I bought a ups (Digital X 1200 VA) from ryans almost a year ago, which now has approx. 13 days of warranty still remaining. At first, I used to get reasonable backup time from it (approx 20-30 mins), but then it slowly started to go down to only 10 mins. And now I don't even get 10 seconds of backup from it. Also to note- a faint buzzing noise comes from it when it's on battery. I'm thinking the battery is just dying, but never expected it to die out within just a year. I'll be taking it to ryans tomorrow. Any idea what I can expect from them? Can they replace it, or I have to buy a new one?