3.7V Battery Level Indicator - Simple Electronic Project
Introduction
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Diagram of Battery Level Indicator Circuit
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Components Needed for this Project:
You can get the components from any of the sites below:
- BC547 Transistor [See Buy Click Amazon]
- 1N4007 Doide [See Buy Click Amazon]
- LED 5mm [See Buy Click Amazon]
- 1k Ohm Resistor [See Buy Click Amazon]
- 220 Ohm Resistor [See Buy Click Amazon]
*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!
Related Basic Electronic Mini Project Circuit Diagram:
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Working Principle
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Frequently asked questions
Battery level indicator is the project that indicates the status of the battery by use of LED and LCD. This project can know the status of the battery left. battery level indicator signal for the Project circuit diagram.
Lithium-ion batteries charging a 3.7V they should be charged at a constant current of 0.2 to 0.7 times their capacity. till their terminal voltage reaches 4.2 V Full charging level.
Bc547 Transistor counter With a nominal voltage of 3.7V and a nominal capacity of 1850mAh, we could say it has a nominal energy storage.
Charging indicators allow you to determine the charging state of LED light Green Full charge or Red Light charging.
In general, connecting a 5V supply to a 3.7V device could damage it immediately, or in the long term, but it is impossible to say without seeing the schematics of the device how much excess voltage it can handle. However, you are using USB devices, so the above does not apply.
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