I bought this power bank for my electronic accessories a few months ago. So, here are my general reviews after using it. First of all the LED notification display is good. It gives real time feedback about the power left. However the power gets dissipated very quickly. I used this powerbank to charge my mobile phone who has a battery capacity of 4000 mah. My phone was halfway charged when the battery indicator in this Power Bank showed that 75% of the battery has been used. That was too much shocking for me. The power bank also does not get charged very quickly. For me, it took 6 hours to charge it completely. Therefore, do not go for this option