I recently purchased the Samsung Galaxy Note 3 along with several phone cases and this portable charger. I bought the charger mainly because I am unable to charge my phone with my cigarette lighter adapter. There is a short somewhere. I use the GPS on my phone, especially when traveling long distances. There have been numerous times when I have had to stop for hours to use an outlet in order to charge the battery on the phone, otherwise I get lost! This charger is a fantastic solution to my problem. It is lightweight, compact, and extremely versatile. It can be used on many of my electronics and I no longer have a different adapter/charger for every one. The price is very reasonable and the order shipped the same day I ordered it. Received it in 2 business days.