes out ahead (7.4 vs 7.3), so it is the one to start with.
We rate it 7.4/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
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.
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.
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.
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.
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.