What Size Battery For Trolling Motor? Which One Best In 2023

What Size Battery For Trolling Motor

Choosing the right trolling motor battery is quite critical. You need to consider a lot of things while making that decision. A wrong decision can not just ruin your day but even your fishing trip.

So, to help you with that we have come up with this blog full of information and tips on what scale battery to use for trolling.

As you all know that the battery is essential for the electric motor system or any vehicle. But what size battery for trolling motor?

Yet The most common cause of trolling motor battery failure is insufficient charging. You should select a 12-volt deep cycle marine battery with at least a 110 amp hour rating, usually a group 27 battery. You will have more run time if the amp hour rating is higher.

Continue reading to know about trolling motor battery size.

What Size Battery Do I Need For 24V Trolling Motor?

What Size Battery Do I Need For 24V Trolling Motor
Source: dctrollingmotor

The 3 main trolling motor battery sizes are 24V, 36V, and 48V.

Each of these battery sizes comes in different amp-hour (Ah) ratings. The higher the Ah, the longer the motor will run on that battery.

For example, if the motor is rated at 50lb thrust and draws 33A, then it can run for 1.7 hours on a 24V 40Ah battery.

Battery life is determined by the load (weight of the boat, battery, motor, and wind) and the speed you are running. If you are running slower, or your boat is lighter, you will get more runtime.

Is A Group 24 Battery Good For A Trolling Motor?

When trolling, you should be using a deep cycle battery. The trolling motor battery should be recharged every time you are done using your trolling motor, so you should have an extra battery to swap out.

Is A Group 24 Battery Good For A Trolling Motor?

If you are using a group 24 Marine Battery, it is not a deep cycle. So, why are group 24 batteries so popular?

Group 24 batteries are popular for three reasons. The first reason is cost. Group 24 batteries are much cheaper than deep cycle marine batteries. The second reason is physical size.

However, the group 24 battery is much smaller than a deep cycle battery.

The third reason is weight. These group 24 batteries are very light, so they are convenient. The group 24 battery is a good choice for a lot of applications, but it is not ideal for trolling.

How Many Amps Does A 55lb Trolling Motor Use?

The question I get asked a lot is: How many amps does a 55lb trolling motor use? I would like to tell you that it’s a simple answer, but it’s not.

You see, a lot of that has to do with the length of the motor and the speed you’re running it at. In general, a 55lb trolling motor will use around 30 amps at WOT (wide open throttle).

How Many Amps Does A 55lb Trolling Motor Use

That means if you plug a 55lb trolling motor into a 30 amp circuit you should be good to go. Don’t forget to make sure the fuse is up to the task.

A 55lb trolling motor with a 30 amp fuse is a good starting point. If you’re going to be running a 55lb trolling motor on a shore power cord, you’ll want to make sure it’s a heavy-duty cord.

Don’t go cheap or you’ll just have to replace it or have a bad experience.

How Much Power Does An Electric Trolling Motor Use?

An approximate measurement of trolling motor power is that 1 power conversion is equal to 750 watts. In the case of a 12 volt motor with 20 amps, 240 watts are consumed, which is 240/750 = 32 volts.

Important Battery Tips:

There are some important tips that you should know after purchasing the batteries. Please note these tips and follow them for the perfection of your battery. 

  • Batteries should never be mixed, nor should old batteries be mixed with new batteries. 
  • Check the level of wet-cell battery fluid periodically and top it off as necessary 
  • If you store your batteries in the off-season, make sure they are kept cool and dry.
  • Make sure terminal connectors are cleaned regularly with a paste of baking soda and water. 
  • After each use, always recharge your batteries – leaving them in a discharged state will reduce the life and performance of your batteries.

Final Words

Choosing the right size for your trolling motor battery can be a daunting process. You have to consider your body weight, the boat’s weight, the length of the trip you are taking, how much equipment you are bringing, and What Size Battery for Trolling Motor you need.

I hope from this blog, your all confusion will be cleared.