• ✅ EU Warehouse Stock , Fast Shipping (3–7 days) after payment 
• ✅ 5-Year Warranty on Case & BMS & Battery cells 
• ✅ Secure Payment via PayPal & Cards

Why Choose a 12V 280Ah DIY Battery Kit with JK-B1A8S20P BMS?
(Perfect Solution for Solar, RV, Marine, and Off-Grid Energy Needs)

As the demand for energy independence and renewable power solutions grows, more users are turning to DIY LiFePO4 battery kits — especially in 12V configurations for versatile applications. One of the most popular and reliable setups today is the 12V 280Ah LiFePO4 DIY kit paired with the JK B1A8S20P BMS.

Here’s why this combination is quickly becoming a favorite among DIYers, off-grid enthusiasts, and solar power users.

🔧 DIY-Friendly & Cost Effective

• 🧰 Easy to assemble with clearly labeled components and video guides
• 💰 Cost savings compared to pre-assembled batteries
• 🛠️ Customizable for different voltage configurations (12V / 24V / 48V systems)

📦 What Makes This Kit Stand Out?

Unlike standard kits, this one includes a smart active balancing BMS that ensures every cell performs at its best. Whether you're running heavy-duty DC loads or relying on your system 24/7, this kit is built for performance and reliability.

💰  How to choose which capacity is good for you ?

EVE LF280K 280Ah – Suitable for standard RVs/energy storage

EVE 304AH 300Ah – A cost-effective option

EVE MB31 314Ah – Long-life A+ cells

🔍 Why Choose the JK-B1A8S20P BMS?

The Jikong JK-B1A8S20P isn’t just any battery management system — it’s a smart, active-balancing BMS designed for safety, performance, and longevity.

Key Features:

• 🔁 Active Balancing: Ensures all cells stay at the same voltage for optimal lifespan and performance.
• 📱 Bluetooth Monitoring: Use the JK app to check voltage, temperature, SOC, and alarms in real time.
• ⚡ High Discharge/Charge Current: Handles up to 200A continuous discharge — perfect for inverters, motors, and high-demand systems.
• 🔐 Multi-layer Protection: Overvoltage, undervoltage, overcurrent, short-circuit, and temperature protections built-in.
• 🔌 Compatible with solar charge controllers & inverters

🔋 What’s in the Kit?

• without battery cells inside , you can put 4 pcs EVE LF280K/ 304AH / MB31 314AH,CATL 280AH /302ah/ 314AH ,CALB 280AH /314AH ,Cornex 280ah/ 314ah.  Hithium 280ah /314ah.Lishen 272ah /314ah ......
• JK-B2A8S20P Smart BMS (1A Active Balancing, Bluetooth Monitoring)
• High-quality Metal battery case
• All cables, busbars, and accessories included

This kit allows you to build your own 12V 280Ah LiFePO4 battery pack, ideal for high-capacity energy storage needs.

🔁 Core Value:
"Build your own 12V battery system in 30 minutes."

📱 Applications:
"Perfect for RVs, solar storage, and marine applications."

🔐 Kit Contents:
List format (Case + JK Smart BMS + Screws + Cables).

⚡ Comparative Advantages:
Compared to other bare housings on the market, this unit comes with a smart BMS, balancing protection, and is available for immediate shipping from Europe.

🚐 Best Use Cases for 12V 280Ah LiFePO4 Kits

This kit is ideal for:

✅ RV and Camper Vans

Power your mobile lifestyle with confidence. Run fridges, fans, lights, and even AC units without worry. The large 280Ah capacity means fewer charging cycles and longer off-grid stays.

✅ Solar Energy Storage

Pair with a solar system to create a compact, cost-effective home energy storage system or off-grid cabin setup. LiFePO4 batteries charge quickly, work safely, and last up to 10 years.

✅ Marine Applications

Thanks to low self-discharge and high energy density, it's a great option for boats and yachts where space and reliability matter.

✅ Off-Grid Living & Backup Power

Enjoy peace of mind during power outages or in remote areas. The active balancing BMS makes this battery extremely durable and safe.

If you’re looking for a powerful, safe, and smart DIY battery solution, the 12V 280Ah LiFePO4 kit with JK1A8S20P BMS is hard to beat. With unmatched value and real-world reliability, it’s the go-to choice for thousands of off-grid and solar users worldwide.

FAQ :

• Q: Does the kit include battery cells?
  A: No, this kit is for DIY users who already have LiFePO4 cells or we offer the battery cells together .
  
• Q: Which cells are compatible?
  A: EVE LF280K EVE 304AH EVE MB31, CATL 280AH/300Ah/314Ah, and CALB 280AH /314AH Hithium 314ah ,Cornex 314ah ,and other similar 3.2V prismatic cells.
• Q: How long is delivery from EU warehouse?
  A: 3–7 working days, no extra import tax for EU buyers.
• Q: Is technical support available?
  A: Yes, we provide online guides and customer support with  24*7