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Asset Type
Manufacturer
Model
What This Guide Helps With
Identifies causes when batteries fail to charge, discharge quickly, or are not recognized by the charger, affecting tool readiness for surgical procedures.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm no active surgery is dependent on the affected tool. Move patient care to a backup system or alternate tools if necessary.
Inspect Power Source and Charger
- Verify the wall outlet is live using a multimeter or known-working device.
- Check the charger for damage, loose connections, or blown fuses.
- Expected Outcome: Charger powers on and shows normal indicator lights.
Examine Battery and Contacts
- Remove the battery and inspect contacts for dirt, corrosion, or damage.
- Clean contacts with a lint-free cloth or isopropyl alcohol if needed.
- Expected Outcome: Clean, undamaged contacts improve connection reliability.
Swap with Known-Good Battery
- Test the charger with a fully charged, known-good battery.
- If it charges correctly, the issue is likely with the original battery.
- Expected Outcome: Confirms whether the battery or charger is at fault.
Test Battery on System Tool
- Insert the battery into a System 7 tool and verify operation.
- If the tool shows low battery or fails to operate, the battery may be defective.
- Expected Outcome: Tool operates normally with a functioning battery.
Check Battery Age and Cycle Count
- Review battery label or system log for age and number of charge cycles.
- Batteries beyond manufacturer’s recommended life may not hold charge.
- Expected Outcome: Identify batteries requiring replacement due to end-of-life.
Inspect Charger Indicator Lights and Error Codes
- Refer to Stryker documentation for specific charger LED/error behavior.
- Expected Outcome: Visual indicators may point to battery or charger faults.
If the Problem Persists
External causes (power, contacts, charger, and battery cycle life) have been ruled out. The device should be:
- Removed from service
- Labeled Out of Service
- Sent to Biomedical Engineering or vendor for bench evaluation
Knowing when to stop avoids unsafe or unnecessary attempts at internal repair.
Clinical Use Tip
- Never troubleshoot batteries during an active procedure.
- Keep spare, fully charged batteries available in the OR.
- Always confirm backup systems are ready before testing.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Battery fails to charge and does not hold power."
Cause
What was observed during troubleshooting.
Example:
"Battery contacts were corroded and battery exceeded manufacturer’s cycle life."
Resolution
What action was taken.
Example:
"Cleaned contacts, replaced battery with a new, fully charged unit; verified operation on tool."
Helpful Details to Include (If Known)
- Outlet tested and functional
- Charger tested with known-good battery
- Battery contacts inspected and cleaned
- Charger LED behavior noted
- Battery age and cycle count
- Final device status: operational or replaced
Final Thought
Patient safety is paramount—tools must be fully operational before surgery. Start troubleshooting with the simplest, verifiable external factors, escalate appropriately, and document all findings to prevent future delays.
That is successful troubleshooting.