Aniket Singh

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@aniketxai

I’m a Full Stack Developer and IoT/Arduino Innovator. I build smart web apps and intelligent devices. On this site, I share coding tutorials, tech projects, and blogs related to web dev, embedded systems, and startup building.

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how to make 3.7v lithium-ion battery level indicator

Hello Guys , In this post we learn how to make 3.7v lithium-ion battery level indicator in cheap price and easy way.

Let start It:-

*parts list-

1.Led 5mm 3v (3 pieces)

2.100Ω resistor (3 pieces)

3.Diode IN4007

*schematic & diagram-

-connect all the components according to this diagram

-the first led indicate 1.5v ,second led 2.5v and third led 3,7v.

-in this circuit use 3 piece 100 ohms resistance , 2 piece IN4007 diode and 3 piece 5mm 3volt led.

-connect the battery in input and led glow according to battery voltage.

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