OpenSky 3,200 mAh Battery Case
Here we have a low-priced 3rd party alternative for those looking for something sleek, and available now. This case offers 3,200 mAh of additional power for much less than the competition, but is more of a battery than a case. Your iPhone 6 slides in and doesn't get protected much, but will have days of battery life when you need it.
It's a simple case in two colors, and won't break the bank. If you need something now and aren't worried about protection, give this a try.
3,200 mAh Ultra Thin Case - Buy now for $21.00