Hello guys. I've recently bought http://www.microcenter.com/product/449053/1000VA_UPS_with_LCD_Display for protection and backup of my PC/monitor. When I plug it in and run it with or without my PC the voltages it reads is between 117-120, mostly 118 though. I was under the assumption that UPSs clean power to achieve 120v or run off of the battery continuously at 120v and only need to be plugged in to charge said battery. I know tolerances are +/-5% so from 114-126v it's within spec. But is it normal for it reading 117-120 on my ups itself? I'm curious and hopeful there isn't any issues with electric and hope someone might be able to answer. Sorry if this is the wrong place to post this. I was not sure which was best for this question. Thanks!