Straight Style Battery Post Terminal, 4/0 AWG, Negative
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Conversions Tech™ 4/0 AWG One-Hole Battery-Post Lug — Part No. 9965-0040
Give every high-current battery link a low-resistance, corrosion-proof connection. This Conversions Tech™ tin-plated copper terminal is purpose-built for 4/0 AWG cable, delivering maximized conductivity, instant die identification, and factory-installed stainless hardware that saves job-site time. Perfect for truck cranking leads, marine start circuits, solar combiner boxes, telecom 48 V strings, and EV busbars.
- 99.9 % copper barrel for ultra-low milliohm path and high fault-current capacity
- 3–5 µm bright-tin plating resists galvanic corrosion and is fully RoHS / REACH compliant
- Yellow “15” die code & barrel stripes = instant 4/0 AWG tool match
- Chamfered, deburred entrance guides fine-strand DLO and flex cable without bird-caging
- Pre-installed stainless 5⁄16-18 bolt & nut—no extra hardware hunting
- Polarity-coded clamp (Red = Positive, Black = Negative) slashes wiring errors
- Tested to exceed UL 486A-B pull-out values by ≥ 20 % (not formally UL-Listed)
- 105 °C / 35 kV rating handles engine-bay heat and high-voltage DC strings
| Specification | Value |
|---|---|
| Part Number | 9965-0040 |
| Conductor Size | 4/0 AWG — Class B/K flex & compact |
| Overall Length | 2.36 in / 60 mm |
| Barrel Strip Length | 1-3/32 in / 27 mm |
| Overall Width | 0.98 in / 25 mm |
| Die Index / Color | 15 · Yellow stripes |
| Bolt & Nut | Stainless 5⁄16-18 — torque 72 in-lb |
| Tongue Angle | Straight, 1-hole clamp |
| Voltage Rating | ≤ 35 kV DC impulse |
| Temperature Range | −40 °C → +105 °C |
| Material / Finish | C110 copper • Bright-tin plated |
| Compliance | RoHS ✔︎ • Meets UL 486A-B tensile ✔︎ |
| Pack Quantities | 10-pc mini | 100-pc master carton |
Ideal Installations
Heavy-duty truck batteries • Marine thrusters • Solar + storage combiner boxes • Telecom 48 V rectifiers • EV battery busbars • Off-grid inverter banks
Conversions Tech battery-post lugs provide premium conductivity, fast visual QC, and industry-leading corrosion resistance—your most reliable choice for mission-critical power connections.
4 Reasons Pros Buy Direct from Conversions Tech
Headquartered in business-friendly Wyoming, we design, test, and ship every product from inside the United States—delivering genuine “Made-for-America” quality without the big-box markup.
Our in-house team owns every CAD file, mold, and QA station behind our weatherproof boxes, conduit bodies, and power inverters. Vertical control means tighter tolerances, UL-listed safety, and up to 30 % lower cost than private-label imports.
Thousands of SKUs sit ready to go. Orders placed by 2 p.m. ship the same day, keeping contractors, OEMs, and distributors on schedule.
Need a torque spec or an OEM quote at dawn? You’ll speak directly with the Conversions Tech engineering desk—not a script reader—for instant answers, custom kitting, and private-label options.
Bottom line: For rugged, code-compliant electrical solutions shipped fast from a trusted U.S. source, choose Conversions Tech and build it right the first time.
