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Battery Voltage Level Indicator Circuit Diagram

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Publish time:08-30-2021
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Basic Electrical
3.7V batteries are very useful in various projects. Sometimes we don't have a voltmeter to check whether the battery whether gets discharged or not. So, with the help of this circuit, we can check our battery whether is full or discharged. What is 3.7V Battery Level Indicator? 3.7V Battery level indicators are such a circuit through which you can know that battery is full or not by just simply connect the battery to it. This circuit doesn't contain any IC, we make this circuit only by using a transistor and few more components. Components Required- BC547 Transistor 220ohm Resistance 2x 1k Resistance 2x led (Green & Red)
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