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Do AED’s expire? If your organisation owns an automated external defibrillator (AED), it’s vital to understand that while the AED unit itself doesn’t technically “expire,” many of its critical components do. Knowing when to replace items like pads and batteries ensures your defibrillator is always ready to save a life when it matters most.
Let’s break it down.
The AED unit itself usually has a lifespan of 8–10 years, depending on the model and manufacturer. However, it doesn’t “expire” in the way food or medicine does. Instead, it may:
No longer meet current standards
Become unsupported by the manufacturer
Stop passing self-tests as components age
After the devices warranty has expired, we recommend replacing the AED with a new unit. This ensures the device will work and has the most up to date features.
💡 Tip: Always check your model’s user manual or support documents for expected service life.
AED electrode pads have an average shelf life of 2 to 5 years. This differs based on the model and manufacturer. They contain a conductive gel that dries out over time, making them unreliable (or even unusable) after expiry.
Most pads have an expiry date printed on the packaging
Expired pads won’t deliver a shock properly
You should replace pads immediately after use, even if unused but opened
🔗 See our replacement AED pads
Battery life varies by model, but most last 4-5 years unused, or around 200 shocks when deployed.
Daily self-tests gradually use up charge over time
Used batteries must be replaced immediately
Some units show visual alerts when battery replacement is needed
🔋 For example, the ViVest X3 AED features a 5-year battery life with built-in self-testing to ensure readiness.
It’s not just about compliance, it’s about saving lives.
If your AED has expired pads or a dead battery:
It may fail in an emergency
It could open you up to liability if the device is not properly maintained
You risk losing valuable seconds during a cardiac arrest
Even more critically, UK businesses have a duty of care under the Health & Safety at Work Act 1974 to ensure equipment is fit for purpose.
Here’s how to ensure your defibrillator is always rescue-ready:
| Task | Frequency |
|---|---|
| Visual AED check | Weekly |
| Log test results | Weekly |
| Replace pads | Before expiry / after use |
| Replace battery | Before expiry or when alerted |
| Full AED replacement | Every 8–10 years |
You can download free maintenance logs and checklists online, to be sure you know when maintenance is required.
Not usually. Pads and batteries have separate expiry dates, so track both independently. Some bundles offer replacements together for convenience.
Technically yes, but it’s not recommended. Expired gel may not adhere properly or deliver a full shock. Always aim to replace before expiry. It’s much better to be safe than sorry.
Check the date on the battery label or use the built-in test function (if available). Many devices will beep or display a warning when low.
Prices vary, but expect £30-£70 for pads and £100-£200 for batteries. Browse our full range of accessories.
We stock genuine OEM replacement pads, batteries, and accessories for most major AED brands – including ViVest, iPAD, Zoll, Philips and more.
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