Many power stations show you remaining battery life on their displays, but that’s only useful once you’ve got everything plugged in.

GREENSBORO, N.C. — Whether it’s a hurricane, an ice storm, or even a wildfire, power outages seem to be happening more often and in more places. Maybe you’re thinking about buying a generator to keep ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When the power goes out, and you’re not sure when it will come back on, knowing how long your power ...