Per medtronic summary provided to center, of the 5 batteries sent for review, 4 had identified concerns.One battery was incorrectly reading total capacity (b)(4).Two batteries (b)(4) demonstrated internal circuit failure causing no power output to the controller or an ability to charge when connected to battery charger.The final battery (b)(4) demonstrated a solder defect which causes no power output to the controller or ability to charge when connected to the battery charger.Fda safety report id# (b)(4).
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