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Worst part about UPS that i didn't know was: The constant humming (no fan, just electrical) so cant sleep in same room The loud can't turn it off beeps when p

Worst part about UPS that i didn't know was: The constant humming (no fan, just electrical) so cant sleep in same room The loud can't turn it off beeps when power is out. And none of those come in the product description.

wtracy 6y ago
You can silence the alarm by pulling the battery connection. Obviously, that's inconvenient if you want the UPS to be useful again as soon as the power comes back. I personally like the white noise from electronics, so I can't help you there.
SyneRyder 6y ago
There is a way to turn off the beeps on the APC UPS line (at least the ES 700 I have), but it involves installing software that comes with it onto a Windows machine, connecting to the UPS via USB and changing the settings. It's enough of a pain to do that rather than configure all 3 UPS devices in my house, I've only ever gotten around to doing it on one. Can't say I've noticed the electrical hum, except during a blackout. But I don't have mine in a bedroom.
- _rs 6y ago
  Newer models have a button you can press and hold to toggle the alarms without plugging into a computer.
  - deleted 6y ago
    [deleted]
robbyt 6y ago
The hum is caused by cheap or warn lamination on the transformer. I recently "fixed" an older APC by opening it, removing the large transformer, coating the fins in nail polish, and adding rubber washers to the mounting screws.
jlgaddis 6y ago
> The loud can't turn it off beeps when power is out. That depends on the UPS, it seems. I have a pair of Back-UPS 1500s with the external battery packs. They have a button on the front-panel for disabling/enabling the audible alarm (just hold it down for 2s, IIRC).
quesera 6y ago
When the power goes out on an APC UPS, just press and hold the "On" button until it chirps. Alarms are silenced. Now imagine the sound at the APC factory, when the power goes out and thousands of UPSes on the charging racks start beeping in sync...! (this is not a hypothetical)

wtracy 6y ago

You can silence the alarm by pulling the battery connection. Obviously, that's inconvenient if you want the UPS to be useful again as soon as the power comes back. I personally like the white noise from electronics, so I can't help you there.

SyneRyder 6y ago

There is a way to turn off the beeps on the APC UPS line (at least the ES 700 I have), but it involves installing software that comes with it onto a Windows machine, connecting to the UPS via USB and changing the settings. It's enough of a pain to do that rather than configure all 3 UPS devices in my house, I've only ever gotten around to doing it on one. Can't say I've noticed the electrical hum, except during a blackout. But I don't have mine in a bedroom.

_rs 6y ago
Newer models have a button you can press and hold to toggle the alarms without plugging into a computer.
- deleted 6y ago
  [deleted]

robbyt 6y ago

The hum is caused by cheap or warn lamination on the transformer. I recently "fixed" an older APC by opening it, removing the large transformer, coating the fins in nail polish, and adding rubber washers to the mounting screws.

jlgaddis 6y ago

> The loud can't turn it off beeps when power is out. That depends on the UPS, it seems. I have a pair of Back-UPS 1500s with the external battery packs. They have a button on the front-panel for disabling/enabling the audible alarm (just hold it down for 2s, IIRC).

quesera 6y ago

When the power goes out on an APC UPS, just press and hold the "On" button until it chirps. Alarms are silenced. Now imagine the sound at the APC factory, when the power goes out and thousands of UPSes on the charging racks start beeping in sync...! (this is not a hypothetical)