How to Change Pads and Batteries on the Cardiac Science Powerheart G3 Plus and G3 Pro with Blaire



This is Blaire with Coro Medical, home of AED.US, and today we’re going to go over how to change the pads and battery in the Cardiac Science Powerheart G3 Plus and G3 Pro AED. Now the pads and batteries, how you change those, are the same for both of these units, so I’m just gonna show you on the G3 Plus, but keep in mind that it’s the same for the G3 Pro.

Changing the G3 Battery

To change the battery, which is located on the bottom of the AED, pop it out…now there is a reference number and a lot number listed on the battery, and there is also a date. That is the date of manufacture. This battery has a 4-year full operational guarantee. That date starts as soon as you put the new battery in your AED. To do so, pop it right at the bottom of the AED.

Changing the G3 Pads

Now we are going to go over how to change the pads. For this, I am going to take the battery out so that you guys can hear me in this video while I am changing out the pads. Normally, you will want to leave that battery in at all times. To change the pads, press the button and open the lid, you unplug those, and you’ll get a new set of pads. The expiration date for these is listed in two places: one on the front and one on the back. These have a two-year expiration, so you’ll want to change those before that expiration date, or if you use your AED for any reason, you’ll need to change those pads as well. To insert the new ones, you’re going to line up the red and white to the red and white, plug it in, put that back in the little pocket, and close the lid.

Now with these devices, once you change the pads or battery, the ready indicator will stay red until it does its nightly self-test. To go ahead and change that to green, you are going to open the lid, close it right back, and the indicator will switch to green. Once you see the green indicator, you know everything is good to go and that you are Rescue Ready.

If you have any questions or need to talk about purchasing options, our number is 800-695-1209, or you can go online at 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 November 29, 2021