How to Avoid Draining the Battery on Your Defibrillator

When every second counts, your defibrillator must be ready to save a life. One of the most common issues that can render a defibrillator useless in an emergency is a drained battery. Fortunately, with a few simple precautions and routine maintenance, you can ensure your device is always ready when needed.

Here’s how to prevent your defibrillator's battery from draining prematurely:

1. Perform Regular Checks

Most defibrillators perform automatic self-tests daily or weekly and do not need to be turned on, but don’t rely solely on automation. Schedule regular visual inspections to check:

Battery status indicators
Expiry dates on pads and batteries
Any warning lights or alert signals

Tip: Keep a checklist and set a recurring reminder to check the device at least once a week.

2. Store in a Controlled Environment

Extreme temperatures can drastically reduce battery life. Avoid placing your defibrillator in locations that are:

Too hot (e.g. in direct sunlight or near radiators)
Too cold (e.g. in vehicles during winter)
Humid or damp, which can also damage electronics

Tip: Aim for a dry, room-temperature environment. Outdoor cabinets should be temperature-regulated.

3. Minimise Unnecessary Activations

Every time the device is turned on or performs a self-test, it uses battery power. Avoid:

Repeatedly powering it on “just to check it”
Allowing untrained individuals to tamper with the unit

Tip: Use the manufacturer’s recommended test procedures—usually there's a way to check battery status without fully powering up.

4. Replace Batteries Before They Expire

Even if not in use, batteries degrade over time. Most defibrillators have:

A “use-by” or “install by” date
A recommended shelf life

Tip: Keep a record of the battery's expiry date and replace it ahead of time. Don’t wait until you get a low battery alert.

5. Use Manufacturer-Approved Batteries

Only use batteries approved by your defibrillator’s manufacturer. Generic or non-approved batteries may not hold a charge properly or could damage the device.

Tip: When purchasing replacements, verify they come from an authorised supplier.

6. Keep the Defibrillator in Its Case

A good-quality case or cabinet protects the device from dust, damage, and accidental button presses that could activate the unit and drain the battery.

Tip: If your defibrillator is publicly accessible, make sure it’s in a secure cabinet with clear instructions and signage.

In Summary

To keep your defibrillator’s battery healthy and ensure it’s always ready in an emergency:
✅ Check regularly
✅ Store properly
✅ Avoid unnecessary use
✅ Replace batteries on time
✅ Use approved components

A well-maintained defibrillator can be the difference between life and death. Take these steps seriously, and your device will be ready to perform when it’s needed most.

Need help maintaining your defibrillator or replacing the battery?
We’re here to help – from checks and servicing to replacements and training, just get in touch.