Build a Power Bank QC 3.0 and Power Supply Voltage 1,2 - 35volt | Part 2

How to make a Power Bank QC 3.0, and Power Supply Voltage 1,2 - 35volt 2 in 1 Materials to include Old bike battery 2pcs Module Buck DC to DC Converter 150W Boost Adjust Module 30A 4S Li-ion battery L charger with PCB protection Watt Voltage Meter 2 PCS Module Power Bank Quick Charge 3.0 Thanks for watching, Have a great day !