Step Up Power Bank

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Introduction: Step Up Power Bank

This is how it looks like

Step 1: Materials Required- Dc Step Up , Li-ion Rechargeable Cells,li-ion Charging Circuit,battery Contacts,usb Female Contacts

connect all the stuff as shown in circuit diagram

Step 2: Circuit Diagram

see the video on youtube to get fully understand about the powerbank.

my channel--- kakubotics

enjoy and keep subscribing gyz.............................

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Note to iphone/ipad users: if you want to have the device draw the full 1A or 2A, you need to add some resistors to the data+/- lines. Google it.