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    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Controller_fault_LED_on_due_to_CMOS_battery
      Node reports P3V battery status as "critical low" on SP-LATEST-IPMI: Fault Lights On: P3V Batt critlow 0 mV 2100 mV 2200 mV 3400 mV 3500 mV Coin cell reports FRU LED is lit FRU LED ID 01 = PCM FAULT L...Node reports P3V battery status as "critical low" on SP-LATEST-IPMI: Fault Lights On: P3V Batt critlow 0 mV 2100 mV 2200 mV 3400 mV 3500 mV Coin cell reports FRU LED is lit FRU LED ID 01 = PCM FAULT LED FRU LED ID 03 = SYS FAULT LED FRU LED ID 41 = Coin Cell FAULT LED FRU LED ID 1 is on FRU LED ID 3 is on FRU LED ID 41 is on Node reports Real Time Clock (RTC ) battery as dangerously low [?] env_mgr: monitor.rtcLowPower:error]: Real-time clock battery is dangerously low.