I found brand new EATON 9130i Rack Mount 2000 VA 1800 Watt UPSs with 2 yr warranty on eBay for $400. Can't beat that.
So you can put one miner on a UPS. You have also increased its ROI time by 3 months. Thats like 1700 hours of hashing to pay for the UPS that will in its lifetime prevent maybe 6 hours of downtime?
I am so not understanding where you people think this is a good idea? Its like you are looking for ways not to ROI
Well maybe they have terrible power quality.
Here in NJ they rebuilt a lot after Hurricane Sandy so I get 121-122 at mains and 243 for 240 power.
All my wiring was done by me other then the main box.
My home was built during Vietnam war. USA was short copper and I had all aluminum wires. Many 1966-1973 built homes in
NJ were done with aluminum. I replaced 100% of the wires in the 90's Well before BTC came around.
A homeowner in NJ can do their own wiring if they continue to live in the home.
Since I was saving a lot of money DIY I did every upgrade with better guage wires.
So all my 12 gauge 15 amp circuits are 10 guage 20 amp circuits
I get very little power drop.
I put in a whole house surge protector.
I consider those upgrades to be far better to do then to buy lots of UPS gear.
We can go 6 months with no power failure as the norm.