Battery Level Indicator Module for Lithium and Lead-Acid
Price range: 25.99 € through 26.99 €
🆓 FREE SHIPPING with tracking number!
✅ No Import Taxes on delivery!
🏷️ Condition: New
🚚 Ships from: HK Warehouse – Hong Kong (China)
↩️ Easy Returns within 30 days of receipt
🙋 Any questions? Contact Jake
This compact DIY LM3914 battery level indicator module measures battery voltage from 2.4V to 20V, compatible with 1S to 4S lithium batteries (3.0V to 16.8V), 6V and 12V lead-acid batteries, as well as nickel-hydrogen and nickel-cadmium sources. It features a 45 x 14 mm green PCB with a bright, customizable LED bar or dot display in red, green, or blue. The module’s voltage range is adjustable for precise charge-level monitoring, with minimal current draw of 4mA per LED and a maximum of 42mA at full brightness. Ideal for DIY electronics, it offers accurate, easy calibration within a temperature range of -20°C to 65°C.
This DIY LM3914 Battery Indicator Module
Experience a sleek, compact design that seamlessly integrates into any battery management project. Crafted on a vibrant green PCB measuring 45mm by 14mm, this module's aesthetic features a bright white horizontal LED bar graph display that vividly indicates charge levels. The LEDs, available in red, green, or blue, are arranged in a visually appealing pattern, providing instant, clear feedback. The black rotary potentiometer offers smooth calibration, adding a modern touch to its minimalistic style. Whether you're customizing for lithium, lead-acid, nickel-hydrogen, or nickel-cadmium batteries, this module's aesthetic combines functionality with a vibrant, technological appearance, making it a practical yet visually striking addition to your electronics toolkit.
Keys features of the this DIY LM3914 Battery Indicator Module
- The module features a compact 45x14mm PCB with a clean, minimal aesthetic designed for easy integration into various projects.
- Bright, colorful LED display options in red, green, or blue improve visibility and customization for different battery types and personal preferences.
- The module supports a wide voltage range from 2.4V to 20V, accommodating 1S to 4S lithium batteries, as well as 6V and 12V lead-acid batteries, and other power sources.
- LED configurations include multi-light bar or single-dot modes, with a power draw of 42mA at full brightness and 4mA per individual LED for energy efficiency.
- Includes adjustable potentiometers of 50K and 5K ohms for precise calibration, ensuring accurate voltage measurement and charge level detection.
- The module operates efficiently over temperatures from -20°C to 65°C, providing reliable performance in diverse environments.
- The design's technical specifications include a maximum DC voltage of 20V, voltage measurement accuracy for various battery chemistries, and support for multiple series configurations.
This LM3914 Battery Indicator Module is perfect for your project—order now!
Transform your battery monitoring or DIY project with this versatile, visually appealing indicator module. Its customizable LED colors and precise voltage detection help you easily monitor battery life at a glance. Designed for ease of calibration and compatibility with a variety of batteries, it seamlessly integrates into RC toys, power banks, and other electronic devices. Once installed, you’ll appreciate its clear, vibrant display, giving you confidence in your power source management. Elevate your projects with this efficient, stylish, and highly functional indicator module—buy today and enjoy dependable performance.
| Color | Blue, green, Red |
|---|---|
| Condition | New |
| Warehouse | HK Warehouse – Hong Kong |
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5. Expertise in Business & Problem-Solving 🎓 – I am not just an entrepreneur in the e-commerce business; I also hold a PhD in Mathematics and continue to work at the frontier between computer science and pure mathematics. My expertise spans multiple advanced fields, allowing me to approach complex logistical, operational, and technical challenges with precision and efficiency. This mindset of structured problem-solving and analytical thinking is what enables me to offer a smooth, optimized, and highly reliable shopping experience. Whether it's managing logistics, handling unexpected issues, or improving customer service, I apply the same rigorous problem-solving approach that I use in advanced mathematical research.
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I use fast, reliable, and monitored logistical routes to your region. Once your package reaches your country, it is handed over to a local subsidiary of Cainiao Global Express or a major national carrier, such as Evri or Royal Mail for the UK, Colissimo for France, Poste Italiane for Italy, Correos for Spain, or Bpost for Belgium 🌍
I typically dispatch items within 2 business days for products shipped from my warehouse in France and within 5 business days for products shipped from my Hong Kong warehouse. Every package comes with a tracking number, with estimated delivery times ranging from 10 to 20 days, depending on your location. However, most packages arrive within 7 to 10 days ⚡
Q: How long does shipping take? ⏱️
A: Most packages arrive within 7-10 days, with full tracking available. The Cainiao Global Express logistics network ensures reliable transit times, unlike standard shipping services that may take much longer.
Q: What is the journey of a package? 🗺️
A: Every package follows a highly optimized and secure logistics path to ensure fast and reliable delivery. It begins at my warehouse in Hong Kong, where it is prepared for shipment before being transferred to Cainiao Global Express' logistics hub in Mainland China, marking the official start of the shipping process. From there, the package moves through Cainiao's high-efficiency logistics network, ensuring continuous monitoring and rapid transit to its destination country. Once it arrives, it is either handed over to a local Cainiao subsidiary or entrusted to a major national carrier for smooth final delivery. This process guarantees secure, fast, and well-tracked shipping, providing the same level of efficiency as major global retailers.
EASY RETURNS 🔄
If you need to make a return, there's no need to ship the item all the way back to Asia. I make returns easy by accepting them directly at my warehouse in Marseille, France. Feel free to reach out to me — I'm here to make the process as smooth as possible 📬
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All items are presented accurately in photos and descriptions. If you have any issues with your purchase, please contact me. Your satisfaction is my top priority 💯
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I take pride in offering meticulously crafted items, carefully curated by me, Jake, PhD. Together with Marwa, we bring passion and excellence to every detail ❤️
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