After the serious problems of theiPhone antenna 4, the new Apple smartphone seems to face seriousproblems of autonomy. The iPhone 4S is far from offering theself-announced , including 8 hours of talk time (3G) and 200 hoursstandby. The reason would be, according to the Guardian , in anoption enabled in the settings of the phone.
In fact, thesmartphone active by default the time zone setting, and itconstantly, and seeking the battery excessively. To disable thisoption, you must go to the tab General> Location Services>System Services (at the bottom the menu). Must then uncheck thesecond box, called "Def.time zone. " Only drawback, theclock of the iPhone will not be up to date automatically each timezone change of the user.