Although being able to dramatically change the way Apple’s mobile operating system works by performing a jailbreak on the device is extremely beneficial and can result in a positive way to the user, some iOS device owners have also stated that they have noticed significant downsides to jailbreaking. One of these reported downsides is battery drainage, and while it may be true in some instances that running multiple intensive substrate tweaks can lead to degraded battery life, users of non-jailbroken devices on any version of iOS 5 have also noticed less than adequate battery performance.