sporcanm

This review is from: Xantrex Technologies 852-0400 XPower PowerSource 400-Watt Back-up Power Solution (Lawn & Patio) This is basically a standard UPS with three exceptions.

First, it is not intended for use on computers and thus does not have a USB connector to tell your computer to shut down when the power goes out.

Second, and most importantly, its battery capacity is about 6 times that of a standard UPS. For instance, the Tripplite 700 UPS has a 7aH battery, which will provide 400 watts of power for about 7 minutes. This unit has 2 20aH batteries, for a total of 40aH, and should provide 400 watts for about 35 minutes. My big screen, Onkyo surround system, and satellite dish draw about 200 watts, so in an outage, I can probably watch TV for an hour. If my PVR alone is left on, it can run for 5 hours or longer.

Third, this unit has a power meter on it, so you can tell exactly how many watts you are drawing.