What Gauge Wire For 12V Trolling Motor

Choosing the right size of trolling motor rows is often difficult, especially with all the required wording and calculations. What gauge wire for 12v trolling motor?

If you are having trouble managing your trolling motor properly, I am yours. Installing a new trolling motor is easy but not understandable at first. Trying to determine the size of a motor trolling wire can be frustrating, especially with different technologies and calculations to get an effect for it.

But once you know your motor voltage and amperage, it can be much easier. Following the proper gauge, wiring rules will ensure that you will not die between the battery and the trolling motor. When installing wiring for your trolling motor, it is very important to consider the type of wire you will be using. And what points to be considered for gauge wire.

Wiring for 12-volt trolling motors

There are the following steps for selecting and connecting the gauge wire with trolling motor.

Steps to wiring a 12V trolling motor

  • Step 1: Make sure the motor has no power supply.
  • Step 2: Connect the motor’s positive connector lead (cable) to the battery’s positive (+) terminal.
  • Step 3: Connect the motor’s negative (-) lead to the battery’s negative (-) terminal.

Distance between Battery and Motor

Various factors affect the placement of your battery, such as direct exposure to sunlight, potential hazards, and access to seat space. Therefore, it is not surprising or wrong to keep your battery away from the water. However, it will be necessary to charge this distance by the length of wire you will use.

Following wire manufacturer code and standards, wire gauges always vary in length. Therefore, when deciding on caliber, you should consider the length of time required and consider finding a catalog before entering the market.

Wire Gauge Types

It is also important to note that yarn is primarily based on two tests: water level and normal level. The water level is well known for its height, durability, and sound insulation. It is suitable for general water application.

On the other hand, the type is often used for box cleaning and other endless activities in harsh environments. Although water levels are more expensive than normal levels, you do not have to worry about replacing the wire within a year if you buy the right sample. Wire level wire follows the AWG standard, making it 10-12% higher than wire made in SAE standards.

Wire Gauge Calculation and Selection

When setting up the amperage of your motor with the required wire length. It is also recommended that you also use a circuit breaker between the battery and the motor.

Circuit breakers

In most cases, the most important thing to consider is that the circuit breaker does not pass more current than the wire can withstand to avoid melting. Keep in mind that the gauge of the used wire should also be checked for maximum amperage. For example, you could install a 60 amp amplifier for motors that require a current of 50 or 55 amps.

Total length

In addition, the length of the wire to consider is the long distance from the battery to the motor on the back and the battery (two lengths).

Reduction of stress

I recommend choosing a wire sample using a 3% voltage ring, which is for the most critical system (maximum performance), and a 10% drop, which is for the non-essential system (minimum option) to be sure. Most trolling motor manuals call for a maximum voltage drop of 5%. So, to meet ABYC standards, use a 3% table to calculate an electric trolling motor.


Motor trolley manufacturers provide instructions for wire testing to use, but they do it for the motor’s voltage is 12V, 24V, and 36V will have different catalogs. Using the 12-volt chart below will help you stay calm and check your wiring options for a 24 volt or 36-volt system. In summary, you can follow the steps below to determine the correct wire gauge for your engine:

  • Step 1– Turn your maximum amperage to the nearest 10
  • Step 2 – Determine the total length of wire required for the circuit and rotate to the nearest 10 feet.
  • Step 3– Go to the table below to select your favorite wire sample.

Conclusion Of What Gauge Wire For 12V Trolling Motor

Now that you know more about What gauge wire for 12v trolling motor?  You should expect to find it easy to determine the wire size you need for your trolling motor setup.

Keep in mind that the AWG rating of wire gauge can vary depending on the length of wire you want, and you will probably need a thicker ground gauge wire to power your motor is. It may also be useful to keep in mind that the size of a circuit breaker should suffice to handle the amps of your motor.


1. How many amps does a 30lb trolling motor draw?
The Minn Kota Endura C2 30 transom-mounted trolling motor model (30 “shaft) takes 32 amps/hr to get 30 lbs of torque, this can produce 30 lbs of torque for about 18 amps / h. 40-45 lbs impedance: Approximately 29 amps/hr instead of 42 amps / h of motors used for the same motivation.
2. How many batteries do I need for a Trolling fishing motor?
Most trolling car batteries fall because there is no proper debt. We recommend choosing a deep battery of 12 volts with a maximum capacity of 110 amps, usually 27 batteries. The higher the clock frequency, the longer the output you get long.
3. What kind of battery do I need for my Minn Quarter trolling motor?
Minn Kota Trolling motor will work on any 12 Volt Deep Cycle Lead Acid Battery / Battery. For best results, use a Deepwater battery of at least 110 amps.
4. How long will a 24-volt trolling motor last?
The typical Group 27 battery will provide 25 amps of current for one hour. This type of 30 battery will provide 25 amps of current for about 2 hours. Using your 24-volt motorcycle at high speeds will draw about 25 to 30 amps from the battery.