3.7V Lithium-ion battery charger with battery full indicator without IC
How to make 3.7 volt Lithiun-ion Battery chager with full charged indicator without IC. By AMKP40 technology. This circuit work perfectly with 5V DC adapters and 3.7v lithium-ion battery. If battery is fully charged with 4.267v than RED LED turns off that means battery is fully charged. If you want fast charge your battery, you just change the resistor behind this diode. Also you can adjust which voltage you want to show battery is fully charged, just rotating the 1K veriable resistor. This circuit Diagram is personal of AMKP40 technology [YouTube Channel]. If you have any questions about this circuit please comment below in the comment section. Like 👍 Share 🙏 Comment 💬 and Subscribe our YouTube channel AMKP40 technology. Thank you ............................................................................
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