MAUDE Adverse Event Report: DEFIBTECH, L.L.C. LIFELINE; AUTOMATED EXTERNAL DEFIBRILLATORS

Model Number	DDU-A2450
Medical Device Problem Code	Premature Discharge of Battery (1057)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The customer initially reported a service code, review of the aed's internal log files determined that the service code after battery replacement was due to the previous battery fully depleting within the unit.Analysis of the aed's log files identified that the customer's failure to promptly address red asi warnings reduced battery life expectancy.On 12/17/25 the aed identified that the aed battery was getting low and attempted to alert the user by flashing its red asi and chirping.The aed continued to flash and chirp until 1/29/26 when the battery pack became completely depleted.There was no evidence in the electronic logs of any human interaction to address the aeds condition until 3/24/26 when a replacement battery pack was inserted into the aed and the aed powered on.
Event or Problem Description
A customer reported that upon inserting a new battery pack, their aed powered on and prompted a service code.The customer did not report this occurring during patient use.

• Brand Name: LIFELINE
• Common Device Name: AUTOMATED EXTERNAL DEFIBRILLATORS
• Manufacturer (Section D): DEFIBTECH, L.L.C.; 741 boston post rd.; suite 201; guilford CT 06437
• Manufacturer (Section G): DEFIBTECH, L.L.C.; 14 commercial st.; branford
• Manufacturer Contact: nissa soto ; 741 boston post road; suite 201; guilford, CT 06437 ; 2034536654
• MDR Report Key: 25571633
• Report Number: 3003521780-2026-00959
• Device Sequence Number: 15708326
• Product Code: MKJ
• UDI-Device Identifier: 00815098020287
• UDI-Public: (01)00815098020287
• Combination Product (Y/N): N
• Initial Reporter State: TX
• Initial Reporter Country: US
• PMA/510(K) Number: P160032
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 06/20/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Model Number: DDU-A2450
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 05/22/2026
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/01/2026
• Initial Report FDA Received Date: 06/20/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/11/2019
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Unknown
• Patient Sequence Number: 1
• Patient Sex: Unknown