Know that you always have a backup if your iPhone battery gets low with the best power banks as tested by our CNET tech expert. Executive Editor David Carnoy has been a leading member of CNET's ...

If you go to Settings -> Battery on your iPhone, you can see a lot of stats about the performance and health of your battery. This includes a charge graph that plots the battery percentage of the ...

Meet the Stage PowerGrip, a magnetic battery pack designed to evoke the look and feel of a traditional camera except with all of the modern trimmings you'd expect from an iPhone accessory.