My husband and I each purchased the External Battery Case for iphones. After 2 months mine stopped working and would not charge. I am extremely disappointed and when I tried to call the company the number was no longer in service. DO NOT PURCHASE THESE PRODUCTS. I was even told when I bought these that when I upgraded my phone the battery case would be updated for my new phone at no charge as long as I have the original packing my battery case came in. I do not recommend buying anything like this again.