It is best when you have something that can do things simultaneously. It is to save you money and time trying to look for things that serves different purposes. Moreover, you will have to bring them around with you all the time. A different situation can be said when it comes to battery cases. A battery case is simple a protective case that is equipped with a battery pack. Now you are able to protect your iPhone 8 Plus, and at the same time, it is powered up all throughout the day.