Some iPhone 4S users complained that the speed of battery consumption is too fast. A user who once contacted apple said, “My battery is pretty bad, stand one hour drop of 10%. i think there might be some programs running in the background, leading to power down too fast. I closed all the new features, including Siri and Geolocation Service, the problem is still not resolved. I also tried pure version of the settings, not use any program, the problem remains.”
Apple began the investigation of this problem immediately. Up to now, Location Services in iOS 5 system is considered to be the main reason leading to the excessive power consumption. More and more users find, even if no location or time zone mobile, the ”setting the time zone” module of system service in Geolocation Service also has been turned on. Settings icon can display the last 24 hours of the service is being used, can be found even in the absence of any change in position, it will continue to obtain the position information of mobile phone.
Geolocation Service can result most smartphones have the rapid consumption of the battery. By using a combination of Wi-Fi network name, mobile wireless data and GPS sensor input data, to calculate the location of the cell phone. Among them, the mobile wireless data is by comparing three nearby cell phone antenna signal strength calculated. Since these calculations have been repeated, resulting in excessive loss of battery power.
People in Apple’s support forum still discuss about the issue, but the company has not made any official comment on this. If you also have such battery problem, you may try to turn off the function, Click on “Settings -> Location Sevices -> System Sevices -> Time Zone Settings”. Hope this can solve your problem.