UPS battery packs

Just a quick question: how long will this power a pump... like maybe a single Koralia or a return pump or something small like that?

Amazon.com: APC BACK-UPS ES BE750G 10-Outlet 750VA 120V UPS System: Electronics

What are some other options of UPS for our tanks. If im buying one, i want it to be reliable; you always get what you pay for in this hobby

 

Following. This issue confuses the bejesus out of me, since VA can't be converted to watt/hours AFAIK.

 

yeah i have no clue about the conversion or if its possible?
hopefully time to learn about UPS...

 

My 1400VA powers my return pump rated at 30watts and my heater rated at 200 watts (I plug and unplug this so it doesn't waste the battery) gets me about 36 hours of run time. I just know this from letting it run till the battery died. The newer version of mine.

APC UPS are great and I always recommend them. Mine is currently attached to my comp, but come winter it will be back on my tank.

FYI: the UPS you linked is 450watts.
Scroll down for mins vs load graph.

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BE750G

 

Well, VA is fairly simple to convert to watts, once you know the power factor of the backup unit. I think they're usually between .9 and .98.

It's converting the raw watts number to watt/hour that I'm not sure of.

 

It is always best to use the manufacturer's site.

APC Power Saving Back-UPS ES, 10 outlet, 750VA, 120V

 

Good call, xmetal. Too bad it stops at 45w load though.

 

wait, im slightly confused... the graph on your webpage says that it will last approx 71.5 minutes but you can get 36 hours out of it? can you please explain...

 

Black: the graph increases. an estimate is better than a complete guess and hoping ones math is correct.

Dingo: the link is not my exact one. Mine has two batteries instead of one like the one i linked to.

 

He has a 1400VA power supply, you're looking at a 750 VA power supply. That implies a difference of almost double the run time. The efficiency also matters, so the higher VA unit might have a better efficiency at low wattages.