This power Bank case can contain 7 piece of 18650 lithium ion battery. The circuit support fast charging of 2A. Its has 2 USB port of 2A charging and type B charging port. Double power led to light up more area and other power banks. Circuit also has switch to check its battery level. It has Display to show the battery charge parcentage like 25/50/75/100%. 

Display Power Bank Case+Circuit


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