amazing how you still can undercut long familiar standards: While the battery is charging, the iPhone 4S, and is even before loading it. But in contrast to the older, but half as expensive in Dexim Leather Protective Case (!!!) to the predecessor iPhone 3GS (!!!), the charging current is no longer directly connected through the iPhone4s battery, nor can the iPhone 4s in this battery-protection Case remain, to synchronize it in directly in iTunes. In practice, ie: Always load the battery case, then recharge the iPhone with the charged battery. Then the whole Geraffel must be taken apart again to synchronize the iPhone with iTunes, which is also stiff to remove the iPhone then to then connect via cable to the Apple computer for iTunes syncing. A totally impractical and repeatedly annoying procedure, in which we may well question which product developers may construct a bullshit. Too bad about it (sacked) money.