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.
Summary: Came home from work after a bad Arizona Monsoon storm. I heard a clicking from this UPS. It had died in the line of duty to protect my computer system. It was worth the purchase price. It saved me about 3k for my computer system. Looking to replace it now and also get one for my HDTV/Stero system also.
Summary: This is the 2nd one of these I have purchased as the first one took a lightening hit and no longer was able to use. It did however, protect my computer, printer and phone. So it did it's job well.