Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Charges very slowly.

This kit works, but doesn't charge quickly at all. I guess not much is to be expected for the price. It has become a back up charger that is only used in dire emergencies when there is no access to a normal charger. Many times the phone or iPod plugged in will say charging is not supported with this device. So sometimes it works, sometimes it doesn't.