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Manufacturer
Model
What This Guide Helps With
Battery charging, detection, unexpected shutdown, poor runtime, AC-power problems, battery connection issues, aging batteries, or charging-system faults.
Step-by-Step Troubleshooting
1. Protect the Patient and Maintain Therapy
If the pump cannot reliably operate on battery and patient transport or AC interruption is possible, replace it with a verified pump before troubleshooting.
Expected outcome: Patient therapy does not depend on uncertain battery operation.
2. Confirm the Exact Battery Complaint
Determine whether the battery is not detected, will not charge, charges slowly, reports full but runs briefly, discharges rapidly, or causes shutdown when AC is removed.
Expected outcome: The battery failure mode is clearly identified.
3. Verify the AC Source
Connect the pump to a known-good grounded outlet. Confirm the outlet is functional using an appropriate method and inspect the power connection for secure engagement.
Expected outcome: Reliable AC power reaches the pump. If charging resumes after correcting the power source, continue verification and stop once normal charging is confirmed.
4. Inspect the Power Cord and External Connections
Check the cord, plug, strain relief, and accessible power inlet for damage, looseness, contamination, or overheating.
Expected outcome: The external power path is physically intact. Damage requires removal from service.
5. Observe Charging and Battery Indicators
With the pump connected to AC, observe whether the expected battery/charging status appears and whether the device recognizes the battery.
Expected outcome: The battery is detected and charging status behaves normally.
6. Allow Appropriate Charging Opportunity
If the device has been stored discharged, connect it to AC according to normal facility handling practices before judging runtime. Do not assume an immediate failure from a deeply discharged battery alone.
Expected outcome: Battery status improves and stabilizes. If it remains absent or unchanged, continue troubleshooting.
7. Inspect Accessible Battery Interfaces if Authorized
If the battery is user-accessible under facility procedures, inspect the battery and accessible contacts for swelling, leakage, corrosion, contamination, loose fit, or physical damage. Do not open the battery pack.
Expected outcome: The battery is physically intact and properly seated. Any swollen, leaking, overheated, or damaged battery requires immediate removal from service and appropriate battery handling.
8. Reseat or Substitute a Known-Good Battery if Approved
When permitted and without internal disassembly, reseat the battery or test with a known-good compatible battery.
Expected outcome: If the pump charges and runs normally with the known-good battery, the original battery is suspect and should be replaced through the approved process.
9. Perform a Controlled Battery Runtime Check
Outside patient use, allow the pump to operate on battery under an approved test condition and compare performance to the facility's accepted service criteria or manufacturer guidance.
Expected outcome: Battery operation meets applicable acceptance criteria. Do not invent or substitute an arbitrary runtime threshold.
10. Check AC-to-Battery Switchover
While the pump is operating in a controlled non-patient test, disconnect AC and confirm the device continues operating normally on battery without unexpected restart or shutdown.
Expected outcome: The pump transitions reliably to battery power.
11. Verify Recovery to AC Charging
Reconnect AC and confirm normal operation continues and the charging indication returns.
Expected outcome: AC and battery operation transition normally in both directions.
12. Perform Final Functional Verification
Confirm battery detection, charging, AC operation, battery operation, switchover, and applicable battery performance testing before returning the pump to service.
Expected outcome: Battery performance is reliable. Any unresolved short runtime, intermittent detection, overheating, or shutdown requires removal from service.
If the Problem Persists
Common external causes including bad outlets, damaged power cords, poor battery seating, depleted batteries, and a defective replaceable battery have been ruled out. Persistent symptoms may involve the charging circuit, internal power distribution, battery communication, connectors, or service-level power electronics.
Remove the device from service, label it Out of Service, and send it for repair or bench evaluation. Use approved Fresenius Kabi service documentation and appropriate test equipment. Internal power-system repair should be performed only by qualified personnel.
Return to service only after applicable electrical safety, charging, switchover, battery, and functional testing is complete.
Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Do not send a pump on transport when battery runtime or AC-to-battery switchover is uncertain.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Nursing reported that the Ivenix pump showed a charged battery but shut down shortly after being unplugged for transport."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering confirmed the installed battery had severely reduced runtime while the pump operated normally with a known-good battery."
Resolution
What action was taken.
Example:
"Replaced the battery through the approved process, verified charging and AC-to-battery switchover, completed battery performance testing, and returned the pump to service."
Helpful Details to Include (If Known)
- Battery symptom reported
- AC outlet tested
- Power-cord condition
- Battery detected or not detected
- Charging indication
- Battery physical condition
- Known-good battery comparison
- Runtime test result
- AC-to-battery switchover result
- Applicable acceptance criteria used
- Final charging status
- Final device status
Final Thought
Battery complaints should be separated into AC-source, battery, connection, and charging-system causes before internal failure is assumed, with transport safety and verified switchover given particular attention.
That is successful troubleshooting.