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: 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: Even though the Power Panel says that the UPS is fully charged and has 18minutes of back up time - it doesn't work (on either of the two that I have). The Self Test feature of the Power Pannel cuts the power and causes my computer to reboot. A power outtage causes my computer to reboot. A power surge causes my computer to reboot.
Pros: Has 8 slots to plug stuff into.
Cons: I'm on my second one of these so far. Both have performed the same - poorly. I bought them from a local retailer, not New Egg, if it matters.
Summary: We have a MAC for personal use and a PC for business use. Both had a UPS to protect against power loss, which worked as expected, meaning it provided battery backup to allow for a smooth shutdown of the computers. However, we live in an area with frequent power outages and have a generator, which provides power to the entire house. The UPS units, however, could not accept the generator's electricity, as it was not "clean".
Pros: Adequate Power, Easy To Set Up, Quiet Operation, Reliable Performance
Summary: As the title suggests, it gives me about 20 minutes of power (without my monitor plugged into the backup, I know it won't fare well with it on there as it is a CRT). Q9450 (quadcore for those who don't know Intel's processor names). 4 GB of RAM Several HDDs (these drain power too). ATI Crossfire 2x ATI Radeon HD 3650 512 MB RAM video cards, currently running in single card mode though both are installed.
Pros: Adequate Power, Easy To Set Up, Small Footprint
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.