H aving a great portable power bank on hand is an absolute must in this day and age. Batteries are better than ever, but your ...

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...

Power output determines the overall power of your portable battery pack. In other words, the stronger the power output, the faster your devices will charge. We recommend looking for power banks ...

This is why I have always been a fan of the Anker 733 Power Bank. It works as both a wall charger and a portable battery pack. It also helps that it is currently on sale for just $69.99.

Phone cases promise to double battery life. Consumer Reports tests them, as well as a portable battery pack, a solar-powered charger and a crank charger.