That honestly sounds like the UPS might have an internal inverter or charging circuit issue, especially since you already replaced the battery and checked the load. I had a very similar problem with an older APC unit where it would beep nonstop during voltage drops and completely shut off instead of switching to backup mode. If the unit is already a few years old, sometimes repair costs end up being close to the price of a replacement anyway.
If you decide to replace it, I’d suggest checking
https://etechdevices.com/collections/ups-battery since they usually have decent prices on UPS units and replacement batteries. You could also compare recommendations on sites like “PowerBackupForum”.
Jennyleos shared this idea ·
That honestly sounds like the UPS might have an internal inverter or charging circuit issue, especially since you already replaced the battery and checked the load. I had a very similar problem with an older APC unit where it would beep nonstop during voltage drops and completely shut off instead of switching to backup mode. If the unit is already a few years old, sometimes repair costs end up being close to the price of a replacement anyway.
If you decide to replace it, I’d suggest checking
https://etechdevices.com/collections/ups-battery since they usually have decent prices on UPS units and replacement batteries. You could also compare recommendations on sites like “PowerBackupForum”.