Cardiac Science Powerheart AED G3 Battery 9146-302 (Yellow)

Cardiac Science Powerheart AED G3 Battery 9146-302 (Yellow)


What is Cardiac Science Powerheart AED G3 Battery? The 9146-302 model battery is the replacement battery for the Cardiac Science Powerheart G3 AED Device. Cardiac Science AED batteries are durable, hassle-free, and feature a 4-year warranty.

Once installed in your Powerheart G3 PLUS AED, the Cardiac Science G3 Battery performs a daily self-test to ensure the unit is in working order and operable.



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How to change Cardiac Science Powerheart G3 Battery and Pads 9146-302

Cardiac Science AED G3 Battery Overview

Genuine Powerheart G3 AED batteries are tested rigorously at Cardiac Science.

  • Essential to have for effective AED use
  • Durable- 4-year full operational replacement guarantee
  • Hassle-free

A functioning battery is one of the key components of an AED (Automated External Defibrillator). Without a working battery, an AED will not be operational or effective as a life-saving device. The 9146 replacement battery is for use with the Cardiac Science Powerheart AED G3 and G3 Plus in both semi-automatic and automatic models (Model Numbers: 9390A, 9390E, 9300E, 9300A) that were built after April 12, 2004.

Cardiac Science G3 Battery Expiration Date

The 9146-302 battery has a “manufactured on date” printed on it. This means you have a 5-year shelf life (new and uninstalled). The expected expiration date is 4 years from the date you install your battery as long as you install the battery within 5 years of the manufacture date. The battery must be replaced after use.

Who Manufactures the Original Intellisense Battery for the Cardiac Science Powerheart G3?

The Cardiac Science Powerheart G3 batteries are produced by Cardiac Science, which is a subsidiary of ZOLL.

Why is my Powerheart AED G3 Beeping?

Your Powerheart AED G3 may be beeping due to the pads and/or batteries being expired. The ‘STATUS INDICATOR’ on the AED will be RED when the daily, weekly, or monthly self-test determines maintenance is required.


The Powerheart AED G3 replacement battery is one of the longest-lasting batteries on the market. It has a life of 4 years if never used. Because this battery is non-rechargeable, it needs to be discarded after 4 years of non-use. It is important to recycle it when discarding the battery because it is lithium.

The replacement battery for the CS Powerheart G3 AED comes with a 4 year, fully operational replacement guarantee from the date of installation. The warranty covers battery defects and does not cover normal battery wear. The battery also comes with a no-risk, 30-day money-back guarantee and free shipping.


The Cardiac Science Powerheart AED G3 performs automatic daily and monthly checks on all of its components, including the battery. This means routine maintenance checks are not required. The Powerheart G3 holds a data chip that records daily and monthly maintenance tests. These records can be programmed to automatically send diagnostics to a computer so you can easily check on the status of your replacement battery.

Cardiac Science® PowerHeart® AED G3 Replacement Battery Specs

In 2011, a study done by the Annals of Emergency Medicine showed that 1 out of 4 unsuccessful AED attempts was the result of a battery malfunction. To maintain the safest environment in defense of a Sudden Cardiac Arrest (SCA), it is recommended to keep a replacement battery on hand, in case the primary battery fails. AED replacement batteries should be kept close beside their respective AED. It’s important to have a spare set of replacement AED pads on hand as well. carries both adult and pediatric electrode pads. Get Cardiac Science G3 AED Pads Here.

  • Chemistry: Lithium battery Sealed Li-SO2 (Lithium Sulfur Dioxide)
  • Should not be kept in temperatures exceeding 122 degrees Fahrenheit, or 50 degrees Celsius.
  • Alternate Part Numbers: 9146-002, 9146-102, 9146-202

Track your AED program’s compliance with our AED Accutrack monitoring system.