The iPhone 7 version of Apple's smart case comes with a battery that is 26 percent larger than the iPhone 6S edition, with a bump from 1,877 mAh to 2,365 mAh, The Verge reports.

Given that the iPhone 7 has a 1,960 mAh battery, Apple probably wanted the battery case to actually be able to fully charge your iPhone, and it added in a little extra juice for fun. Apple says the smart battery case combined with your fully charged iPhone can give you 22 hours of internet use over LTE or 26 hours of talk time, which is enough juice to get even the most ardent user through an entire day.

With the Smart Battery Case on, the intelligent battery status is displayed on the iPhone Lock screen and in Notification Center, so you know exactly how much charge you have left, Apple's own discription of the case reads on its website.