Video: How to get the most from your smartphone battery

The new iPhone is slimmer and faster than ever. But like most new generations of smartphones, its battery has pretty much stayed the same over the years. Short of carrying an external battery all the time, is there any way ...

Apple announcements: iPhone 7, Mario game, new watch

At Apple's iPhone 7 unveiling in San Francisco on Wednesday, the tech powerhouse revealed a host of new and updated hardware and software, including a new type of headphone jack and souped-up camera. Here's a rundown of the ...

New low-cost battery could help store renewable energy

Wind and solar energy projects are growing at a respectable clip. But storing electric power for days when the air is still or when the sun goes down remains a challenge, largely due to cost. Now researchers are developing ...

For batteries, one material does it all

Engineers at the University of Maryland have created a battery that is made entirely out of one material, which can both move electricity and store it.

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