Sea-Dog 4 AWG Black Battery Cable 25 ft | 8004010
Sea-Dog 4 AWG Black Battery Cable 25 ft | 8004010 — Product description
Sea-Dog's 4 AWG black battery cable gives you 25 feet of tinned copper on a spool for the negative side of a serious marine DC run. No terminals attached, so you cut it to length and crimp your own lugs. UL listed and built to ABYC standards.
Sea-Dog's 4 AWG battery cable is the black negative leg of a proper marine DC run. It ships as a 25-foot spool of tinned copper, so you cut exactly what your install needs and crimp your own lugs on the ends. No terminals come pre-attached, which is the way most riggers want it anyway. You control the length, the terminal type, and the routing. Buy the whole 25 feet and you've got enough for several runs with cutoffs to spare for shorter jumpers.
Here's why tinned copper matters on a boat. Bare copper corrodes. Salt air and bilge moisture creep into the strands, the wire greens up, and resistance climbs right where you don't want it. Every strand in this cable is tin-plated, so it shrugs off that corrosion for years instead of months. It's the difference between a battery run you wire once and one you're chasing voltage drop on every spring.
Four gauge is the size you reach for on the bigger DC loads. Battery-to-switch runs, windlass feeds, inverters, bow thrusters, house bank interconnects. The fine-strand construction stays flexible in the cold and takes tight bends around stringers and bulkheads without fighting you. On a mid-size boat that's plenty of length to reach from a stern-mounted bank up to the helm without a splice. Pair it with the matching Sea-Dog red positive spool in the same gauge and you've got a clean, color-coded pair for the whole circuit.
It's UL listed and built to ABYC standards, so it passes survey and keeps the surveyor off your back. One thing to keep straight: black is the negative conductor here. If you need the positive side, grab the red 4 AWG spool. Strip it, crimp a tinned lug, seal it with adhesive-lined heat shrink, and you're done. Nothing exotic about the install, it just has to be done right the first time so you're not back in the bilge next season.
Key Features
- 4 AWG tinned copper conductor, every strand tin-plated to resist salt and bilge corrosion
- 25-foot spool with no terminals attached, so you cut to length and crimp your own lugs
- Black jacket, negative polarity, pairs with the matching Sea-Dog red positive spool
- UL listed and built to ABYC standards, passes survey
- Fine-strand construction stays flexible in the cold and bends tight around bulkheads
- Sized for high-current DC loads: battery-to-switch, windlass, inverter, and thruster runs
Why Buy from NVN Marine
- Authorized Sea-Dog reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Sea-Dog 4 AWG Black Battery Cable, 25 ft Tinned Copper Spool |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 8004010 |
| UPC | 035514800433 |
| Gauge | 4 AWG |
| Conductor | Tinned Copper |
| Length | 25 ft |
| Color | Black |
| Polarity | Negative |
| Terminals | Without Terminal (bare ends) |
| Certification | UL Listed / ABYC |
| Product Type | Battery Cable |
Frequently asked questions
Does this cable come with terminals?
No. It's a bare 25-foot spool with no terminals attached. You cut it to length and crimp your own tinned lugs on the ends, which lets you match the terminal type and hole size to your studs.
Is the black cable positive or negative?
Black is the negative conductor. If you need the positive side of the run, grab the matching Sea-Dog red spool in the same 4 gauge so you've got a proper color-coded pair.
What amperage can 4 gauge battery cable handle?
There's no single number. Ampacity depends on the run length, whether the cable is bundled, and whether it runs inside an engine space. Size it against the ABYC E-11 tables for your specific run rather than a blanket rating, and account for voltage drop over the distance.
What size boat battery cable do I need?
It comes down to your load and your run length. Four gauge is a common pick for battery-to-switch runs, windlass feeds, inverters, and bow thrusters on mid-size boats. For long runs or big continuous loads you may need to go heavier to hold voltage drop down.
Is tinned copper worth it over bare copper?
On a boat, yes. Bare copper wicks moisture into the strands, corrodes green, and its resistance climbs over time. Tin plating on every strand keeps the corrosion out, so the cable holds up for years in a salt and bilge environment.
Is this cable ABYC compliant?
It's UL listed and built to ABYC standards for marine DC wiring. That's what a surveyor and most insurers want to see on a battery run.
