Worried about a blackout causing you to lose all your work? A UPS will keep your computer running, but there's something very important you should know.An Uninterruptible Power Supply, or UPS, is basically a large battery designed to keep your equipment running should the power go out. It's a handy idea, but don't expect miracles if you're shopping on a budget. How long will a UPS keep you running? Every UPS comes with a "VA rating" (Voltage-Amps) which tells you how much gear you can connect to it and roughly how long it will keep running after the power is cut. As a rule of thumb, you should multiply it by .6 to ...
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