How to Change ZOLL AED 3 Defibrillator Battery

How to Change ZOLL AED 3 Defibrillator Battery

Response For Life demonstrates how to change ZOLL AED 3 Defibrillator battery.

How to know if your ZOLL AED 3 defibrillator needs a new battery:

  • The defib will NOT indicate a green tick (check) in the front-facing window, also referred to as the status indicator. This means the window will be blank as shown in the photo.
  • The Defib will beep.
  • It is around 3 to 5 years since the batteries were last changed.
  • The unit has recently been used.

Response For Life THow to know if your ZOLL AED 3 defibrillator needs a new battery

What you need:

  • Brand new ZOLL AED 3 Battery
  • Your ZOLL AED 3 defibrillator

Response For Life Brand new ZOLL AED 3 Battery

Steps to Replace the ZOLL AED 3 Defibrillator Battery

Step 1

Flip the defib over and remove the pad packet (Uni-padz).

Response For Life Flip the defib over and remove the pad packet (Uni-padz)

Step 2

Push in the two clips and remove the existing battery.

Response For Life Push in the two clips and remove the existing battery

Step 3

Insert the new ZOLL AED 3 battery by pushing it in place until you hear a click sound.

Response For Life Insert the new ZOLL AED 3 battery by pushing it in place until you hear a click sound

Step 4

Slide the Uni-padz (pad packet) back into place.

Response For Life Slide the Uni-padz (pad packet) back into place.

Step 5

Wait a moment. The Defib will perform a self-test.

Step 6

The green tick (check) should now show in the front window (status indicator), which indicates the defibrillator is ready to save a life.


Make sure to conduct a regular inspection to ensure that your defibrillators are emergency-ready!


If you need a defibrillator or defib pads and batteries, feel free to contact us!

Reading next

How To Replace Pads And Battery On HeartSine Samaritan 500P Defibrillator
How Do I Know When ZOLL AED Plus Pads Need Changing?

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