The diagram illustrate the several differents between safe and unsafe power banks.
Overall, power banks have various different fillings and structures. Safe power bank 6 different constructions, unsafe power bank have 5 constrictions.
At the first, safe power bank consist of flame- resistant. Inside protection circuit module and Li-ion Battery cells connect its each other. Then brande named Market Packing covers the inside of power banks. The next input and output port needed for connection and charging with a wire.
Unsafe power bank cons is with 5 stages. At the top of the power bank no name battery cells. To compare with safe power bank it do not protect with circuit module. Although , the battery have not brand marking. The the only one same thing is input and output port which is located also located at the bottom of the power bank as in safe power bank.
