iTech Deals offers the Duracell 1,800mAh Portable Wall Charger and Power Bank
for $11.98. Coupon code "DEALNEWSOFF3" drops it to $8.98
. With free shipping
, that's the lowest total price we could find by $6. It purports up to eight hours of talk time on an iPhone 4 or 5. Deal ends May 29.