I have used it for 6 months and now it is not charging. The charging port became loose even of my lite use. I have to insert my port thoroughly so that it can be charged. But it taking too much time to charge. Almost 6-7 hours. I thought I can use my warenty but it has expired. I bought it from Amazon so I can't do too much about it now. It looks cheap in this price range but it doesn't worth it. The solid build quality will fool you because the ports are too weak and can be damaged easily. The 10000mah backup may look lucrative but I never completely charged my two phone completely even both of them 4000mah. It can only charge one 5000mah phone and a 2000mah phone. This can even decrease if you are using the fast charging port. Total waste of money.