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 ...

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, ...

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 ...

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 ...

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

Watching your phone or tablet steadily run out of power when you're nowhere near ... about phone battery tech and what types of portable chargers are most worth your money. Our picks below cover ...

These days, "small" portable batteries have a capacity of around 5,000mAh, which means they easily fit into your pocket and still have enough power to ... wirelessly on Qi chargers (7.5W) and ...