I bought this charger because I occassionally leave my phone in my purse overnight without charging.  It's nice having the iTorch in my purse as well so that I can just take out the cable and charge it while I'm on the go, in meetings, at the mall, etc.  I had my phone 25% charged, and pulled out the iTorch.  I fully charged the iTorch about three weeks ago, so I wasn't sure if it was going to work.  I was presently surprised to see that it charged pretty quickly and was at full capacity after 1.5 hours.  Totally took the charge out of the iTorch but I can easily charge that again later.