this post was submitted on 11 Jul 2023
27 points (96.6% liked)

Selfhosted

40113 readers
914 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
 

I have a low power NAS (~35W) and I want to buy an UPS (uninterruptible power supply) to keep things running. The problem is most UPS for well known brands have an idle power usage (even without load) greater than 20W. It's comprable with the NAS + HDDs + Network equipment....

Do you know any alternative? UPS battery for 10 minutes will be enough. UPS load could be very low < 50 W. UPS software is optional.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

Thank you for the link but I can't see the unloaded power consumption in the specifications.

I read about different UPS topologies and the model you suggested is "standby", the most power efficient => https://unifiedpowerusa.com/ups-topology-optimal-environment/

But some users report the "Cyberpower ValueUPS 600" (similar model) consumes - idle with nothing connected - 20W exactly

[–] [email protected] 4 points 1 year ago

As far as I know the idle power varies from implementations to implementations, especially regarding charging. Also the idle power tends to grow when the battery ages (as the internal resistance increases).

If you are interested in the APC one, it does not hurt shooting them an email asking for the rated idle power usage. From my experience, APC has been pretty eager to respond.