
Looking for a reliable, high-performance insulating material to build your own LiFePO4 battery pack? Look no further! This 5/10/20pcs/lot 10/20Pcs 3240 Epoxy Fiber Board is specifically engineered for DIY enthusiasts and professionals building 3.2V 280Ah, 320Ah, 310Ah, 90Ah, and 12.8V LiFePO4 battery systems. With precise dimensions of 2031720.5mm, these boards provide exceptional electrical insulation, mechanical strength, and thermal stability — critical for safe and efficient battery assembly.
Made from premium-grade 3240 epoxy fiberglass laminate, this material offers:
- Superior dielectric strength to prevent short circuits
- Excellent resistance to heat, moisture, and chemicals
- High mechanical rigidity for secure cell spacing and structural support
- Precision-cut dimensions for seamless integration into standard battery pack designs
Whether you’re assembling a solar storage system, EV battery, or off-grid power solution, these boards are the ideal choice for isolating cells and ensuring long-term reliability. Each lot includes 5, 10, or 20 pieces — giving you flexibility for small prototypes or larger builds.
🔥 Special Offer: Only $4.84 per lot!
Don’t miss this limited-time price — originally valued higher, now available at an unbeatable rate. With over 1,050 units sold, this product is trusted by DIY builders worldwide.





Why choose this epoxy fiber board?
- ✅ Certified 3240 grade for electrical insulation
- ✅ Perfect fit for 3.2V LiFePO4 cell layouts
- ✅ Durable, lightweight, and easy to drill or cut
- ✅ Ideal for DIY, prototyping, and small-scale production
Join hundreds of satisfied customers who’ve upgraded their battery packs with this essential insulating solution. Whether you’re a hobbyist, engineer, or renewable energy enthusiast, this product delivers professional-grade performance at a fraction of the cost.
👉 Click below to secure your lot at just $4.84 — prices won’t last!
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