Filluck 40PCS Battery Cable Ends, Heavy Duty Wire Lugs 1/0 AWG 2 AWG 4 AWG, 3/8" Ring Battery Terminal Connectors with 3:1 Heat Shrink Tubing, Wire Connectors Kit for Automotive, Marine, RV, Solar

<p>The Filluck wire connectors features 100% pure copper heavy duty wire lugs for superior conductivity, corrosion resistance, and easy crimping. Each closed-end copper ring terminal offers a secure, moisture-proof connection, with 0 gauge amp wiring kit weighing 85g for added durability. Includes color-coded heat shrink wire connectors for insulation and quick polarity ID. Perfect for cars, RVs, solar systems, marine, and DIY wiring. Comes in a compact case with 40 pcs, clearly labeled for easy use.</p><p>?? Helpful Tips:</p><p>▪️ While the included heat shrink offers excellent insulation, it is not waterproof. For marine or damp environments, we recommend applying a small amount of hot glue inside the tubing before shrinking to create a waterproof seal.</p><p>▪️ When crimping, always match the copper wire connectors to the appropriate wire gauge for a secure and reliable fit.</p><p>▪️ This product is not intended for children. Please keep out of reach of children.</p><p>▪️ This battery terminal connectors is ideal for professional electrical setups, such as in distribution boxes, batteries, and power cables. It’s also great for use in car audio, motorcycles, marine wiring, home appliances, toys, and solar installations. These electrical crimp terminals help you create tighter, safer, and more efficient cable connections.</p>

• ✒ Premium Conductive Material – Crafted from 100% pure copper, Filluck battery terminal connectors offer superior conductivity and thermal efficiency, helping to maximize current transfer. The acid-cleaned surface prevents oxidation, while the soft yet strong copper is easy to crimp and resistant to breakage. Built for durability and corrosion resistance, these heavy duty battery terminals are ideal for high-performance electrical systems in vehicles, solar inverters, boats, and more.

• ✒ Secure & Reliable Connections – Each electrical connector features a thickened closed-end design for a more secure, moisture-proof, and heat-resistant connection. The 1/0 battery cable weigh 85g each—approximately 40% heavier than typical lugs—for added stability. The 4mm thickened and widened washers boost conductivity and deformation resistance. Paired with 3:1 polyolefin heat shrink tubing, this wire connectors kit ensures long-lasting, insulated protection against heat, humidity, and corrosion. ROHS-compliant for safe and eco-friendly use.

• ✒ Easy Identification & Installation – Each ring terminal is clearly marked with gauge size for quick cable matching. The flared entry design allows cables to slide in smoothly, and once crimped, the included shrink tubing provides a tight, weather-resistant seal. Red and black color-coded sleeves help you distinguish positive and negative connections easily—enhancing both safety and installation speed.

• ✒ Wide Application – These battery cable ends are designed for secure cable-to-equipment connections, reducing the risk of short circuits or loose contacts. Perfect for automotive projects, RV battery banks, solar panel wiring, marine setups, golf carts, motorcycles, audio systems, household wiring, grounding, and outdoor DIY electrical work.

• ✒ Compact & Portable Kit – The Filluck heavy duty copper wire lugs kit comes in a compact 7 x 3.94 x 1 inch (L×W×H) storage case, making it easy to organize, store, and carry. Terminals are sorted and arranged neatly to prevent loss or mix-ups. Always check sizing before use to ensure proper fit.

• ✒ 40PCS Specifications:

  Battery Cable Ends：

  0 Gauge Wire × 8PCS

  2/0 Copper Lugs × 4PCS

  4 Awg Battery Cable × 8PCS

  Heat Shrink Tubing：

  Φ0.5 in -- 4Pcs Red+4Pcs Black

  Φ0.61 in -- 6Pcs Red+6Pcs Black

  Storage Box × 1