Powerheart G3 AED & Accessories

The Powerheart G3 is a workhorse automated external defibrillator (AED) built by Cardiac Science for the moments that matter most. If you're maintaining a G3 in a workplace, gym, school, or clinic — or replacing consumables to keep it rescue-ready — this collection brings together the pads, batteries, and support items that keep the unit compliant and reliable.

The two questions most buyers arrive with are simple: is my device still ready to save a life, and what do I need to replace? Powerheart G3 models are known for their Rescue Ready status indicator and automatic self-tests that check the battery and electronics daily, so you know at a glance whether the unit is good to go. When something falls out of date, it's almost always one of two things — the defibrillation electrode pads or the battery.

Pads have a defined shelf life and must be swapped by their expiration date to guarantee proper adhesion and energy delivery. Batteries, too, degrade over time and after use, so tracking install dates matters for readiness. Keeping fresh consumables on hand means your AED passes its self-checks and performs when a bystander opens the lid.

Whether your G3 lives in a wall cabinet in a lobby or travels in a first-responder bag, matching genuine, compatible replacement components to your specific model number is the safest path — mismatched pads or batteries can compromise a rescue. Check the label on your unit before ordering, and rotate expiring supplies before they lapse.

Looking for a similarly named but entirely different product? You may be after our EvenCare G3 blood glucose monitoring collection instead. Otherwise, browse the Powerheart G3 essentials here to keep your defibrillator rescue-ready year-round.