Homemade battery charger of very high quality.

🔥 PCBway: ▶ https://www.pcbway.es/?from=Channel+X...

Charge controller materials:
1 - BC549 or BC548 or BC547 transistor
1 - 3.3K resistor
1 - 1K resistor
1 - Green LED
1 - Red LED
1 - Relay
1 - 1N4148 diode
1 - 10K trimpot
1 - Voltmeter (optional)

Schematic and Gerber diagram: https://drive.google.com/drive/folder...

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