I'm looking for an decent quality UPS with a decent quality battery for a single Linux personal computer. So far, most power outages here have been very short--power lost for mere seconds--so I'm not concerned about continuous running on battery for even several minutes.
The monitor is always off since this is primarily accessed remotely from other boxes. The laser printer is usually on standby, and the PC is pretty much a standard desktop with two hard drives, a network card, and little else.
The ability for the PC to shutdown automatically would be nice, but it's not required since I expect the power to come back up long before the battery runs out.
What would be nice would be to know how long to expect the battery to last, and if it's worth replacing the battery for the inexpensive ones or just buy another cheap unit next year or the year after.
In the past, I've spent $10 on each of these after rebate; nowadays, the lowest price I'm seeing is close to $40-$50.