Amazon is offering the Portable Charger RAVPower 26800mAh (Total 5.5A Output,3-Port,2A Input) External Battery Pack Power Bank with iSmart Technology 2.0 for Smartphones and Tablets for the best deal.
This can charge an iPhone over 6 times
Next best price on Google is $49.99 shipped
1. Amazon Price is $49.99
2. Use coupon code 26800RAV to get $14.99 off
Good until 3/31/17
3. Free shipping with $35 purchase or with Prime
Final Price is $35 Shipped