Apple's iOS8 is out now - and it has some great real-world features that you'll actually use - like letting you save battery life.
It turns out Apple has been listening to your concerns, and has provided a number of new ways to save and monitor your battery usage in the new OS - even if you don't have one of the big new iPhones with the amazing battery life.
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We've collected some of those big tips in the video below. There are more tips here, and in the videos that follow.