Changing Pads and Batteries: Defibtech Lifeline AED


This is Blaire with Coro Medical, home of AED.US and today we are going to go over how to change the pads and batteries in the Defibtech Lifeline AED.

To prepare for an emergency, you want to keep the electrodes connected to the unit at all times. The pads have a two-year expiration. The expiration date is located on the outside of the pad package. To find this date, flip the device over and look at the date on the outside of the package. You’re going to change the pads at the time of expiration or if you use the AED. To install or replace the pads, unplug the connector from the top of the device and pull the pads out from the back. Then you’re going to take the new pads and slide them in so the wire’s hanging out of the bottom left hand. Don’t tuck them in all the way in just yet. Now you take the connector, plug it in to the top then you can go ahead and tuck the wire into the back of the AED.

The main battery has a five-year warranty. The Defibtech AED and battery are unlike any other AED and the fact that it has a main battery to power the unit, but it also has a 9-volt battery to conduct the self-test. If the light is not flashing, it probably means it is time to change the 9-volt battery. It should be changed every six months unless you have a 2018 device or newer. Those 9-volts should last about 5 years. The AED will work without a 9-volt battery, but it won’t perform any of the self-tests. To install or replace the battery, turn the device on its side and press the button to remove the battery, you take the old battery out, take the new battery and make sure there is a 9-volt in there, and then you just take the new battery and you’re going to pop that back in the AED until you hear it click. Once you’ve changed the pads and battery, verify the “active status indicator” flashes green and the AED is rescue ready.

If you have any questions or if you need to go over purchasing options for Defibtech AEDs, please feel free to give us a call. Our number is 800-695-1209 or you can go online to Thanks for watching!

Written by Blaire

Written by Blaire Czarniecki
Customer Service Director

Fact checked by Phillip Woods, BA, NREMT-P, FP-C

Blaire attended the University of Tennessee where she graduated with a Bachelor of Science in Human Ecology- Child and Family Studies. She has been in the Automated External Defibrillator (AED) industry for over eight years and is the Director of Customer Service for Coro Medical. Blaire is also an American Red Cross-certified CPR/AED/First Aid Instructor, highly trained by each manufacturer on their specific AEDs, and knowledgeable regarding ALL State AED regulations and legislation.

“I know that every day I come to work, I am playing a part in saving someone’s life. I am passionate about these devices and am always looking for new and innovative ways to spread awareness and knowledge about Sudden Cardiac Arrest (SCA). I look forward to the day when everywhere I go, I will see an AED—when SCA will no longer take any lives.”

Last updated February 24, 2021