We have been using Moment snap-on attachments for the iPhone that turn your ordinary stock camera into a high-quality DSLR lens for a while now. The concept took off with a vengeance, raising millions of dollars in the process before the products release into market. Now, they’re back with a battery case for the iPhone that is compatible with the Moments lens, providing extra juice – and time – to get the shot just right. Aptly named the Battery Photo Case, it’s about the same size as the well-known Mophie Juice Pack though Moment’s version doubles the phone’s battery life. It’s possible thanks to the 2,500mAh battery cell inside the piece for the iPhone 7. However, the case for the iPhone 7 Plus gets even beefier with a 3,500mAh battery slip on. The case also works with the iPhone’s dual lens setup with two mounting slots on the case for simplified adjustability. The Battery Photo Case is also compatible with Moment’s macro, fisheye, wide-angle, and telephoto lenses. It’s currently available for reservation on Kickstarter and is slated to retail for $100.