unsupported UPS

I'm thinking I should buy a UPS (I have just about everything else I need for my computer. Either that or maybe a NAS). Anyway... Now if I buy an unsupported UPS I guess it will just work until the batteries go flat. So it will cover power dips and short outages. I'm happy with that and I don't want to stuff around with interfaces and controlled shutdowns for long outages (never happens here). Bonus if it is suported, but... So will any old UPS (with suitably rated V/A to last a $short period) do that for me? I'm thinking the "KSTAR BM3150 1500VA" which may actually be supported, but I don't want to care. Shane.