Mercury – Battery Cable (30 ft) | Rigging Accessory | 84-8M0189596

Overview
This 30-foot battery cable is built for boats where the battery and engine sit far apart. Instead of trying to stretch a short cable or piece together a bunch of smaller ones, this lets you run one clean line all the way through. With a proper full-length cable, your electrical system usually feels steadier—better starts, fewer power dips, and less guesswork when things get busy on the water.

Key Features
 • 30-Foot Length – Made for long battery-to-engine runs.
 • Heavy Marine Cable – Moves power without noticeable drop.
 • Flexible Routing – Easy enough to snake through rig tubes and tight spots.
 • Tough Outer Jacket – Built to handle spray, heat, and vibration.
 • OEM Quality – Matches Mercury’s wiring standards for reliability.

Engine & Boat Compatibility
 • Single- and multi-engine setups
 • Outboards and stern drives
 • SmartCraft and DTS systems
 • Main battery-to-engine power routes

Performance & Practical Benefits
A cable that actually fits the run makes the whole system calmer. You don’t deal with voltage sag from splices or sketchy connectors, and the engine gets a clean feed every time you turn the key. Accessories run steadier, and you see fewer weird electrical hiccups—something any boater can appreciate.

Why Buy OEM
OEM cables last longer, fit right, and use proper marine insulation so you’re not replacing them every season. They also help prevent the low-voltage weirdness that cheap cable tends to cause.

FAQ
Q1: When should I use a 30-foot cable?
A: When your battery is mounted well away from the engine or the route winds through the boat.

Q2: Can I cut or splice it?
A: Not ideal—splices corrode and weaken the power feed.

Q3: Safe in saltwater?
A: Yes. Just keep the terminals clean.

Q4: Anything to watch during the install?
A: Make sure the cable isn’t rubbing on sharp metal or getting pinched.

Q5: What if I still see low voltage?
A: Check the battery, grounds, and main connections—those cause most power issues.