UPS Battery Tester

What's the easiest way to load test a UPS? Is there a portable device that's out there (hopefully cheap) that I can use to test multiple UPSes at an office to make sure they will last long enough during a blackout?
LVL 10
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

try using this to calculate what they SHOULD be giving you.
Choose the "configure by load" option.
A simple and cheap load is all you need.  Attach lightbulbs of known wattage to an extension cord and see how long the UPS lasts.  You can add or remove bulbs to match your expected load.
Get Blueprints for Increased Customer Retention

The IT Service Excellence Tool Kit has best practices to keep your clients happy and business booming. Inside, you’ll find everything you need to increase client satisfaction and retention, become more competitive, and increase your overall success.

Use NetWatch to monitor it is better than testing them: 
victornegriAuthor Commented:
I need to figure out if any of the UPS batteries are failing. The lightbulb suggestion is the closest to what I'm looking for. How many lightbulbs will I have to attach to simulate the draw a desktop computer + workstation + laser printer uses?

Each computer is connected to their own UPS (via a serial cable). They're tiny UPSes and don't have an SNMP card built in. I need to figure out whether these UPSes work or whether I should recommend to my client to purchase new ones. Trying to get some hard numbers.
>How many lightbulbs will I have to attach to simulate the draw a desktop computer + workstation + laser printer uses?

My desktop has an Athlon64 X2 3800+, Radeon X850XT, NEC 3540A DVD burner and 5 hard drives.  The Kill-A-Watt says it draws 200 watts at startup and levels off at 140 watts.  CRT monitors take about 100 watts, while LCDs take about 50 watts.  A workstation may take twice as much as a desktop.  I would not recommend running a laser printer off a UPS, as that draws the most power, perhaps 600 watts or more and most UPS manufacturers warn you not to connect them.
victornegriAuthor Commented:
So 3x 100 watt lightbulbs?
300 watts for a desktop; 600 watts for a workstation, so 3 x 100 watt bulbs for the first and 6 x 100 watt bulbs for the second.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
victornegriAuthor Commented:
Cool. Thanks.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.