I can not say enough good over this power bank! I take it with me everywhere! It is my back up source for charging all week long and it doesnt die. I just recharge it on the weekends when I'm home taking it easy so that during my busy hectic week I know I have what I call my life source haha. It truly is durable very solid, doesnt feel cheap like some do, it charges my phone to 100% within 25-30 minutes!