How to Make Lithium Battery at Home (2025) | 20-Year Life LiFePO4 Battery for Car & Inverter | DIY

Are you tired of replacing your Car or Inverter battery every 2-3 years? 😩 Welcome to the ultimate guide on How to Make a Lithium Iron Phosphate (LiFePO4) Battery at Home that lasts for 20 Years! 🔋✨

In this video, Deepak Chaudhary (Nexus Solar Energy) reveals the secrets of Lithium technology that battery companies don't want you to know. Whether you need a powerful battery for your Car, Truck, Tractor, Jeep, or your Home Solar Inverter, this DIY guide covers everything from selecting the right cells to the final installation.

We explain why LiFePO4 batteries are superior to traditional Lead-Acid batteries—they are lighter, maintenance-free, and have a lifecycle of over 5000 cycles (vs 300-400 cycles for lead-acid). You will also learn about C-Rating (Discharge Rate) and why normal lithium batteries fail in cars (starting torque issues) and how to fix it with a specialized High-Discharge BMS.

🛑 What You Will Learn in This Video:
✅ How to assemble a 12V 100Ah Lithium Battery pack at home.
✅ Difference between Grade A and Grade B cells (IR Testing).
✅ How to choose the right BMS (Battery Management System) for high torque (Car Self-Start).
✅ Step-by-step wiring: Cells to BMS to Terminals.
✅ Waterproofing and Cabinet selection for long life.
✅ Price & Cost Calculation: Save 50% money by making it yourself!

This is not just a tutorial; it is a complete Masterclass on Lithium Batteries. Watch till the end to become a Battery Expert! 👨‍🔧

⏱️ Video Chapters (Timestamps): [00:00] Introduction: Why Lead-Acid Batteries Fail? [
00:54] Lithium Battery Benefits: 20 Years Life & No Maintenance.
[01:30] Components Required: Prismatic Cells (3.2V), Busbars & Connectors.
[02:40] The Secret of IR (Internal Resistance): How to match cells perfectly?
[04:40] 12V vs 24V Configuration: How many cells do you need?
[05:30] BMS Explained: Why do you need a High-Discharge BMS for Cars?
[08:00] Practical Assembly: Connecting 4 Cells in Series (4S).
[11:00] Harness Wiring: Connecting BMS Sense Wires Correctly.
[12:30] Cabinet & Safety: Using Epoxy Sheets & EVA Foam for Shock Proofing.
[15:00] Waterproofing: Best practices for Vehicle Batteries.
[16:20] Final Connection: Attaching the BMS Main Wires (B- and P-).
[18:40] Live Testing: Checking Voltage & Activation.
[19:30] Multi-Purpose Use: Using the same battery for Car & Home Inverter.
[21:00] Price & Availability: Where to buy Raw Materials (Cells/BMS)?

💡 Technical Specifications (From Video):

Cell Type: Lithium Iron Phosphate (LiFePO4) Prismatic Cells.

Voltage: 3.2V Nominal per cell.

Configuration: 4S (12.8V) for 12V System | 8S (25.6V) for 24V System.

Life Cycle: 5000+ Cycles (approx. 15-20 Years).

Capacity: 100Ah / 200Ah (Customizable).

Discharge Rate: 3C to 5C (Essential for Vehicle Self-Start).

BMS Features: Overcharge, Over-discharge, Short Circuit, and Temperature Protection.

💰 Cost Estimation (Approximate):

Grade A LiFePO4 Cell: Starts from ₹2,200 - ₹2,800 per cell.

Smart BMS: Starts from ₹11,000 + GST (High Torque Model).

Total Savings: Making this battery at home is 30-40% cheaper than buying a branded ready-made lithium battery!

📞 Where to Buy? (Contact Details): For Raw Materials (Cells, BMS, Spares) call VAD Associates. For Ready-Made Batteries call Nexus Solar Energy.

👨‍💼 Sales & Order Inquiries: 📱 +91 95280 29745 📱 +91 95280 29746 📱 +91 63968 55243 📱 +91 63968 55244 📱 +91 63968 55245 📱 +91 63968 55247

🚚 Dispatch Status: 📱 +91 63968 55248

🛠️ Technical Support & Complaints: 📱 +91 63968 55249 📱 +91 95280 29742

Visit Us: 📍 Factory Address: Nexus Solar Energy, Industrial Area, Bulandshahr, UP. 🌐 Website: www.nexussolarenergy.in 📧 Email: [email protected]

🔍 Common Search Queries Solved: This video answers all your questions about:

How to make 12v lithium ion battery pack at home.

Best lithium battery for solar inverter in India 2025.

LiFePO4 battery price in India per Ah.

Can I use lithium battery in my car?

Difference between Lithium Ion and Lithium Phosphate battery.

Nexus Solar Energy battery review.

DIY solar battery storage system for home.

How to check battery cell Internal Resistance (IR).

High discharge BMS for car starting.

Old car battery vs new lithium battery comparison.

📢 Why Switch to Lithium (LiFePO4)?

Zero Maintenance: No water topping needed.

Fast Charging: Charges 2x faster than lead-acid.

Safety: Non-explosive and fire-retardant chemistry.

Eco-Friendly: No hazardous lead or acid leaks.

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Disclaimer: This video is for educational purposes only. Working with lithium batteries requires care and safety precautions. Ensure you use proper protective gear and follow the wiring diagram strictly. Nexus Solar Energy is not responsible for damages caused by incorrect DIY assembly.