@futurewiretech1: Make a 3.7V Battery Charger with LED Indicator! #electronics #DIY #ideax 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#futurewiretech

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Friday 18 September 2026 18:08:25 GMT