iOS 9 introduces a new saving -energy mode!

For all those who can not get through the day with the battery of your device, iOS 9 includes a new power saving mode. Batteries thank.

Once activated, iOS disable all functions that require more energy, some of which, said Craig Federighi, don't even know exist. In this way our iPhone will have up to more 3 hours of battery life to perform the most basic operations and efficient in terms of resources used.

It is very important that new users have long been waiting.