These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile Analyst at PCMag, which means I cover wireless phones, plans, tablets, ereaders ...

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

There’s how much power your power bank can hold, how fast it charges your device, and the number of ports. Usually a high-capacity power bank will let you charge your device several times ...

Prior to Polygon, she worked at publications such as The Verge. Anker’s latest, and perhaps best power bank features a 25,000 mAh capacity and puts out a combined wattage of 165 W. That’s ...