Make a 3.7V Battery Charger with LED Indicator! 🔋💡 #electronics #diy #ideax

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In this video, you'll learn how to make a 3.7V battery charger circuit with LED indicators that show both charging and full states. 🔋

This simple DIY project uses just a few components:

1N4007 diode

1K resistor

Red LED for charging

Green LED for full

3.7V Li-ion battery

5V input power source


🔴 The red LED turns on when charging.
🟢 The green LED lights up when the battery is full.

Perfect for DIY electronics lovers, this circuit helps protect your Li-ion batteries and adds clear charging status feedback.

#batterycharger #3_7vbattery #chargingindicator #diyelectronics #ledcircuit #liioncharger #5vcharger #electronicsproject #smartcharging #diyschematics