The depicted pictures illustrate the differences between the energy banks that are certain and uncertain.
Overall, in the diagram where is the safe power bank everything is detailed and well structured. There are numerous varieties between these illustrations, such as in circuit board, name of batteries, and port.
To start with, in the uncertain power bank the circuit board is simple while the other power bank has flame- resistant casing. The batteries placed in the power bank are without protection circuit module and brend name. These drawbacks are improved in safe version ( they add protection module and the name Li-ion ) and in addition it is with brand-name marked packaging.
Under the circuit board there were small buttoms which were repositioned and have seen a change in amount. At the bottom, there ara other disadvantages, for instance the port of input and output was designed wrong and in improved edition they replaced that port, placing it to the middle position of the face part.