Go Back   Hardware Canucks > HARDWARE > Power Supplies

    
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old September 1, 2009, 09:36 PM
bovine.baron's Avatar
MVP
F@H
 
Join Date: Feb 2009
Location: Vancouver, BC
Posts: 486

My System Specs

Default Questions on Using Old UPS

I was getting an old speaker amp from the basement when I found an American Power Conversion (APC) UPS. The model number says BACK UPS 600 (BD) but it must be an old model because I can't find anything about it. I was wondering if anyone knowa about this model or brand. More importantly, what should I watch out for in general? I have no idea how old it is and it says it has a lead acid battery, which frankly I've never seen and don't really trust. I'm pretty hesitant to just plug it in but I don't want to be wasteful when it can be useful.

halp how do I evaluted safety of UPS :F
Reply With Quote
  #2 (permalink)  
Old September 1, 2009, 10:31 PM
fefox's Avatar
MVP
F@H
 
Join Date: May 2009
Location: Manitoba N50 15.5944', W101 2.2833'
Posts: 324

My System Specs

Default

before you power it up, open it up and take a look, the batteries are, "sealed lead acid" so they shouldn't leak but they sometimes do around the posts...

if you have a voltmeter check to see if they still have a bit of a charge in them, a 600va APC probably has 2 x 12v 7ah batteries wired for 24v... if you still have a decent voltage in them they might still be good enough to run the unit well,, if they are almost dead flat you will probably have to replace them.
I think a new set is about $50


so if you don't have a voltmeter but everything looks good inside, you could try and power it up, if no errors then let it charge up, once charged hook a lamp to it for a load and see how long it lasts for..

if my memory is correct there are about 6 Phillips head screws at the back side you take them all out and the UPS opens on a hinge towards the front of the ups.. so just pull up on the top part and the rear of the ups.

be careful, if the the batteries still have a decent charge that means the UPS can still make 110v so even if its not plugged in you could give yourself a bad shock..
__________________
Reply With Quote
  #3 (permalink)  
Old September 1, 2009, 10:44 PM
Perineum's Avatar
Hall Of Fame
F@H
 
Join Date: Mar 2009
Location: Surrey, B.C.
Posts: 4,040

My System Specs

Default

The "back ups" models are not true sine wave, if that matters to you....
Reply With Quote
  #4 (permalink)  
Old September 2, 2009, 01:31 AM
MpG's Avatar
MpG MpG is offline
Hall Of Fame
 
Join Date: Aug 2007
Location: Kitchener, ON
Posts: 3,144
Default

Watch out how much you try to power off of that - 600VA is probably only going to be good for around 400W. Probably not an issue with the rig in your sig, but things like a printer or monitor will go above and beyond what your actual computer PSU uses.

For a basic test run, you might consider charging it up first. Plug a lamp into it with a known wattage bulb or two, and then unplug the UPS from the wall and see how it does. If you've got a multimeter, set it to AC and see what the voltage in one of the unused outlets is.
__________________
i7 2600K | ASUS Maximus IV GENE-Z | 580GTX | Corsair DDR3-2133
Reply With Quote
  #5 (permalink)  
Old September 2, 2009, 04:00 AM
Dr_BenD_over's Avatar
Fallen Folder
F@H
 
Join Date: Jul 2008
Location: Nova Scotia
Posts: 2,418

My System Specs

Default

It's highly likely the battery(ies) are toast and will need to be replaced.
__________________
All's well that's Haswell
Reply With Quote
  #6 (permalink)  
Old September 2, 2009, 07:17 PM
bovine.baron's Avatar
MVP
F@H
 
Join Date: Feb 2009
Location: Vancouver, BC
Posts: 486

My System Specs

Default

Thanks very much guys, I'll have a look over tonight and get my Dad's (an EE) opinion, too.
Reply With Quote
Reply


Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
UPS again... zlojack Off Topic 23 February 5, 2009 10:22 AM
UPS Shipping JD Off Topic 15 December 8, 2008 11:51 AM
UPS, at it again Dr_BenD_over Off Topic 14 October 3, 2008 09:21 PM
ups question t0m Power Supplies 5 January 10, 2008 01:04 AM
UPS question the_bandit87 Networking 5 December 19, 2007 05:22 PM