2008 Wrap Up: iPhone 3G Teardown
Fig 1: The Li-polymer secondary battery bonded with the back cover of the chassis. The battery capacity was not indicated on the iPhone 3G's Li-polymer secondary battery, which was made in China. The battery cell was directly wrapped in a laminate film, without casing of plastic or any other material. It was fixed on the back cover of the chassis with adhesive tape. The W-CDMA/GSM main antenna on a flexible substrate was positioned at the lower part of the chassis. The sub antenna at the upper part of the chassis was made of metal and seemed to support wireless LAN, Bluetooth and GPS.