#12V Battery Charge Monitor with LM3914 | 10 LED Battery Level Indicator | DIY Electronics Project

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**12V Battery Charge Monitor with LM3914 | 10 LED Battery Level Indicator | DIY Electronics Project**

Aaj hum bana rahe hain ek super useful aur easy **12V Battery Charge Monitor** using popular **LM3914 IC**. Ye project battery ki real-time voltage level ko 10 LEDs ke through visually dikhata hai – Red, Yellow aur Green LEDs se aapko turant pata chal jata hai ki battery kitna charge mein hai!

### 🔥 Project Highlights:
- 10 LED Bar Graph Display (Red = Low, Yellow = Medium, Green = Full)
- Accurate Voltage Level Indication
- Easy Calibration with Potentiometer
- Reverse Polarity Protection
- Simple & Low-Cost DIY Circuit
- Perfect for Beginners & Electronics Hobbyists

### 📌 Video mein Dekhiye:
- Complete Circuit Assembly
- LM3914 IC Working Explanation
- LED Sequencing Test
- Real-time Voltage Testing with 3.7V & 12V Supply
- Bonus: Coreless Motor + Temperature Sensing (NTC) Modification
- Heat Test with Lighter 🔥
- Final Working Demo

### 🛠 Components Used:
- LM3914 Dot/Bar Graph Driver IC
- 10 LEDs (Red, Yellow, Green)
- Resistors & Capacitors
- 10K Potentiometer (VR)
- BC557 Transistor
- NTC 10K Thermistor
- Coreless Motor (Fan)
- Breadboard & Jumper Wires

### 💡 Applications:
- 12V Inverter Battery Monitoring
- Solar Battery Status Indicator
- E-Rickshaw, Bike & Car Battery Checker
- DIY Power Bank & UPS Projects
- School/College Electronics Projects

Ye project bahut hi kam kharch mein ban jata hai aur aap isko apne solar setup, inverter, ya kisi bhi 12V battery ke saath use kar sakte hain.

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**Timestamps:**
00:00 - Intro & Project Overview
00:45 - Circuit Diagram Explanation
01:30 - Components List
02:20 - Breadboard Assembly
04:10 - LM3914 Pin Configuration & Working
05:30 - Testing with 3.7V Supply
06:15 - Full 12V Battery Test
07:00 - Temperature & Motor Demo
08:20 - Final Result & Calibration Tips

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#12VBatteryMonitor #LM3914 #BatteryLevelIndicator #DIYElectronics #ElectronicsProject #FutureTech01 #LM3914Project #SolarBatteryMonitor #TechDIY

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Видео #12V Battery Charge Monitor with LM3914 | 10 LED Battery Level Indicator | DIY Electronics Project канала future tech01