Today I let the phone and case drain down completely - to the point where the iPhone shut down. Using a 30w USB-C Lightning connection, these are the times it took to charge. What's really interesting is that with USB-C, the case and phone charge in parallel.
1hr
- iPhone 85%
- Smart Battery Case 79%
1hr 15 mins
- iPhone 93%
- Smart Battery Case 90%
1hr 24 mins
- iPhone 96%
- Smart Battery Case 96%
1hr 30 mins
- iPhone 97%
- Smart Battery case 98%
1hr 32 mins
- iPhone 98%
- Smart Battery Case 100%
1hr 40 mins
- iPhone 100%
- Smart Battery Case 100%
Update:
When I left the iPhone unattended all night, by 10:30 am, the battery had dropped by 10%. I think this because I had Dark Sky constantly using Location Services. I'm also going to make it a practice now to have the XS Max on Low Power Mode unless I'm away from the house and keep Bluetooth disabled. This is because I have my computer and iPad, should I need them.