Cardiac Science G3 AED Battery

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Benefits of the Cardiac Science® PowerHeart® AED G3 Replacement Battery

  • 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 any 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.


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 which 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 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