Lithium-ion battery charging module || 3.7 battery charger auto cut off 4.2v

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lithium battery charging module बनाएं आपने घर पर || 3.7 V battery charger auto cut off 4.2 V

Used parts

1 . 2 LED light Red and green 2v

2. 2p R4.7k 

3. R220

4. R15k

5. R1k

6. R5.6k

7. TL431 

8. IRFZ44N

9. lithium battery 3.7v 

10 . 2A 5v mobile charger

Circuit diagram

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