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.
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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.