It's been just a few weeks since Apple released its newest iPhone models and it is quite plausible that you might have already read most of the reviews about the devices. Both the new iPhone models - the iPhone 7 and the iPhone 7 Plus, are arguably the best iPhones ever made by Apple. Both the devices feature cutting edge hardware, an awesome camera, most features any smartphone users would love to have, and a very reliable, stable operating system. However, there seems to be one area where people, consumers and reviewers alike, seem to agree on. The smaller screened iPhone - the iPhone 7 - has really poor battery life. And if we are to believe a recent study carried out by a UK based consumer group called "Which?" the iPhone 7 has the worst battery performance when compared to its contemporaries.