Mota Extended Battery Case for iPhone 5/5S for $40 + free shipping
Groupon offers the Mota Extended Battery Case for Apple iPhone 5/5S in three colors for $39.99 with free shipping. That's the lowest total price we could find by $10. This low-profile case features a built-in 2,400mAh battery which is purported to nearly double the life of the phone. Deal ends October 26 at 1 am ET.
5 very similar deals were also reported by some other sources: