My Account
Shopping Cart

Pro Mariner 51805 DC Cable Extender 5 Foot Marine Battery Charger Extension

Manufacturer

Pro Mariner

<h3>Pioneering Marine Power Solutions for Over Four Decades</h3><p>Pro Mariner was founded over 40 years ago with one mission: to make boating more enjoyable by pioneering fully automatic, on-board marine battery chargers. Today, Pro Mariner is the industry leader in marine and mobile battery charging, trusted by recreational boaters, tournament anglers, and professional marine operators worldwide. Now part of Navico Group, the brand continues to innovate advanced power management solutions that keep vessels energized and ready for adventure.</p><h3>Comprehensive Marine Electrical Solutions</h3><p>At the heart of Pro Mariner's product lineup are their <a href="/7504-pro-mariner-battery-chargers-200141">battery chargers</a>, which range from compact waterproof models to sophisticated multi-bank systems with digital controls. Pro Mariner chargers can sense increased demand from auxiliary batteries and divert up to 100% of available power to that battery, while being fully temperature controlled and microprocessor controlled to prevent overcharging. These chargers are specialized for all marine battery chemistries including flooded, AGM, gel, and lithium (LiFePO4), using digital multi-stage charging technology that ensures efficiency and longer battery life.</p><p>Beyond charging, Pro Mariner offers critical electrical components including <a href="/7504-pro-mariner-inverters-200588">inverters</a> that deliver pure sine wave AC power for sensitive electronics and high-demand appliances. The ProMariner True Power Inverter Chargers can switch near instantaneously to backup power when AC power is interrupted, making them ideal for backup systems running sensitive equipment like computers and printers. The brand's <a href="/7504-pro-mariner-battery-isolators-voltage-sensitive-relays-200144">battery isolators and voltage sensitive relays</a> ensure proper power distribution across multiple battery banks, while their <a href="/7504-pro-mariner-galvanic-isolators-200465">galvanic isolators</a> protect against corrosion caused by stray electrical currents in marina environments.</p><h3>Built for the Marine Environment</h3><p>Pro Mariner products feature IP-rated waterproof construction, corrosion-resistant components, and robust design engineered specifically for harsh marine environments. The ProSport and ProNautic series exemplify this commitment, offering distributed on-demand charging technology that intelligently allocates power where it's needed most. Pro Mariner won the 2010 IBEX Innovation Award, recognition that underscores their position at the forefront of marine electrical innovation.</p><h3>Why Marine Professionals Choose Pro Mariner</h3><p>Whether you're maintaining a fishing boat's trolling motor batteries, powering a yacht's house bank, or managing electrical systems on a commercial vessel, Pro Mariner delivers reliable performance. Professional boat operators worldwide trust their ProNautic battery chargers to keep devices operating. The brand's products are designed for straightforward installation and automatic operation, allowing boaters to focus on what matters most—enjoying time on the water. From their <a href="/7504-pro-mariner-hvac-cut-off-switch-4209">HVAC cut-off switches</a> that protect climate control systems to their comprehensive charging solutions, Pro Mariner provides the complete electrical toolkit for modern marine applications.</p>

Part Number

51805
06/21/2036 3:43 PM
Sale Price

$21.04

In Stock (6)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Pro Mariner 51805 DC Cable Extender provides a 5-foot extension solution for marine battery chargers when standard cables don't reach bow, center mount, or stern battery compartment locations. This universal design works with all on-board marine battery chargers.

Key Features:

  • Rated up to 30 amps for high-capacity charging systems
  • Color coded cables for quick and easy installation
  • Dual inline waterproof fuses for maximum circuit protection
  • Corrosion resistant tinned 12 AWG copper wire with gold plated hardware
  • Slide and snap fully insulated connection covers
  • No cutting, stripping or splicing required—plug and play installation

Built for the harsh marine environment, this cable extender features waterproof construction and marine-grade components that resist corrosion. The fully insulated connection covers provide additional protection while the dual inline fuses safeguard your electrical system. Perfect for boats where battery compartments are located away from the charger mounting location.

Products specifications

Amps

Up to 30

Length

5'

awesome prices!!!!

The part I needed and quick delivery

Good

quick and simple

super fast shipping!!!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy