Best Battery Terminal Connectors Reviews 2018 And Buying Guide

A battery terminal connectors are for the purpose of connecting your electrical cables to your battery or any power supply. These devices are essential to maintain an uninterrupted power supply, especially for a trolling motor. Moreover, a car’s terminal and connector is different from a boat. A ship’s terminal is usually made from tin-plated copper. For a car, it is usually lead alloy.

However, there are terminal connectors that are made of zinc and lead alloy. Furthermore, there are some of these devices that have nylon insulators to provide resistance against vibrations. (Updated on: 2nd May, 2018.)

Is a Battery Terminal Connector A Necessity?

A battery terminal connector is necessary to optimize the power usage of your boat. If you have a trolling motor boat, then you need a terminal connector that can withstand vibrations and stress. A connection that doesn’t work properly can lead to a fast-draining battery.

Comparison Table Of Best Battery Terminal Connectors





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Shoreline Marine Terminal Kit

Shipping Weight: 10.4 ounces


ACDelco 3BA35

7.2 ounces

3.6 x 2.2 x 1.7 inches


2.4 ounces

5.7 x 5.4 x 2.3 inches

Top Two Best Battery Terminal Connectors

Shoreline Marine Battery Marine Terminal Kit

The Shoreline Marine Battery Marine Terminal Kit has a distinctive design that can make a car battery compatible for marine usage. This is a great feature if you have spare car batteries at your home. Not only you can save money, but you are also preventing your extra batteries from losing its quality.

The Shoreline Marine Battery Marine Terminal Kit has standard lead terminals. Its wing nuts have plastic coating, next to its conventional lead terminal. Furthermore, these terminals can cater 12-volt and 24-volt electrical applications with ease.


  • Extremely durable and waterproof;
  • ​Anti corrosive properties;
  • ​Water-based equipment;
  • ​Nice battery terminals that fit great;
  • ​High quality replacement Product;
  • ​Easy to connect bolts;
  • ​It is thick paint and prevents the electrical connection( It's area covered by the steel plate);
  • No more searching for "+" and "-" on the battery;
  • ​Look sharp and have easy to connect bolts;
  • ​Fits good on very large batteries, not smaller ones;
  • ​Clamps on nice and tight, zero play. Good stuff;
  • ​These are fit and snug to any size battery terminal;


  • Black one came rusty. Works;
  • ​Piece of crap they dont fit on golf cart rip;
  • ​Very low grade terminals;

ACDelco 3BA35 Professional Battery Cable Terminal

This is another great choice for marine battery terminal connector. The ACDelco 3BA35 Professional Battery Cable Terminal has a sturdy form and construction, which is perfect for boating activities. This cable terminal is extremely durable and waterproof. It also has anti corrosive properties, which is essential to water-based equipment.

Since it is thoroughly engineered, breaking is the last thing you should expect the ACDelco 3BA35 Professional Battery Cable Terminal.


  • Easy to convert any spare battery to a marine battery;
  • ​Suitable For 12 and 24 Volt Applications;
  • ​Standard Lead Terminals;
  • ​Self locking Nuts;
  • ​Specifically solar system batteries;
  • ​Positive screw down needs a 3/8 inch ring terminal end;
  • ​Negative post uses standard 5/16th inch ring terminals;
  • Has great plastic-coated and color-coded wing nuts on the studs, which make them easy to use;
  • ​Great for easy disconnect;


  • Do not over tighten them;
  • Average in all regards, but a fair price;
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