Cardiac Science Powerheart AED G3 Battery (9146-302)
The Cardiac Science Powerheart G3 Battery (9146-302) is made for G3 AED units. It provides reliable power and keeps track of performance with IntelliSense technology. The battery supports Rescue Ready.
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Verified 2026 authorized US distributor pricing. Bundle pricing often 8-12% lower.
Both authorized US distributors. Full manufacturer warranty. Authentic pads + batteries.
Technical Specifications.
- 🎯 The Editorial Verdict
The Cardiac Science Powerheart G3 Battery (9146-302) is made for G3 AED units. It provides reliable power and keeps track of performance with IntelliSense technology. The battery supports Rescue Ready functionality. It performs regular self-checks to keep the AED ready for sudden cardiac emergencies. It includes a four-year operational guarantee. This supports the advanced life-saving features of the Powerheart G3 system.
Original PowerHeart G3 AED Replacement Battery
The original PowerHeart AED G3 battery provides reliable lithium power. It lasts up to four years from the manufacturing date, which is clearly marked on the unit for easy tracking. Recycle the battery at an approved facility after use. This supports safe disposal practices.
This Intellisense lithium battery is intended for use with the following Powerheart G3 defibrillators:
- 9300E
- 9300A
- 9390E
- 9390A
The G3 AED device conducts daily self-tests to ensure that the software, hardware, pads, and battery are always in working order. If your current battery is nearing its expiration or losing sufficient power, your device should alert you to the problem. We recommend keeping a spare battery on hand to ensure that your defibrillator is always emergency-ready.
The Cardiac Science Powerheart G3 battery (P/N 9146-302) is the authorized replacement for the Powerheart G3 series of automated external defibrillators. Note: this is NOT compatible with the current Powerheart G5 — the G5 uses a different battery. Verify your AED model before ordering. Authentic Cardiac Science inventory from authorized U.S. distributors only.
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⚡ Plan Your FRx Deployment
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Step 2
Cost Calculator
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- ⚖️ Head-to-Head
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- Also Consider
Related FDA-approved AEDs.
- Common Questions
Frequently asked questions.
How long will G3 batteries be made?
ZOLL (current Cardiac Science owner) typically maintains legacy accessory supply for 5–7 years after a platform retires. The G3 is in legacy-support mode now, so G3 batteries (part 9146-302) remain orderable but supply windows will narrow over the next several years. Plan a G5 platform upgrade within 24 months for mission-critical G3 fleets. Bridge-refill with G3 batteries during the transition; don’t make 5+ year procurement plans assuming G3 battery availability.
G3 vs G5 battery — interchangeable?
No — G3 (9146-302) and G5 Intellisense batteries have different connectors and chemistry. They are NOT interchangeable across the platforms despite both being Cardiac Science / ZOLL branded. Forcing the wrong battery onto either device will damage the connector and may damage the device itself. For mixed G3 + G5 fleets, stock both battery families separately and label cabinets clearly. Plan a G5 upgrade migration so you can eventually standardize on a single battery SKU.
- Verification & Sources
Every FRx spec traces to a primary source.
FDA 510(k) P180028
Philips HeartStart FRx approval verification
Philips Healthcare
Official product documentation + specifications
AED Leader
Current 2026 US retail pricing reference
American Heart Association
CPR + AED placement guidelines
American Red Cross
Pediatric AED guidance (under 8 / 55 lbs)
AEDBB Methodology
Full editorial framework · 4 primary sources · monthly verified