Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Harsh Environment UPS

Harsh Environment UPS

Harsh Environment UPS

Does anyone have suggestions for a harsh environment UPS unit? In June, I recorded a maximum of 118ºF and I am sure the temp drops below freezing in the winter. The current UPS, a PowerWare9125 lasted about four years before expiring recently. Some manufacturers will not even quote a unit to go into this location, any suggestions or help would be appreciated.


RE: Harsh Environment UPS

What about improving the UPS room condition? That will give you more choices. Other possibility could be to install the UPS in some other room and run the proper power lines to and from this new location.
Keep in mind that extreme temperatures produce important damage in batteries (high temperature short battery life and back-up time; while low temperature also reduces back-up time).


Electro-mechanic Engineering

RE: Harsh Environment UPS

Thank you for your reply. The room is the base of a water tower. Neither the city nor my company wants to pay for heating/cooling of this space. We did consider an environmental cabinet (Liebert Foundation), but it costs less to replace the UPS every four years. The PowerWare unit did hold up well in the poor environment. We will replace it with another if there are no other options out there on the market.


RE: Harsh Environment UPS

Well, if budget is the only concern and the powerware performance is good enough, then, you could keep that strategy.
But, you, the city and the company should make sure that the unit was really working properly and not just holding-on under normal conditions. Working below 32 F, is not recommended for the battery bank at al. If a power problem happens that day, the UPS could fail or hold for shorter time than expected. Same about high temperatures; solidstatecontrolsinc.com have some unit rated 50 celsius, but it is not a good idea to expose the unit to that temperature ll the time.
You should balance budget and risk.

Electro-mechanic Engineering

RE: Harsh Environment UPS

You might do some basic climate control on the room, since there is AC power - have a vent fan that would kick in when the temp exceeds say 80F, and a small electric heater that would turn on when the temp drops below 45F. You're just trying to protect against extremes, not keep a hospital room in a narrow temp band....

Fred Wagner


RE: Harsh Environment UPS

Just remember though. Although your UPS will be fine under these wide temperature variations >Your battery will not.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close