Apple has just released a slew of new products and services for its legions of fans, among them the updated mobile platform, iOS 9. The new version came with a number of tweaks and improvements for different Apple mobile devices, including the promise to extend the battery life of iPhones and iPads, particularly the older versions of the devices.

However, reminiscent of the concerns regarding previous Apple updates like the iOS 8 last year, some users have reported that instead of having longer battery life with the iOS 9, power drainage seems to have become a bigger problem. 

What Apple users have begun to realize is that although the new iOS version did promise to eke out the battery life for at least another hour, the setting would still need to be manually checked, particularly after the update. Having different programs like chat apps running in the background or turning on the "always on" feature for Siri will eventually drain the battery. 

In addition, the new power-saving feature called Low Power Mode should also be manually turned on. With the mode turned on, automatic device activities and performances that consume power would be limited. For example, with Low Power Mode on, users who have auto-mail notification updates will switch to manual refresh, and background apps not needed at the moment will be closed. Furthermore, iPhones and iPads that are always on data will have reduced network speeds to conserve power. 

There is also the issue of some older versions not being compatible with the new iOS. Although Apple considers the iOS 9 to be compatible with at least the iPhone 4s and iPad Air/ iPad mini versions, users who own some older-gen Apple products like those that have been tweaked with a jailbreak version may find that updating to the new platform will slow down and limit device performance rather than the other way around. Ultimately, downgrading to the most previous version is the key.