Having recently strayed away from my iPhone 6S I now have for sale a Mophie Juice Pack plus (3300aMH) Compact Battery Case for iPhone 6/6S in Black It's been used half a dozen times or so and is in excellent condition (in it's box as I type). I think I paid £80 for it new and I'm looking for £45 including P&P. Not only does it charge your phone up pretty quickly but it is a very robust case too. Please PM me if you're interested. https://9to5mac.com/2015/04/11/revi...are-polished-battery-cases-at-premium-prices/