In This Video We Will Make a Better Power bank With Recycled Old Laptop Battery. If Want a Perfect Power Bank , Which Have Two Usb Ports for Input and Output So you Can Double your charging speed (Current) of your power bank .
With This Dual Usb input its possible to charge power bank from two usb chargers at 1.6 amperes, in half an hour from 0% to 100%
Pass through charging let you charge your device connected to power bank while charging the power bank itself. its one of the best diy cell phone charger that you can make.
The lithium cells can be reused from old laptop battery.
Specifications
Input : 5v , 1.6 A
Output : 5v , 2 A
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Post time: Jan-21-2017