great design, super useful but a corrosive Gimmick

The battery lasts a long time and loads the device super fast ... However, the activation of the charging process is by shaking a not quite mature idea. Already by slightly moving start charging or if no device is connected, a review of the charge state of the Power Bank. Especially if you are traveling outside of the charge level is checked continuously. And even with minimal power consumption of the LED that goes on the capacity. A simple button would have been better. That being said, there are nothing to complain about