![]() When calculating runtime, we cannot determine amp draws at less than max amp draw as the boating conditions like boat weight, current, and wind will affect the actual amp draw. This link will walk you through creating parallel connections with additional batteries. If your battery(s) do not have a high enough Ah, you can connect additional batteries in parallel to increase the runtime. The chart below will show the max amp draw for your motor based on the thrust. If you have a lower Amp Hour rating, you will want to calculate the runtime for your motor. ![]() As a general rule, we recommend a 110 amp hour (Ah) rating per battery for 6-8 hours of runtime. This link will take you to a downloadable PDF with the formulas for calculating Approximate Runtime, Approximate Speed in Miles per Hour and Approximate Horsepower. The battery(s) for your trolling motor need to provide sufficient amperage and have a high enough amp hour rating to provide power for your motor usage. Quick Disconnects and Plug and Receptacles.It is always a good idea to check your batteries regardless of how old they are. Overly deep discharges will cause sulfation that will reduce the batteries ablity to provide power, damage from shock and vibration can destroy battery performance. As vatteries age, they will have less life per charge. Batteries lose power over time if they have been sitting unused. If you are having issues with your trolling motor, the first step in troubleshooting is to check the power to the motor. If your trolling motor is not getting enough power, it will not work properly.
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