Summary: while it isn't giving a fault LED the loud pop and the smell of dead electronics would disagree with that assessment. will post mortem this week.
Pros: does the job of a 425VA UPS...when it works
Cons: sensative. i jerked mine across the floor pulling it towards with me with a power cord. a loud pop noise issued forther, with a horrid dead electronics smell. (note: never strained the power plug feeding the unit). so it worked when left alone but he minute it was moved...blam. deadish.
Cons: Bought two of these for two different systems. Within 6 months both units started to fail more often than they would work. Most power interruptions simply cause the unit to cut power and start making a loud beep noise. Neither computer is anywhere near the maximum capacity of these units. One computer averages 250 watts and the other 170 watts.
Summary: I am disgusted with Newegg's return policy. Purchased this for $83.99 + $14.99 the service net warranty. Newegg wants me to play $32 for the shipping back on a defective unit. This is the last time time will purchase anything from Newegg. I will not recommend anyone to purchase anything from them.
Pros: Surge protection? (wasn't tested)
Cons: When running tests with computer, monitor and modem plugged into the UPS unit (running at 240-280 watts out of 450 watts), the UPS software continues to say "Remaining time insufficient." When running the self test the battery level drops from %100 to %15-%25. I do not want to take the chance with this UPS destroying my $1200 custom computer. I would like it swapped out for a working one.
Summary: Walmart.com delivered the product as scheduled. When I plugged in the surge protector alarm tone went off and the only way to stop it was unplug it. I called the manufacturer and the told me it probably had a defective circuit board and I could return it to Walmart. I returned to where I bought it and got a refund with no problem. I purchased another surge protector and did not reorder the CyberPower 800VA/450 Watt.
Summary: Had not had to use the battery backup until a power outage a few days ago. The up to 85 minutes was only about 15 with just a 15.4' laptop and modem on it so I could check the weather and news. Might add that the laptop was fully charged; just wanted to keep it that way in case power was out for a long time. It started repeatedly beeping and shut off. Unplugged charger and only ran modem with laptop just on battery and it ran maybe another 10 or 15 with only the modem.