How Long Do Defibrillator Batteries Last? A Guide to Maintaining Your Cardiac Science Defibrillator

Defibrillator batteries play a critical role in ensuring your device is ready to respond during a Sudden Cardiac Arrest (SCA). Regular maintenance and timely replacement of batteries are essential to keep your Cardiac Science Automated External Defibrillator (AED) rescue-ready. This guide explains how long defibrillator batteries last, how to recognise when they need replacing, and tips for proper maintenance.

Battery Lifespan

The lifespan of defibrillator batteries varies depending on the model and usage. For the Cardiac Science Powerheart G5, the Intellisense™ lithium battery is designed to last up to four years in standby mode. This means the device remains powered and ready for use when not actively deployed in an emergency.

Key factors that affect battery life include:

• Frequency of Use: Delivering shocks or running extended self-tests reduces battery life.
• Storage Conditions: Extreme temperatures or improper storage can shorten battery lifespan.
• Maintenance Routine: Regular checks and prompt replacement of expired batteries ensure optimal performance.

How to Know When to Replace the Battery

Your Cardiac Science defibrillator performs regular self-checks and notifies you when the battery needs attention. Here’s what to look for:

Low Battery Alerts

• Audible Beeping: The device emits a regular beep to signal a low or depleted battery.
• Status Indicator: A red or flashing indicator light suggests the battery requires replacement.
  

Self-Test Results

During its daily, weekly, and monthly self-tests, the defibrillator assesses battery capacity. If the battery does not meet performance standards, the device alerts you to replace it.

Steps for Replacing the Battery

1. Order a Compatible Battery
   Ensure you purchase the correct Cardiac Science Intellisense™ lithium battery for your model. Only use manufacturer-approved batteries to maintain performance and warranty coverage.
2. Turn Off the AED
   Remove the old battery and inspect the compartment for any visible debris or corrosion.
3. Install the New Battery
   Insert the new battery securely. Listen for a click to confirm it is properly installed.
4. Check the Status Indicator
   The indicator should turn green after the battery is installed and the self-test is complete.

Tips for Maintaining Your AED Battery

• Store in Optimal Conditions:
  Keep the defibrillator in a controlled environment, away from extreme temperatures or humidity.
• Monitor Expiry Dates:
  Batteries have a defined expiration date, even if unused. Replace them before they expire to avoid sudden depletion.
• Inspect the Device Regularly:
  Check the AED’s status indicator weekly to ensure the device is operational and the battery is functioning correctly.
• Keep a Spare Battery:
  Having a spare battery on hand ensures you can replace it immediately if needed.

Why Battery Maintenance Matters

Defibrillator batteries are a vital part of your device’s readiness. A depleted or expired battery can delay emergency care, reducing the chances of survival during SCA. Regular maintenance ensures your defibrillator is always ready to perform when every second counts.

At defibshop, we stock a range of Cardiac Science Intellisense™ batteries and accessories to help you maintain your AED. Our team is here to provide expert advice on battery replacement and AED maintenance. Contact us today to ensure your defibrillator remains fully operational and rescue-ready.