Check the active battery indicators. Look for a green blinking light or a specific “ready-to-use” symbol. If the light is red or the symbol isn’t present, your battery is likely dead.
Listen for beeping. If an AED is beeping, it’s a sign of a malfunction or low battery.
Check expiration dates. Expiration dates are commonly found on each device.
If the battery is dead, you can properly dispose of it here.
You can also order a replacement AED battery here.