Just Use A BC547 Transistor And Make A 3.7V Automatic Battery Charger Circuit | 3.7v Battery Charger

Just Use A BC547 Transistor And Make A 3.7V Automatic Battery Charger Circuit | 3.7v Battery Charger
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Friends in this video we will learn how to make 3.7v automatic battery charger circuit at home..It is a 3.7v battery charger with 3.7v battery level indicator circuit..We will use two LEDs ( Red & Green ) Red led is as chaging indicator and the green led is as battery full indicator..When the battery will be fully charged the green led will be on automatically..
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#battery #batterycharger #automaticbatterycharger

[@woodywood1951]

very simple but like most simple things very efficient...

[@TechnicalPremier]

Yes, thanks

[@davidfalconer8913]

This looks a good circuit ( I have not built it , yet ! ) , but most chargers of this type use the RED to show low charge and the GREEN to show full charge ( so just change over the LED's , their Vf is almost the same ! ) .... DAVE™🛑