If you have an AED, you're already a step ahead in protecting lives—but it’s not a one-and-done setup. AEDs require a bit of upkeep to stay rescue-ready, and one of the most important things you can do is make sure the battery and pads aren’t expired.
In this post, we’ll break down how to tell when your AED battery or pads need replacing, what signs to look for, and how to stay ahead of any surprises.
1. Check the Expiration Dates
Every AED battery and set of electrode pads has a specific shelf life. These expiration dates are usually printed directly on the item or its packaging.
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Pads generally expire 18–30 months after manufacture.
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Batteries often last 4–5 years depending on the brand.
Once expired, pads may not stick properly to the skin, and batteries may not have enough charge to deliver a shock. Not ideal in an emergency.
2. Look for Alerts on the AED
Most modern AEDs do regular self-checks and will alert you when something’s off.
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A flashing red light or beeping sound is a common sign something’s wrong.
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Some models show an error code or display a message like “Replace Battery” or “Pads Expired.”
If your AED is giving you a warning, don’t ignore it—it means it might not work when it matters most.
3. After Every Use
Any time your AED is used, the pads must be replaced, even if they weren’t applied to the patient. And depending on the model, the battery might also need to be replaced or rechecked after use.
4. Keep a Maintenance Schedule
The easiest way to stay on top of this? Use a checklist or calendar reminder. At AEDMarket.com, we always recommend registering your AED and signing up for alerts or reminders if your manufacturer offers them.
If your AED is part of a larger safety program, like AED365, you’ll likely already have access to helpful tools to track expiration dates, inspection logs, and readiness reports.
5. Not Sure? We’ve Got Your Back
If you’re not sure whether your pads or battery are still good, or you can’t remember the last time you checked—reach out. We can help you find the right replacements and even walk you through how to check your device.
Need to replace your battery or pads?
We carry replacements for all major AED brands and offer free shipping on every order. Check out the options at AEDMarket.com or call us at 1-800-441-8378.