مكونات الدائرة
- Parts list:-
- 12V relay
- BC547 or any transistor
- 1K resistor
- 3.3K resistor
- Red led (To indicate charge complete)
- Green led (To indicate charging)
- 10K preset
- 4 diode
- 1 Step-down transformer as per your battery voltage
- 1000 uf capacitor