How Do I Know When My AED Battery Needs Replacing?

An automated external defibrillator (AED) is a life-saving device that can deliver an electric shock to the heart to restore a normal heart rhythm. AEDs are used to treat sudden cardiac arrest (SCA), which is a leading cause of death in the United States.

AEDs have a battery that powers the device. The battery needs to be replaced every few years, or sooner if the device is used frequently. Here are some signs that your AED battery may need to be replaced:

  • The AED gives a low battery warning. Most AEDs will give a low battery warning when the battery is getting low. This warning may be a flashing light, a beeping sound, or a message on the AED screen.
  • The AED does not turn on. If the AED does not turn on, it may be because the battery is dead.
  • The AED does not deliver a shock. If the AED does not deliver a shock, it may be because the battery is dead.

If you see any of these signs, you should replace the AED battery immediately. You can purchase a new battery from the manufacturer of your AED.

  • What is the average lifespan of an AED battery? 5-7 years
  • How often should I test my AED? Monthly
  • Where can I find a training course on how to use an AED? Local hospitals, fire stations, and community centers
  • Who should be trained to use an AED? Anyone who may be in a situation where they could come into contact with someone who is experiencing SCA
  • What are the different types of AEDs? Manual and semi-automatic
  • Philips HeartStart OnSite AED
  • Zoll AED Plus
  • Defibtech Lifeline AED
  • Physio-Control LIFEPAK CR Plus AED
  • Stryker LUCAS 3 Chest Compression System

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