How To Make Battery Capacity Tester 🔋 Arduino mAh meter

In this video we are going to make a diy battery capacity meter, When you have salvaged a li ion or li po batteries , you have no idea on its real capacity , they have markings but that markings are just true if they are just fresh. battery capacity goes down as we cycle them(charge-discharge) many times.
Arduino sketch/code👉drive.google.c...
this prototype is far from perfect .we are limited by the accuracy of the adc, its noise and the shunt resistor gets hot so its resistance will change a little bit.Yes, the voltage divider on the shunt is very wierd design in know. Yes ,one can use low value shunt but it will require a nice opamp. But at least this gives us idea on the battery capacity.
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Music used in this video:
Itro & Kontinuum - Alive [NCS Release]
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