Electric Outboard Motors: A Buyers’ Guide

Trolling engines, also known as electric outboard engines, are an integral part of the boating hardware. They offer you the opportunity to fine-tune your boat’s angle of drifting and also enable you to reach fishing areas with a sneaky approach, minimizing unnecessary noise and disruption of the water. In this post, we’re going to cover all you need to know about electric trolling engines.

When you’re looking to buy an electric outboard engine, note there are a few factors to consider that will eventually affect your purchase. How much will you use the engine as your main engine? How big is the boat that you’re going to install the motor o? Are you going to use it in weedy conditions? Are you looking for an engine that will allow you to fish efficiently along the anchor points or contours pre-mapped on a GPS-operated fish finder? Is it going to be used in saltwater?

What Input Do I Need from the Electrical Outboard?

The capacity of the engine is perhaps the most important factor to consider when buying an electrical outboard for your vessel. It’s going to play a key role in deciding which engine you can purchase. The basic rule is that a thrust of 5 pounds for every 200 pounds of mass (including boat, equipment, and people). For instance, a fishing dingy with a weight of 320 pounds + 2 people with a total weight of 350 pounds+ 50 pounds of gear will need a rating of 18 pounds or more.

Required thrust = (Total Weight in pounds / 200 pounds) x 5 pounds

The Capacity of the Battery Required for a Trolling Motor?

In most situations, we would suggest nothing less than a 12V 105Ah deep-cycle marine battery. This guarantees that you get hours of fishing from your electric boat motor. If, however, you are only using a 34-44 pound thrust engine on a tiny fishing boat.  You can drop the capacity of the battery you’re using; based on how much you’re using the engine in a fishing time, an 85Ah battery will be enough.

How Long Is the Trolling Motor Running on the Power Supply?

The higher the rating of the amp, the more capacity the battery can carry, and the longer it can power the outboard engine. For instance, a 100-amp-hour battery is one that can provide 25 amps of power for four hours (25 amps * 4 hours = 100 amp-hours) before drying up the energy. This is dependent on the engine operating at full power continuously over that period of time and does not take into account inter-use breaks.

Keep in mind, there is a multitude of factors to remember. We need to think about the speed of the engine we’re going to use every day, the environmental patterns, the size of the boat and how much we’re using the engine every day.

The Length of the Outboard Motor You Need

There’s no point in getting all those pounds of propulsion if the propeller stays out of the water! It is vital that the length of the trolley engine is long enough to hold the propeller submerged regardless of circumstances under which you are traveling. A strong thumb rule is that the top of the engine section should be immersed 12 inches well below the water’s surface.

These are some of the main things to consider when looking to buy an outboard electric motor.