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What This Guide Helps With
Troubleshoots charging failure or reduced battery runtime caused by AC power, battery seating, battery condition, connections, or operating environment.
Step-by-Step Troubleshooting
1. Protect Patient Care Before Battery Testing
Do not troubleshoot an unreliable battery while the SonoSite PX is supporting a procedure where unexpected shutdown could affect patient care.
Connect to reliable AC power when appropriate or provide another verified ultrasound system before testing.
Expected outcome: Clinical care is not dependent on a system with uncertain battery operation.
2. Confirm the Exact Battery Complaint
Determine whether the reported condition is:
- Battery does not charge
- Charging indication is absent
- Battery percentage does not increase
- Battery drains unusually quickly
- System operates only on AC
- System shuts down when disconnected from AC
- Complaint affects one battery or all installed batteries
Expected outcome: The charging or runtime problem is clearly defined and can be reproduced or objectively evaluated.
3. Verify the AC Power Source
Confirm the system is connected to a verified working receptacle and that accessible power connections are secure.
If used with a powered cart or dock, verify the external cart/dock power path is properly connected.
Expected outcome: Reliable AC power is available to the system. If charging resumes after correcting the external power source, the issue is resolved after verification.
4. Inspect the Battery and Battery Area
Inspect accessible battery components for:
- Swelling
- Cracked housing
- Contamination
- Damaged contacts
- Loose seating
- Evidence of overheating
Do not continue charging or using a visibly damaged or swollen battery.
Expected outcome: The battery is physically safe and correctly installed. Unsafe batteries are removed from service according to facility battery-handling procedures.
5. Reseat Accessible Battery Components
With the system safely shut down as appropriate, remove and reinstall only batteries designed for normal external access.
Confirm they latch or seat fully.
Expected outcome: The system recognizes the battery and normal charging indication returns. If reseating corrects the issue, complete runtime and charging verification before returning the system to service.
6. Observe Charge Status Over Time
Connect the system to verified AC power and observe the battery status.
Determine whether the indicated charge level increases rather than relying solely on the presence of a charging symbol.
Expected outcome: Charge status progresses normally. If charge indication is present but capacity does not increase, continue troubleshooting.
7. Compare With a Known-Good Compatible Battery
If an approved known-good compatible battery is available, substitute it without changing internal components.
Compare:
- Battery recognition
- Charging behavior
- Ability to operate away from AC
- Runtime trend under similar operating conditions
Expected outcome: A known-good battery operates normally. If it does, the original battery is the likely service item and may be replaced according to approved procedures.
8. Consider Operating Load and Environment
Confirm that the reported short runtime is not being influenced by obvious operating conditions such as:
- High display brightness
- Extensive peripheral use
- Continuous heavy imaging workflow
- Battery starting from a partial charge
- Very hot or cold storage or operating conditions
Do not change clinical configuration solely to mask a deteriorated battery.
Expected outcome: Runtime concerns are evaluated under a reasonable and repeatable operating condition.
9. Verify Operation on AC and Battery
Once charging has occurred:
- Confirm stable operation on AC
- Disconnect AC under controlled conditions
- Confirm continued operation on battery
- Observe battery status for unexpected rapid decline or shutdown
Expected outcome: The system transitions between AC and battery operation without interruption and battery status behaves consistently.
10. Complete Final Functional Verification
After battery correction or replacement:
- Verify normal startup
- Confirm battery recognition
- Confirm charging indication
- Confirm basic ultrasound imaging
- Verify operation away from AC
- Check for unexpected shutdowns or battery warnings
Expected outcome: Charging and battery operation are reliable. Troubleshooting can stop when battery performance is acceptable under the facility's approved verification method.
If the Problem Persists
If AC power, battery seating, physical condition, known-good battery comparison, and operating conditions have been ruled out, the remaining issue may involve the internal charging system, power management, battery communication, cart power path, or another service-level fault.
The device should be:
- Removed from service if reliable battery operation is required
- Labeled Out of Service
- Sent for repair or bench evaluation
- Evaluated using appropriate Fujifilm SonoSite documentation and approved test equipment
- Repaired or configured only by qualified personnel
Do not open battery packs or troubleshoot internal charging circuitry at board level.
Complete appropriate functional and electrical safety verification following service.
Knowing when to stop external troubleshooting and escalate is proper troubleshooting.
Clinical Use Tip
Do not depend on a questionable battery for mobile or procedure-room use where AC power may not remain continuously available.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported that the SonoSite PX battery discharged rapidly and would not support normal mobile use."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found one installed battery had poor runtime while a known-good compatible battery operated and charged normally."
Resolution
What action was taken.
Example:
"Replaced the affected battery, verified charging and battery-powered operation, completed basic imaging checks, and returned the system to service."
Helpful Details to Include (If Known)
- Battery charge indication
- Initial and observed battery percentage
- AC source verified
- Battery physical condition
- Battery seating
- Known-good battery comparison
- AC-to-battery transition result
- Unexpected shutdown behavior
- Cart or dock involvement
- Operating environment
- Final battery and device status
Final Thought
Battery troubleshooting should separate external power, battery seating, battery condition, and actual runtime behavior before an internal charging fault is assumed. Verify dependable operation and document what was found.
That is successful troubleshooting.