Users of smartphones are always complaining -- despite huge advancements in battery technology over the past few years -- about the need to recharge devices frequently. A new form factor from British firm Intelligent Energy could potentially change this to only having to recharge a phone on a weekly, rather than daily, basis. The company has placed a hydrogen fuel-cell battery into an iPhone 6 as a proof-of-concept, with only tiny changes to the casing for the device.
