Sea-Dog 6 AWG Tinned Copper Battery Cable, Yellow, 100 Foot Spool
Sea-Dog 6 AWG Tinned Copper Battery Cable, Yellow, 100 Foot Spool — Product description
This is Sea-Dog's 6 AWG marine battery cable, a 100-foot spool of stranded, tinned copper wrapped in yellow insulation and carrying both UL and ABYC certification. It's the wire you reach for on battery banks, windlass negatives, and DC return runs that need to survive salt air for the long haul.
Sea-Dog built this 6 AWG battery cable for the parts of your boat that carry real current. It's a 100-foot spool of stranded, tinned copper conductor wrapped in yellow marine-grade insulation, and it carries both UL and ABYC certification. That last part matters more than it sounds. When a surveyor or an insurance inspector opens up your battery compartment, wire that meets those standards is one less thing they'll flag.
The heart of this cable is tinned copper. Every strand gets a tin coating before it's bundled, and that coating is what keeps salt air and bilge moisture from creeping down the conductor and turning it green. We've pulled apart plenty of old automotive-grade runs on boats that came into the shop, and the corrosion always starts at the cut ends and works its way in. Tinned wire doesn't do that. It's the difference between a battery cable you install once and one you're chasing voltage drop on three seasons later.
At 6 gauge, this is the size you reach for on medium-current DC runs. Think battery-to-battery jumpers in a house bank, windlass negatives, inverter and charger feeds on smaller systems, and DC negative return runs on 12 or 24 volt setups. The stranded construction is what makes it usable. Solid wire this size would fight you at every turn, but stranded conductor flexes around stringers, through bulkhead penetrations, and into tight battery boxes without kinking the way a stiff cable would. Keep in mind that gauge and run length work together. On a short run of 10 or 15 feet, 6 AWG has plenty of headroom. Push it out past 15 or 20 feet on a high-draw circuit and you'll want to check your voltage drop and think about stepping up a size.
The yellow insulation isn't just for looks. Under ABYC color conventions, yellow is commonly used for the DC negative or ground return, so running yellow on your negatives keeps your wiring readable for the next person who opens the panel. And there will be a next person, even if it's just future you at 2 AM trying to trace a fault. Always confirm your polarity before you land a lug, though. Color is a convention, not a guarantee, and you don't want a reversed feed on a DC panel.
A few install notes from experience. Terminate these with quality tinned copper lugs and a hydraulic crimper if you can get one. Hand ratchet crimpers can leave strands loose on 6 gauge, and loose strands mean heat at the terminal, which is exactly what you don't want on a battery cable. Finish each lug with adhesive-lined heat shrink to seal out moisture, especially on anything living in the bilge or exposed on deck. Where the cable passes through a bulkhead or a stringer, protect it with a grommet or split loom. Chafe from engine vibration is one of the most common ways a good cable run eventually fails, and it's completely avoidable with a few minutes of prep.
One practical tip on the spool itself. Keep tension on the cable as you unspool it. The outer wraps on a 100-foot reel can kink if they're allowed to spring loose, and a kink in battery cable is a permanent weak spot. Pull what you need, cut it clean, and you've got a corrosion-resistant, surveyor-friendly run that'll outlast most of the boat. This is honest marine wire for boaters who'd rather do the job once. If you're wiring a full battery bank, rigging a windlass circuit, or just want a reel on hand for the next round of projects, a 100-foot spool of 6 AWG tinned cable is a smart thing to keep in the shop.
Key Features
- 6 AWG (6 gauge) stranded conductor sized for medium-current DC runs like battery banks, windlass negatives, and inverter feeds
- Tinned copper strands resist the salt-air and bilge corrosion that eats untinned wire from the cut ends in
- 100-foot spool covers multiple runs and refits from a single reel
- Yellow insulation follows ABYC DC negative and ground-return color convention for readable wiring
- UL and ABYC certified, so it satisfies surveyors and insurance inspectors
- Stranded construction flexes around stringers, through bulkheads, and into tight battery boxes without kinking
- Marine-grade insulation built to live in engine spaces, bilges, and exposed deck 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 | Stranded Conductor; 6 Gauge; Yellow; 100 Foot Spool; Tinned Copper Conductor; UL/ ABYC Certified |
|---|---|
| Brand | Sea-Dog |
| Manufacturer | Sea-Dog Line |
| Manufacturer Part Number | 8006032 |
| UPC | 035514800105 |
| Wire Gauge | 6 AWG |
| Cable Type | Battery Cable |
| Conductor Material | Tinned Copper |
| Conductor Construction | Stranded |
| Insulation Color | Yellow |
| Spool Length | 100 Feet |
| Certifications | UL / ABYC Certified |
Frequently asked questions
What gauge and length is this cable?
It's a 6 AWG (6 gauge) conductor on a 100-foot spool. That's a common medium-current size for battery banks, windlass negatives, and inverter or charger feeds on smaller systems.
Is this tinned copper?
Yes. Every strand is tin-coated before it's bundled. Tinning is what stops salt air and bilge moisture from corroding the conductor and creeping down the wire from the cut ends, which is the usual failure on untinned automotive-grade cable.
Is it UL and ABYC certified?
Yes, it carries both UL and ABYC certification. That's what a surveyor or insurance inspector wants to see in your battery compartment.
What does the yellow insulation mean?
Under ABYC color conventions, yellow is commonly used for the DC negative or ground return. Running yellow on your negatives keeps the wiring readable for whoever opens the panel next. Always confirm polarity before you land a lug, though, since color is a convention and not a guarantee.
What crimper do I need for the lugs?
For 6 gauge we recommend tinned copper lugs and a hydraulic crimper. Hand ratchet tools can leave strands loose at this size, and loose strands cause heat at the terminal. Finish each lug with adhesive-lined heat shrink to seal out moisture.
Can I use it for a windlass or battery-to-battery run?
Yes, those are exactly the jobs 6 AWG is sized for on smaller and medium systems. Just match the gauge to your run length. Past roughly 15 to 20 feet on a high-draw circuit, check your voltage drop and consider stepping up a size.
How do I keep it from chafing through?
Protect the cable with a grommet or split loom wherever it passes through a bulkhead or stringer. Chafe from engine vibration is one of the most common ways a cable run eventually fails, and it's easy to prevent.
Will 6 AWG resist corrosion in the bilge?
The tinned copper conductor is built for that environment. Pair it with adhesive-lined heat shrink on the terminations and the whole run holds up to bilge and deck exposure far better than untinned wire.
Any tips for unspooling the 100-foot reel?
Keep tension on the cable as you pull it off. The outer wraps can spring loose and kink, and a kink is a permanent weak spot in battery cable. Pull what you need, then cut it clean.
