The Best Uninterruptible Power Supply (UPS)

Most people can get through a household power outage without much hassle. Chances are, by the time you find the spare flashlight batteries and break out the board games, your lights and television will already be back on.

But if you want to keep your home Wi-Fi network and some other key electronics up and running in the event of an outage, an uninterruptible power supply, or UPS, is worth the investment.

The CyberPower CP900AVR is the best UPS for people who want to back up a few small electronics—such as a modem, router, PC, external hard drive, or game server—during a blackout lasting up to four hours. It offers many of the same premium features found in pricier models, including battery backup for up to five devices and surge protection on all 10 of its outlets.