Sorry I couldn't keep the phone in the case and take the pictures lol.
I just read about this: iPhone 6 6S Battery Case SOLEMEMO Ultra Slim Charging Case External Battery Case Portable Charger for iPhone 6 6S 4.7 inches with 2400mAh (Black) https://www.amazon.com/dp/B0197NDBG...ag=hawk-future-20&ascsubtag=UUimUvbUpU2678348
It's slim and lightning cable. I've never seen or used one, but sounds like a good choice.
Hmm, does look good. Added to my cart... I like the white, which isn't in stock yet. Thanks!