Hardly one month after its release, the iPhone 4S users have come up with a battery drain problem. Some of the iPhone 4S users have posted complaints about battery draining too fast. The problem is described as follows, “ iPhone 4S users have seen a 10 percent drop in battery life each hour, even if it is in the standby mode”. Whereas Apple says that the battery will last for 200 hours in standby mode.
When contacted, the Apple’s customer services told that they are still trying to find a solution to fix the problem. Some suspect siri as the main culprit. But there is no real improvement after switching off features including siri and location services. If you contact Apple about this issue, an engineer will call you back and will ask a series of questions. After that he will ask you to install an activity monitoring file, that’s all, nothing more. The problem still persists and is very frustrating.
Latest news is that, a bug in location services is suspected to be the real culprit. A fault in Apple’s location services in iOS 5 software can be the reason. The "Setting Time Zone" element of the Systems Services within the broader Location Services product seems to be operating even when there is no chance that the user would have moved to a different location or time zone. An icon beside the setting, which indicates whether it has been used in the past 24 hours, suggests that it is running repeatedly to access the phone's location even when there is no apparent reason to do so.
As of now, Apple hasn’t opened its mouth on this issue and the problem still persists. It is very disappointing that Apple engineers are not able to find a solution and this will definitely affect their reputation. I think we won’t see an answer from them soon, even though I would have loved to.