Battery is the biggest concern in smartphones especially in apple devices. If you play games or use internet for 2 continuous hours that’s it charge drains out. To overcome this problem Apple plans to use hydrogen batteries allowing iPhones iPods and ipads to hold a charge for WEEKS. The company hopes to use hydrogen cells to produce lighter batteries that could last for weeks.
The company is staying on the cutting edge as they have recently submitted applications for patents to create new energy sources for their products. The filings that the company submitted seem to have rather bold promises of allowing electronics to run for days or weeks with one time charge.