UPS question

[mr pink floyd]

Considering this UPS
http://www.circuitcity.com/ssm/APC-...77693/catOid/-13011/rpem/ccd/productDetail.do


• 550VA/330W output
• 65 minutes of backup

• Eight outlets
• Battery alarms


id use it to run my koralia, and a MJ 400 probably, how long do you think it could run these for? total watts by the pumps are 17 watts


thanks

 

[ZrC]

You might be able to get an hour if you are lucky. This UPS is a higher priced, http://www.newegg.com/Product/Product.aspx?Item=N82E16842102048 should be able to give maybe 3+ hours.

 

[cd77]

Hi Mike,

First I'm positive you can get that unit for much less -- check pricegrabber or eBay for starters. The unit ZrC mentioned is a little better. NewEgg is an excellent a good retailer, also check ZipZoomFly.

You may want to read this recent thread on RC regarding UPS devices and generators for power losses. The question I have is why you need it. Most tanks will be fine for a few hours during a power loss, with the first concern being O2 issues -- in which case you can spend a fraction of what you're looking to spend for one of these.

 

[allengy]

That APC UPS might not reliably run your Koralia. I had a Koralia plugged into a bigger model from APC and it worked fine when I first plugged it in and tested it. When the power went out you could see the Koralia trying to start but wouldn't quite turn over. I contacted APC and they told me those models were designed to back up electronic equipment, not motors. They said I needed a UPS that output true sine wave or something like that. For that APC line, that would be the SmartUPS 750 and above. I found a remanufactured SmartUPS 1000 from a link someone posted here and that one runs the power heads.