The iPhone 6, whose release is expected sometime next year, is being supposedly revamped to include a new charging method, according to some experts.

The Wall Street Journal (WSJ) has revealed many details about the next iPhone, dubbed iPhone 5, whose release is expected in September. Quoting a reliable source, WSJ said the next iPhone will be thinner and lighter with 8-megapixel camera.

And Hon Hai, the iPhone maker, said that they plan to make 25 million units of the device by the end of 2011, though the new iPhone is complicated and difficult to assemble.

According to the same report, People briefed on Apple's plans said the company is planning a major iPhone revamp then, with one person saying the company has been experimenting with features such as a new way of charging the phone.

Though there's no further details about the new charging method for iPhone 6, yet from the filings for a range of alternative charging methods, some indication of Apple's plans can be drawn. In an Apple patent filing published last year, an iPad dock with inductive coils is included. And Apple has already looked into induction charging of iOS devices through non-contact based platforms.

iPhone 6 are expected to be charged without USB, but by connecting over the Thunderbolt port.

WSJ also disclosed some details about the hot rumor that Apple is making a less-expensive phone, which might have new features like an edge-to-edge screen.

Last week, Deutsche Bank analyst Chris Whitmore predicted that Apple will release a $349 contract-free iPhone later this year.

However, other analysts and media outlets are not affirming whether the cheaper iPhone will really be launched.