I purchased several of these chargers for myself and two of my relatives iPhones. They won't work with the OtterBox case that we have on our phones. Is there an adaptor that will allow it to connect and charge the iPhone? Here's the link http://www.dhgate.com/1000mah-external-backup-battery-for-iphone/p-ff808081229b40c901229bb90f977fa7.html