Legit Reviews checked out the iCharge-it Power Bank
A quote from the article:
iCharge-it Power Bank Has The Charms We were recently asked by +[iCharge-it!]- to take a look at their new power bank that was designed to work with both iPhones and Android devices. This 5000 mAh capacity battery pack is different than most as it magnetically attaches to the back of your phone or phone case.iCharge-it Power Bank Review