Question about UPS

[MohsinMan99]

What is the main factor that determines the performance of a UPS? Is it the VA rating, the number of batteries or something else?

Someone recommended a friend of mine to buy a "double battery" UPS as it supposedly gives more backup time than single battery UPS no matter the rating. Is this true?

 

[topgear]

look at VA rating of the UPS and get decent brands like APC.

 

[MohsinMan99]

^Does the number of batteries has nothing to do with performance?

 

[d6bmg]

Quality of battery determines the backup time. UPS rating determines the max amount of load that can be given to that UPS.

 

[ithehappy]

Yes, battery quality and VA, and of course APC.