AED Battery Replacement: Best Practices

When Does An AED Battery Need to Be Replaced?

An Automated External Defibrillator (AED) is a critical emergency aid tool for healthcare facilities, schools, churches, and other organizations. Maintaining it to ensure that it is in perfect working order is key to its effectiveness and reliability. AED battery replacement is an important part of that maintenance.

How Will We Know When an AED Battery Needs to Be Replaced?

There are several indications that an AED battery needs to be replaced. Here’s what to look for:

Status indicator. This typically indicates when the AED is ready for use. However, if it’s flashing or shows an X, the battery may be low.
Beeping or voice prompts. Some AEDs have an audible indicator to alert the user that the battery needs replacing.
Self tests. Most AEDs run regular self-tests and will notify the user if the test fails due to a low battery.
Battery expiration. The battery itself should have an “install by” date on its label. If that date has passed, it’s wise to replace the battery.
Inspection. Your facility should perform regularly scheduled inspections of your AED with a battery level check as a part of that process.

Regular AED battery replacement gives you the peace of mind to know your defibrillator will function properly in the event of an emergency.

Will an AED Work with a Low Battery?

An AED with a low battery is not reliable and could potentially fail during an emergency. Inspections and self-testing should indicate when it's time to replace the battery which should be done as soon as it’s determined the battery is low.

How Often Should We Schedule AED Battery Replacement?

Frequency of battery replacement can vary depending on the AED model. However, there are general rules of thumb you can adhere to. Replace your AED battery:

At least every 2-5 years
After using it in an emergency
Before the battery expires

How Long Does an AED Battery Last?

An AED battery typically lasts between two to five years depending on the model. In some cases, an AED battery can last four to five years if it’s in Standby Mode and not used in any emergency during that time.
Some premium AEDs may be equipped with longer lasting lithium batteries. As a rule of thumb, it’s wise to check the manufacturer’s guidelines of your AED model to determine the best time to schedule AED battery replacement.

What Are Some General AED Maintenance Tips?

Keeping your AED ready for use is simple and crucial. Follow the maintenance tips outlined below:

Check the status indicator regularly, either weekly or monthly.
Track your AED’s battery expiration date and proactively replace it.
Inspect electrode pads regularly because they also expire. Make sure the packaging is sealed.
Keep a log of all inspections and maintain documentation to demonstrate compliance.
Respond immediately to any alerts such as blinking lights, beeping, failed self-checks, etc.
Keep your AED clean and dust free.
Make sure your defibrillator is easily accessible.