UPS battery packs

I just bought a cyberpower 850VA a couple weeks ago for this purpose. Went with it because it was on sale at Fry's for $59 after rebate. I'm only using it to back up a Evo 1050 PH. I have not tested how long it will run for.

http://www.frys.com/product/5470679?site=sr:SEARCH:MAIN_RSLT_PG

 

It's a discontinued model as it's about 7 years old. Sorry.
Great thing about it is the replacement battery is a standard 12v 7ah battery. Costs about $15 on ebay. As long as it continues to function, I'll continue to buy replacement batteries for it. I've only just recently replaced the original battery.

If you go with a UPS for under $80 or 700VA, make sure it weighs at least 11 pounds as the smaller UPS's usually use a lighter battery (12v 3.6AH for example) and this will dramatically reduce the run time. The 12v 7AH battery weighs almost 6 pounds by itself, so if you see a total weight of say 8 lbs for a UPS, you know it doesn't have a very good battery in it.

 

very attractive price! is the rebate thing still going on? I might pick this one up

 

and reeron, you seem to know much more than me about UPS... do you approve of the above-linked unit? it has a 8.5AH battery and is 850VA

 

I think it was one week only... sorry.

 

For that price, I want one.

I have the Cyberpower 1285AVR with LCD display for my computer and love it. Bought it at Buy.com when it was on sale for less than $100 shipped. Will absolutely buy it again when it goes back on sale (whenever that may be) as I want to hook my tank lights up to it for their own protection. The 850 model would be a great choice for using with power-heads and/or a return pump, but contrary to what the literature says, they are not hot swappable. Still very easy to replace, just requires you to power it down and unplug everything from it to do a battery replacement. If you can remove a couple of screws and lift a 5lb battery, then you can do the battery replacement. It's really that easy.

If you can, get one with a built in LCD display as you will never go back to a non-LCD unit once you see the LCD unit in action. Real nice being able to see all pertinent information at the touch of a button, without the need for the software or a computer.