Cardiac Science Intellisense Powerheart G3 Lithium-Ion Battery – 9146-302


This tag indicates that at least one version of this item or unit is in-stock and will ship quickly once it passes a quality inspection by our biomedical technicians. Our 40,000 sq. ft. warehouse has many in-stock units and accessories ready to join the frontlines of healthcare.

The OEM replacement battery for the  Cardiac Science Powerheart G3 AED Defibrillator by Cardiac Science. An aftermarket alternative is available here.


The Cardiac Science Intellisense Lithium Battery is used in the Powerheart G3 models.  This non-rechargeable lithium battery has an estimated 5-year shelf life (from date of manufacture), and a 4-year full operational replacement guarantee from date of installation. It will operate up to 290 shocks at full charge.

The battery technology offers advanced capabilities including an integrated memory chip that stores important usage information and maintains a complete history of its operating life.  This battery history can be reviewed using the RescueLink software.  Powerheart AEDs include  a Diagnostic Panel with a SMARTGAUGE battery indicator status. The LED display gives a quick visual of the battery capacity at all times.  This indicator screen has 5 LEDs – 4 green and 1 red.  The 4 green LEDs display the remaining battery capacity, similar to a fuel gauge.  As the battery life decreases, these 4 LEDs gradually extinguish one at a time.  When the red LED illuminates, it is time to replace the battery.  Once the red LED illuminates, a voice prompt will state “Battery Low.”

The AED is still capable of delivering at least 9 shocks at this point. Storing batteries outside of the temperature range will decrease the battery life.  As with all batteries, please dispose of them properly and in accordance with state and federal laws.

Compatible Units

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    Cardiac Science Powerheart G3 AED Defibrillator – Recertified

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Weight 1 lbs
Dimensions 8 × 8 × 8 in