Is there a downside to plugging my equipment into battery backup instead of directly into an outlet? The house I am living in does not have grounded outlets (only renting so feel no need to upgrade this). I have a Liebert battery backup from my server room at work- it kept a Dell server up with a switch for an hour. I was thinking about plugging my 36XBR800, B&K preamp, and Aragon 8008X3 into it. What do u guys think?