Average Customer Rating:
Stitchway iPhone / iPod Ultrapower Backup Battery Charger - 3 Pack
Product Review (submitted on August 10, 2012):
I just did a test today, I intetionally left my iphone4 run until only 3% battery life left, and then plug in this item which has been fully charged. In about 2.5 hours, this product ran out the power, and I check my iphone 4, it has been charged to 89%. Thus, this portable charger gives you roughtly 86% of your iphone 4 battery life. It cost me less than $8, thus I consider it as a good buy. BTW, this portable charger is about the half size of your iphone4.
Would you recommend this product to a friend? Likely