This external battery pack works great. It is 5000 ma hours so it has power to spare. It will recharge my iTouch from 3-5 times. I would like to see a couple of design improvements though. It would be nice if the adapter that connected with the iTouch accepted the power cable at a right angle instead of straight out from the bottom. It's fine in its current design, but my idea would make it so much better. Also, because the adapter that is used to plug into the iTouch is used for multiple purposes it would be nice if they put velcro on it so you could attach it to the device when not in use. The connector could get lost so I put a small piece of velcro on it and on the coil wire holder. Now when the connector is not being used it is stuck to the wire assembly so it can't get lost.