• Parts List:- IC LM324 1pc
  • Zener Diode 2V or 3V 1pc
  • Resistor R1 10k, VR1-VR4 10K, R2 100ohm to 1K according to Battery
  • LED 4pc different colour or same colour

Hello, Friends, this is the best circuit for battery level indicator. You can use this circuit with any battery 3.7v/4v/6v/9v/12v etc.. you can adjust VR1-VR4 according to voltage Level. See the full video for detail.

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