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Dakota Lithium batteries will give you twice the run time for your trolling motor while lasting 4x longer, providing exceptional lifetime value. Plus Dakota Lithium’s signature LiFePO4 technology will perform at temperatures down to -20 F
Most electric trolling motor will operate with any deep cycle 12-volt marine battery. But for the longest run time and lifespan we recommend lithium iron phosphate (LiFePO4) batteries. Here’s 5 reasons why:
Motor Thrust / Max Amp Draw (A) @ Voltage (V) / Recommended Battery
The total run time of your trolling motor will depend upon the power settings (max amp draw) that you are operating under and if your battery is lead acid or Dakota lithium (see above). It is key to understand how using your trolling motor for propulsion versus spotlock, will dramatically impact the overall runtime of your system. Using a lower power setting = more fishing time!
Step 1: Determine the voltage of your motor. 12V motors are smaller, and more cost effective. They typically requires only one battery. 24V and 36V motors have more thrust and use more power, requiring multiple batteries. If cost is top of mind for you then a 12V motor may be a better choice. If power & performance is the most important then a 24V or 36V system may better meet your needs.
Step 2: Determine the amp draw of your motor. Max amp draw of your trolling motor should be less than < the max amp draw of your battery (also called continuous discharge rate). This means that your motor will never ask for more power than your battery is capable of giving at any one time. For many 12V motors the max amp draw is roughly equal to the lbs of thrust. So if you have a 30 lb motor the amp draw is most likely near 30 amps. 24v and 36v motors use less amps per pound of thrust. It is important to confirm the max amp draw with your motor manufacturer. See chart above for recommended battery size per max Amp draw.
Step 3: Find a Dakota Lithium battery with a max continuous amp discharge that is greater than what your motor needs.
Here’s an example from Minnkota on how many amps their line of trolling motors draw. The larger the lbs of thrust the more power the trolling motor uses.
Please note: this chart is for educational purposes only and is not applicable to all trolling motors. Contact your trolling motor manufacturer for your model’s amp draw and instructions on rigging, including the use of fuses or circuit breakers.
Motor Thrust / Max Amp Draw / Voltage
For a all Dakota Lithium batteries the max continuous amp discharge for a 12 volt battery is roughly = to the total amp hours (Ah). For example a Dakota Lithium 23 Ah battery has a max continuous amp discharge of 24 amps. This is too small for most trolling motors. For most motors you want a bigger battery like the DL 54 or DL 100. One way to create a larger continuous amp discharge is to wire two batteries in parallel. This will double the capacity (run time) and the max continuous amps. For example two Dakota Lithium 23Ah batteries wired in parallel would have the max continuous amps available to power a trolling motor with up to 45-50 lbs of thrust and a capacity of 46 amp hours (Ah). This is enough power for many kayak fishing and other small boats.
One important note, if you wire two batteries in series it will increase the voltage but not the max continuous amp discharge or the capacity (Ah). This is why most 24V or 36V trolling motors use 50 Ah batteries or larger. 24V and 36V motors have a high amp draw and needs multiple batteries in series to meet the power required. Wiring two smaller, 23Ah batteries in series may work, but you would only be able to use your motor for a short amount of time.
Step 4: Decide on how long you want to run your motor for each day. If you are a fish from dawn to dusk person (aka “full day”) you will want your battery to have double the capacity (Amp hours or Ah) of your motors max draw (for example, if your motor draws 25 amps you may want a 50 Ah battery). If you are a half day or run your trolling motor for just half the day you can use a battery where the capacity (Ah) is equal to your amp draw. For example, if you have a motor that uses 50 Amps the DL 54 battery may be more then enough run time for you.
Deciding which battery is right for you, factoring in the time that you plan to be on the water and the applications that you are using your motor for, will determine which Ah battery system is right for you. It is key to understand how using your trolling motor for propulsion versus spotlock, will dramatically impact the overall runtime of your system. You will use more power for extended periods of propulsion compared to spotlock. If your trolling motor is your primary means of propulsion, then we recommend opting for a higher Ah system that your budget will allow such as the 100Ah battery compared to the 54Ah battery.
Here’s the math to calculate run time: (Total capacity of the battery ÷ total max amp draw of your motor) × 60 minutes = Run time for your trolling motor at maximum power setting*
Here at Dakota Lithium we build batteries to last a long, long time. Since 2008 Dakota Lithium staff have been testing our batteries in marine applications. Here’s what we have learned about single vs. multiple batteries wired in series.
Advantages of a single 36V battery
Advantages of a three 12V batteries wired in series
A deep cycle work horse, the DL 54 is built for high performance in the most rugged of conditions. Engineered with Lithium Iron Phosphate (LiFePO4) technology this battery has twice the power, half the weight, and lasts 4 times longer than a lead acid battery. 54 Amp hours of capacity provides a full day of power for mid sized trolling motors or for long days on the open road in your RV. Ideal for deep cycle applications where you need lots of power for a long time.
A multi-purpose work horse, the DL+ 12V 60Ah is built for high performance in the most rugged and varied of conditions. Start your car engine, crank up the car audio, or run your trolling motor or other deep cycle electronics — this is one battery built to power many passions. Engineered with Lithium Iron Phosphate (LiFePO4) technology this battery has twice the power, half the weight, and lasts 4 times longer than a lead acid battery – providing exceptional lifetime value. Built for dual purpose performance the DL+ provides 1,000 cold cranking amps (CCA) and a high continuous discharge rate, making it a great choice for high amp draw applications like starting engines, car audio, heavy machinery, golf carts, or any electronics that require a lot of power at one time. In addition, the DL+ provides the same legendary deep cycle marine performance that Dakota Lithium batteries are known for, giving you lots of power for a long time. This is the most versatile Dakota Lithium battery and includes a terminal adapter kit compatible with most marine, automotive, and deep cycle applications. Easily link in series to create 24V, 36V, or 48V systems. LiFePO4 charger included. Backed up by an 11 year warranty.
Built Dakota tough, this 12 volt lithium battery packs a big punch. Engineered with Lithium Iron Phosphate (LiFePO4) technology this battery has twice the power, half the weight, and lasts 4 times longer than a sealed lead acid battery – providing exceptional lifetime value. 100 Amp hours of capacity provides a full day of power for high amp draw trolling motors or for long days on the open road in your RV. Ideal for deep cycle applications like trolling motors, solar energy storage, or boating, where you need lots of power for a long time. Same performance as our legendary 10 Ah battery, but with 1,000% more capacity. All backed up by a best in class 11 year warranty. LiFePO4 charger included.
Built Dakota tough, this single 36 volt 63 amp hour battery will power your passions from morning to night. 63 Amp hours (Ah) of capacity is optimal for 36v trolling motors with up to 120 lbs of thrust or <60 max amp draw, small electric vehicle motors or any 36v deep cycle application in marine or rugged environments where you need lots of power for a long time. Built to endure, this extended lifespan battery is backed up by an 11 year warranty. Free 36v 8 amp LiFePO4 charger included.
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