Anyone know of anything similar to a Smart Battery Case for the 7 Plus or 8 Plus? I have a 6S with the Smart Battery Case and I really like it. The battery life has been great with the extra battery and the way it is integrated with all of the iOS functions and lightning cable keeps it simple. I never have to fiddle with switches, remember to turn it on, or carry a different type of cable. Does such a thing exist for the 7+/8+? Most of the ones I see are MicroUSB, the Lightning ones don't seem to support Lightning headphones. Thanks.