Compared to traditional fuel boats, electric boats are more convenient and cleaner, and they don’t make much noise when traveling on the water. But when you choose batteries for your boat, have you ever had a hard time knowing how to choose the type of battery and what battery is suitable for the boat. Actually lithium batteries are a good choice for fishing boats. Below we will introduce you how to choose the right lithium battery for your boat and related issues.

How to choose the right lithium battery for trolling motor?
Battery Power: When choosing a lithium battery for your trolling motor, the main thing is to look at the power of the lithium battery first, you want to make sure that the power of the lithium battery you choose matches the power under the trolling motor so that when you are using the boat, it will run smoothly. If you choose a lithium battery with too much power, it may cause the trolling motor to burn out, and if you choose a lithium battery with too little power, the maximum speed of the boat will definitely be reduced.
Battery Capacity: The capacity of the lithium battery directly determines the distance your boat can travel and safety issues. You don’t want your fishing experience to end when your boat runs out of power. When choosing a lithium battery for your trolling motor, you need to make sure that the capacity of the lithium battery is enough to keep you from running out of power while you are trolling. If you are fishing for a longer period of time, you must choose a high capacity lithium battery.
Battery Weight: the weight capacity of the boat is also considered in the selection of lithium batteries, to ensure that after the installation of lithium batteries, the boat can also be placed on other items, after all, the boat in the fishing process will have fish fishing, increasing the weight of the boat.
Battery Size: The general fishing boat space is not very large, if you choose the lithium battery size is large, in your already small boat occupies a lot of space, it will reduce the comfort of your fishing.
Charging efficiency: For anglers, efficient charging determines whether they can fish for a long time. However, the charging efficiency of general lithium batteries is relatively high, but if you buy a cheaper lithium battery, its charging efficiency may not meet your requirements. It is recommended to choose a lithium battery with fast charging efficiency within your budget for a better fishing experience.
Lifespan: The lithium battery in your fishing boat is to make the boat more convenient to use, so the lifespan of the lithium battery will determine whether you need to replace the lithium battery again in the future. In the process of choosing lithium batteries, try to make the service life of lithium batteries more than the service life of the boat, you don’t have to worry about the waste of lithium batteries due to long service life, lithium batteries can be reused twice.
Waterproof grade: In the process of fishing, it is inevitable that there will be water on the boat. The lithium battery you choose should have certain waterproof performance. Generally speaking, the waterproof rating of lithium batteries are IP65, IP67 and IP68, in fact, in daily fishing, IP65 lithium batteries are enough to use. However, you can also choose IP67 lithium batteries, which can be used even if there is water infiltration in your boat.
Advantages of using lithium batteries for trolling motors
High energy density: Lithium batteries have great energy density and can provide more energy to a trolling motor than the same volume of lead-acid batteries. This is especially important for boats with limited space, boats can provide a longer range using lithium batteries, providing a complete experience for your fishing.
Long lifespan: Generally speaking, as long as your lithium battery is of high quality, it can meet the long time use of trolling motor. If you want to change the boat later, the lithium battery can be directly disassembled for secondary use, reducing the running cost.
Low self-discharge rate: Generally, you will not go fishing in winter, and the boat will not be used for a long time in winter, in which case the lithium battery will be left for a long time, but the low self-discharge rate of lithium batteries can still maintain a high level of power and reduce power waste.
Maintenance free: lithium batteries do not require maintenance in the use of the process, do not need to spend time for maintenance, the daily use of the correct use of lithium batteries can ensure the efficiency of the work. For example, general lead-acid batteries need to regularly check the state of lead-acid batteries so that the lead-acid batteries run again, but lithium batteries do not have this need at all.
Disadvantages of lithium batteries for trolling motors
High cost: the important raw material of lithium battery is lithium salt, but lithium salt itself is relatively small in nature, and only part of the region, so the raw materials for manufacturing lithium batteries may need to be imported, resulting in lithium batteries manufacturing cost is relatively high, and naturally lithium batteries are also high in the unit price, which will have a significant impact on the total cost of trolling motors.
System complexity: lithium battery output current will have a certain degree of volatility, in order to ensure that the power for the stable use of the boat, generally have to configure other equipment to use together, for example, current sensors or circuit controllers, etc., to avoid lithium batteries will be short-circuited or over-discharged.
Solution
Use used lithium batteries: generally new lithium batteries will be more expensive, but the price of used ones is cheaper. However, when choosing a used lithium battery, pay attention to the remaining service life of the lithium battery and whether the basic performance is complete. Try to buy used lithium batteries from reputable sellers.
Optimize the system: Reduce unnecessary components and unnecessary functions of the system, reduce the complexity of the system. Defining lithium batteries with clear functions and interfaces can make the equipment easier to connect and maintain while reducing overall complexity.
Conclusion
We have provided the steps in selecting a lithium battery for trolling motors, you can follow the above steps to select the right lithium battery for you. The many advantages of lithium batteries provide a lot of convenience for the use of trolling motors, but inevitably there will be some small problems, we also provide you with solutions, hope to help you.
FAQ
Yes, boats are usually equipped with batteries, but they are usually starter batteries. If you use a starter battery to power your trolling motor, the starter battery will run out of power very quickly, and the boat may not be able to run when you are leaving because the starter battery is dead. Unless, of course, you are stranded on the river. That’s why it’s best to have a lithium battery for your trolling motor.
Lithium batteries are suitable for trolling motors. The high energy density of lithium batteries and their lighter weight reduces the weight-bearing stress on the boat. They also have a higher depth of discharge, which avoids frequent charging and discharging and provides a higher fishing experience.
Generally speaking, we use lithium cobalt acid batteries in trolling motors, and basically all electric devices can be used. For example, lithium metal batteries and lithium ternary batteries, which can provide a large amount of current in a short period of time, are less suitable for boats and can be more expensive.