AP9631 detbat -all E101 Command Not Found

[falcon.dv]

UPS Smart RT 6000 XL

An input power failure has occurred. After power is restored UPS is showing errors.
apc>detstatus -all
E000: Success
Status of UPS: Internal Fault Bypass, Inverter Fault, No Other Alarms Present
Last Transfer: No transfers have occurred
Runtime Remaining: 1 hr 17 min
Battery State Of Charge: 23.0 %
Output Voltage: 237.6 VAC
Output Frequency: 50.0 Hz
Output Watts Percent: 16.0 %
Output VA Percent: 10.0 %
Output Current: 2.56 A
Input Voltage: 237.6 VAC
Input Frequency: 50.0 Hz
Battery Voltage: 192.2 VDC
Internal Temperature: 25.7 C, 78.2 F
Self-Test Result: Invalid
Self-Test Date: 07/09/2024
Calibration Result: Not Available
Calibration Date: Unknown

Batteries are 7 - years old. The batteries are not being charged after power is restored

Schneider Electric Network Management Card AOS v7.1.2
(c) Copyright 2023 All Rights Reserved Smart-UPS & Matrix-UPS APP v7.1.2
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Name : apc9BDCD7 Date : 07/10/2024
Contact : Unknown Time : 08:02:16
Location : Unknown User : Super User
Up Time : 0 Days 11 Hours 16 Minutes Stat : P+ N+ A+
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apc>detbat -all
E101: Command Not Found

[Teken]

Based on the active faults / error log you have a couple of serious problems. Primarily an inverter fault, followed by a bypass fault. 

Given the batteries are seven years old they are well past their expected service life of 3-5 years.

I would start by replacing the battery cartridges, reset the unit. Power up the unit to see if the inverter fault clears which I highly doubt.