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Manufacturer
Model
What This Guide Helps With
Addresses battery not recognized or replace battery alerts, focusing on correct battery type, installation, contact issues, and power-related external causes.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Confirm the AED is not in active clinical use.
- If needed, replace with a backup unit before troubleshooting.
Power Cycle the Device
- Turn the AED off and back on.
- This resets basic system checks and may clear a temporary battery recognition fault.
Verify Correct Battery Type
- Ensure all installed batteries are **123A lithium batteries** approved for the AED Plus.
- Do not use AA batteries or other chemistries—incorrect type will trigger recognition errors.
Check Battery Installation Orientation
- Remove and reinstall all batteries, ensuring correct polarity.
- Even one incorrectly installed battery can cause the alert.
Inspect Battery Compartment Contacts
- Visually inspect for corrosion, debris, or bent contacts.
- Clean minor corrosion with a dry cloth if present.
- Poor contact prevents proper voltage detection.
Replace All Batteries as a Set
- Install a full new set of fresh 123A lithium batteries.
- Do not mix old and new batteries.
- The AED evaluates the entire battery pack; uneven voltage can trigger alerts.
Check Battery Date Codes
- Ensure batteries are not expired or near expiration.
- Older batteries may not provide stable voltage even if unused.
Confirm Battery Compartment is Fully Seated
- Ensure the battery cover is properly closed and latched.
- Improper closure can interrupt battery contact.
Observe Indicator Status
- After reinstalling batteries, check the “Rescue Ready” indicator.
- Green check indicates the issue is resolved.
- Red X or audible alert indicates the problem persists.
Run Self-Test (if applicable)
- Allow the AED to complete its automatic self-test or initiate one if available.
- This confirms whether the battery is accepted by the system.
If the Problem Persists
If the device continues to display battery not recognized or replace battery alerts after verified new 123A batteries and proper installation, common external causes have been ruled out. The issue is likely internal (battery contact assembly, power regulation circuit, or internal sensing fault). Remove the device from service, label it Out of Service, and send it for repair or bench evaluation.
Clinical Use Tip
Never troubleshoot a defibrillator on a patient-ready unit. Always swap with a confirmed functional AED before beginning any battery-related checks to maintain therapy continuity.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"AED Plus displaying 'Replace Battery' alert despite recent 123A battery replacement."
Cause
What was observed during troubleshooting.
Example:
"Incorrect battery type or corroded battery contacts preventing proper voltage detection."
Resolution
What action was taken.
Example:
"Installed new set of 123A lithium batteries, cleaned contacts, and verified green readiness indicator."
Helpful Details to Include (If Known)
- Alarm or alert behavior observed
- Batteries replaced as a full set of 123A lithium
- Battery orientation verified
- Contact condition (clean or corroded)
- Indicator light status (green or red)
- Audible alerts present or cleared
- Environmental or storage conditions
- Final device status (returned to service or sent for repair)
Final Thought
Battery-related issues on the AED Plus are often simple but critical. Start with the correct 123A battery type, installation, battery quality, and contact integrity before assuming failure. Proper escalation protects both patients and equipment reliability, and clear documentation ensures traceability.
That is successful troubleshooting.