Apple will turn to an LG-devised layered lithium ion battery design manufactured by Samsung SDI, LG Chem and Tianjin Lishen Battery for the powerpack in its so-called iWatch, a questionable report out of Korea suggests.





"Apple will utilize LG Chem's stepped battery since it offers better longevity than others and can be applied for different shapes," a source told the Korea Herald. LG's stepped design is said to hold up to 16 percent more energy than similarly-sized conventional lithium ion batteries.

In addition to their enhanced energy density, the stepped batteries can be formed into shapes — Â like curves — Â that would suit a wrist-worn device.

The report should be taken with a grain of salt, however. The Herald intimates that Apple was also considering powering the device entirely with solar power — Â other rumors have suggested Apple may be considering solar charging, but none have speculated that the company may eschew batteries entirely.