A new breakthrough has made long-lasting lithium-oxygen batteries more viable.
Sony is working on a sulphur-based battery technology that could mean more juice, or thinner phones.
Apple's CEO claims the iPhone 6S and iPhone 6 battery case is for longer trips, and isn't an admission of terrible battery life.
In DepthWhy do some batteries die faster than others? We peer under the hood and explain why some struggle to last a day.
Samsung plans to develop denser batteries and slimmer camera sensors for more efficient, better-looking devices.