If your singular concern is phone battery life and you want to spend as little money as possible, this $20 power bank is your ...

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 ...

Since space is such a big concern when I commute, I really love that I can just bring one charger that can work with all of ...

Also called power banks, portable chargers come in all shapes and are meant to charge all different sizes of device. Most of 'em will charge your phone, but the larger ones will revive your tablet, ...

Some of the best power banks can charge your smartphone in under 70 minutes. The most sluggish can take almost three and a half hours. How our tests find you the best Number of charges Portable ...

Make sure you check out our best portable chargers and power banks guide if you want power while you're on the go, or our best phone battery life rankings if you'd like to know which handsets can ...

Portable power has so many interpretations. You probably haven't seen anything like this mini 40,000mAh battery pack from ...