Forget about an iPhone 5 yet. Analysts predict that the next apple iPhone is gonna be the iPhone 4GS, no LTE, no WIMAX and absolutely no iPhone 5 yet sorry for the disappointment .. the good news is that apple will broad its horizons making its iPhone available to Sprint and T-Mobile. Hopefully we'll see this by the end of the year..
The new technology has been uncovered in a patent by AppleInsider, which looks at increasing the power density in batteries - essentially keeping the same volume while improving the amount of juice inside.
This is achieved using a "multi-step constant-current constant-voltage (CC-CV) charging technique", which is science-speak for 'more sparky, same size-y'.