Sitting here working during a thunder storm, I am reminded of the necessity of a UPS. UPS stands for uninterpretable power supply, for those periods usually during thunder storms when the power may flicker or even go out. If the power just flickers these battery units will keep your computer going, instead turning your computer off in them middle of whatever it is doing. These battery power units can not run your computer for long, so if the power stays off you should power down or turn off your computer. This unit, only slightly larger than a outlet strip, can sit on the floor out of the way. I always plug my UPS into a good outlet strip with surge protection, I don’t know if it helps but it can't hurt.
Since laptops have batteries so they do not need UPS protection but should have surge protection when possible. A good UPS will also provide surge protection. -> Read more