Battery Selection

The battery is a critical element of your electric motor system. A high-quality deep cycle marine battery should always be used. Unlike automobile batteries, deep cycle marine batteries are designed to be run down to a discharged state and then recharged. Note: To extend the life of your battery, always recharge after use. Most trolling motor batteries fail due to lack of proper charging.

Click here for more information on battery selection and power issues. 

Battery Recommendations

We suggest selecting a 12 volt deep cycle marine battery with at least a 110 amp hour rating, usually a group 27 size battery. The higher the amp-hour rating, the more run time you will receive. If an amp hour rating is not available, select a deep cycle battery with a minimum of 180 minutes reserve capacity. Note: A starting battery is not suitable for use with an electric trolling motor. Starting batteries are rated in cold cranking amps (CCA)or Marine Cranking Amps (MCA); both ratings have no relevance to deep cycle performance. 

Using a 12-volt Battery for a 24-volt Motor

While it is not recommended and depending on the model of motor, you can run a 24-volt motor off of a 12-volt battery. For a cable steer or hand-controlled model this will not hurt the motor, but it will considerably affect the performance of the motor. However, an electric steer motor, such as, the PowerDrive, Terrova, or Ulterra cannot be used on lower voltages. 24/36V Terrova, Ulterra, and Ultrex will not even power on at below 18 volts

Lithium Ion batteries

  • The LiFePO4 Lithium batteries can be used with our motor. When using lithium batteries, you want to ensure the battery(s) provide(s) enough continuous discharge amperage to run the motor at its max amp draw. The chart below shows the max amp draw by motor thrust. If the motor is not getting enough amperage, it will have issues including working for a short time and then shutting off, being able to turn on the motor but not turn on the prop, steering issues, issues with i-Pilot and i-Pilot Link such as Spot Lock not working or being erratic. If you are having any issues with your motor and you are using Lithium batteries, verify you have enough continuous amperage available for the motor to pull its max amp draw.
  • Power Output
    Lithium Batteries maintain higher voltages for longer.  Motors engineered to make the most of flooded lead acid batteries can be damaged by the higher power output.  To prevent this damage when using Lithium batteries you should not run your motor at its highest speeds, staying at 85%/Speed 8.5 or lower.

Battery Life

The length of time your batteries will last can vary based upon battery amp hour rating, boat size and weather conditions. Generally, you should get a typical day of fishing on a single charge. We suggest selecting a 12 volt deep cycle marine battery with at least a 110 amp hour rating. You can use the chart below and this formula for determining Estimated Runtime.mceclip0.png


For more information review these instructions on Selecting the Correct Batteries, click on the guide or watch the video below. 



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