Contact US

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!

*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

APC Smart UPS 450 - hot case- what is wrong

APC Smart UPS 450 - hot case- what is wrong

APC Smart UPS 450 - hot case- what is wrong

I have the subject UPS that has been working fine for many years.  I have replaced the batteries several times and have never had a problem.  Today the case is very hot and it smells like something is burning.  The powerchute software says all is well and the test button test also says there is nothing wrong.  Any ideas?

RE: APC Smart UPS 450 - hot case- what is wrong

This is usually caused by a failed battery, it has a shorted cell. It will swell and possibly melt.

What to do?  First, replace all the gel cell batteries in the UPS. This will usually return the unit to normal operation.

In the event the charging controller is defective or out of adjustment, it will overcharge the battery and eventually it will fail in a simlar manner.

The general rule of thumb is: if a new battery lasts less than a year or two, it's probably best to replace the UPS. On larger UPS it may be worth having a qualitified repair technician to check the unit out. Smaller UPS systems are generally not worth the repair costs.

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