When and How Do I Replace My Carbon Monoxide or Combination Alarm’s Battery?

We recommend replacing the batteries in all your alarms every six months, or any time the unit indicates the battery is low. A good rule of thumb is to replace the batteries when you change your clock for daylight savings time. When the battery needs replacement, remove the old battery and replace it with the same type.

Since CO alarms cannot detect carbon monoxide in end-of-life mode, simply replacing the battery isn’t enough to keep it functioning. It's important to learn how to identify carbon monoxide detector end-of-life warnings to ensure your family's safety with a properly functioning alarm.

First, locate the model number of your alarm. Our alarms have different battery installation procedures depending on the model number. Next, remove the alarm from the wall or ceiling. Most alarms are attached to a mounting plate and can be removed by turning the alarm counterclockwise.

Once you have identified the model number and correct battery type, reference your user’s manual for installation directions. If you need further assistance, you can find your user’s manual and additional product documents by searching by your model number

Need Further Assistance?

If you have any questions or need further assistance, please don't hesitate to contact our customer care team.

They are available to help you with any concerns or inquiries you may have. Reach out to us for support, and we'll be happy to assist you!