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APCUPSD (APC UPS Daemon) can be used for power mangement and controlling most of APC's UPS models. Apcupsd works with most of APC's Smart-UPS models as well as most simple signalling models such a Back-UPS, and BackUPS-Office. During a power failure, apcupsd will inform the users about the power failure and that a shutdown may occur. If power is not restored, a system shutdown will follow when the battery is exhausted, a timeout (seconds) expires, or runtime expires based on internal APC calculations determined by power consumption rates. Apcupsd is licensed under the GPL version 2.

What's New

Version 3.14.8:
  • Major update to win32 version of apctray. Includes many visual and usability improvements to match OS X version.
  • apctest now supports battery calibration and self-test interval control on USB models. Many thanks to James Belleau for contributing these features.
  • New SNMP driver that does not require libsnmp.so, thus eliminating issues with not finding the more...


  • Mac OS X or later
  • APC UPS battery backup system.

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APCUPSD User Discussion

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Pfoomer Member IconReview+79

This software works well, I use it on my two serial ups's , where it was cheaper to by a serial-usb adapter and when required, a new battery pack, instead of buying a newer usb based ups.

Provided you follow the instructions carefully, it should be possible for anyone to achieve this.

If you have migrated from windows where your interaction with the terminal was probably non-existant, well now is the time to find out there is much more to a unix system than the gui

Reply0 replies
Version 3.14.8
Reddog99 Member IconComment+18

If you're not comfortable with the concept of 'building' your own applications and editing configuration files to alter your preferences, then this app is not for you. I gave it a stab and (probably) failed. I was never sure if I had it installed right. Worst of all, I can't figure out how to uninstall the program...

Reply4 replies
Version 3.14.7

Yes, not easy to install and configure. I did so but reverted back to Apple's UPS pref pane. Uninstalling this app was difficult. Good app if you need what it offers.


How do you uninstall it?


Instructions for uninstalling APCUPSD from Mac OS X:



And let me add that everyone is correct, this program is definitely not for newbies. It is intended for sysadmins who manage multiple servers, not desktop users to play around with. The built-in energy settings of Mac OS X are all that 99% of people need to handle their UPS. This app is for the other 1%.

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> 5 1


Current Version (3.x)


Downloads 3,750
Version Downloads 2,744
Type Utilities / Backup
License Free
Date 04 Jan 2010
Platform OS X / PPC 32 / Intel 32
Price Free