To be a really successful fisher, you have to make sure that your fishing equipment is in the best possible shape.
This does also include the equipment and accessories for your fishing boat.
What could be worse than realizing that you ran out of battery power for your trolling motor, when the fishing was really good and you just want to continue fishing? Not much.
That’s why I guess that you can agree with me when I’m saying that using a really good trolling motor battery is really important.
Because of this, I decided to create this review and guide for you, to make it easier for you to choose the best trolling motor battery 2020 for your fishing boat and after your needs.
Disclaimer – This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.
The 10 Best Trolling Motor Batteries in 2021
|VmaxTanks VMAX V35-857||25||35||300|
|Optima Batteries 8016-103 D34M||43||55||870|
|Optima Batteries 8006-006-FFP||38||50||800|
|Mighty Max Battery ML 55-12||38||55||200|
|Mighty Max Battery ML 35-12||23||35||200|
|ChromeBattery Deep Cycle||39||55||300|
1. Odyssey 31M-PC2150ST-M Trolling Motor Battery
On the first place on our list, you will find a great and really powerful battery made by the popular battery brand Odyssey. The 31M-PC2150ST-M battery is specially made for the marine industry, which tells us that this is a great battery to use for a trolling motor. The good thing with this battery is that it’s so powerful, so you can use it to start large engines as well, as it gives a lot of starting power.
Another great function about this battery is the double connectors located on the top of the battery, so you can fit two different connectors depending on which of them you have on the electric trolling motor. The voltage of this battery is 12 volt and got the amazing 100 Ah, which means that you can run your trolling motor for a very long time once the battery is fully charged. If we are checking the Cold crank amperes, we will also find the massive 1150 CCA, which means that it’s really powerful for starting purposes also.
The battery is an AGM battery, which has a lot of benefits like a longer lifetime, longer runtime and no risk of fluids to leak out. Down below you will find the specifications of this battery.
The only downside we found about this battery is the weight and the size of the battery. It’s pretty large and if you are looking for a battery for a smaller boat, or a battery that you are going to carry each time you are going fishing, we recommend you to get a lighter and smaller battery.
This battery works the best for permanent installations in larger boats which needs power to the electric trolling motor. However, because of the great cold cranking amperes, you can use it as a starter battery for the engine also.
Odyssey is a well known brand with great customer support and warranties also. The warranty for this battery is 4 years, which tells us that this is pure quality and a great investment for your fishing boat.
2. Vmaxtanks MR137 AGM Large Trolling Motor Battery
On the second place in the list, we will find another large battery from the brand Vmax. These batteries are known to be used for solar panels a lot, but the marine and solar panel batteries share a lot of the same parameters. This is the MR137 AGM model which is the big brother in the battery models from Vmax.
This is a 12 volt AGM battery, which is great because the thing we discussed before AGM batteries. The Ah is rated at 120 Ah, which is very impressive and this shows us that you can run a trolling motor for a very long time with this battery. This is better than the Odyssey battery mentioned before. The Cold Crank Amperes is rated at 1150, the same as the Odyssey battery, which means that you can use it well as a starter battery for your engine on the boat also.
The design of the battery is really great and you get an easy to carry strap on the top of the battery, which is great when the battery is large and heavy as this one.
However, also this one is really heavy and is better suited for larger boats with permanent installs. The weight is 75 pounds, which is slightly lower than the odyssey battery. The price of this battery is half of the Odyssey battery but the rates are higher? So why is it like that? Well, it’s probably because Vmax isn’t a very known brand and the customer support and warranty are probably not that known to a lot of people. The warranty is also just 12 months, compared to 4 years of the Odyssey battery, which does also might tell us that the quality of the Odyssey battery is slightly higher.
If you are looking for a really powerful and strong trolling motor battery for a great price this should be your choice. But remember that the warranty is not as long as the Odyssey battery and you have to keep that in mind.
3. VmaxTanks VMAX V35-857 Small Trolling Motor Battery
Now before when we have reviewed the big boys, we are going to a smaller battery which is made by VMax Tanks and the model of the one is named V35-857. Also, this battery is made by VMax, which we discussed before that they are known for making batteries for the solar panel industry, but these batteries work excellent for the marine industry, especially good for trolling motors.
If you are looking for a small battery for your smaller boat which is really easy to carry with you every time you are going fishing, this is a really good choice. This is a 12 volts battery which has a rating of 35 Ah, which may not sound like a lot but it’s actually good for a battery of this size. The weight of this battery is just 25 pounds which is very lightweight.
The CCA is pretty low, which tells us that this battery is not that great as a starter battery for an engine, but hey we are looking for a great battery for our trolling motor and not a starter battery. Also, this is an AGM battery which is great for the marine industry.
The height of the battery is 6.6 inch, the length 7.7 inch and the depth of 5 inches, which make it perfect for smaller boats which have limited space. The connectors on the top of the battery is of the O-ring type, so make sure that you have O-ring clamps on your electric trolling motor.
Because this is an AGM battery, it’s completely maintenance free and you just have to charge it between your fishing trips. Remember that this battery is a lot smaller than the others and it have limited power, so it may be a good idea to bring two of these if you are planning on going for longer trips. The warranty on this battery is the same as the big brother, 12 months, which is not the best but it reflects the price pretty well. However this is not a bad quality battery and you can buy it with confidence.
4. Optima Blue Top 8016-103 D34M Trolling Motor Battery
Now on the fourth place we have a battery named Optima 8016-103 Blue Top. For the people who are in the automotive industry, you may have heard of Optima batteries a lot of times, especially if you live in the US. Optima is one of the most known battery manufacturers over the world and known for creating high-quality batteries for all kinds of vehicles. The Blue Top name means that the battery is made for the marine industry, which is exactly what we are looking for here.
The Optima 8016-103 is a pretty small battery with a lot of power. The weight is only 43 lbs and it is rated to 55 Ah and 870 CCA, which is really great for the size of the battery. As usual with Optima, this is also an AGM battery which is great for marine because they are spill proof and maintenance free.
This battery has two different connectors at the top of the battery, which is great because it makes it compatible with more different types of trolling motors. Another great feature with this battery is the ability to mount the battery however you want. If you want to mount it on the side there is no problem with that because of the AGM technology.
Overall, because this is a dual purpose marine battery, this is a really great choice to use it as a starter battery and a trolling motor battery. The reserve capacity is at 120 minutes at 80°F. The Optima 8016-103 battery is really quick to charge and you can charge it to full capacity in 6-10 hours with a battery charger which is charging around 5-10 amps.
If we are looking at the size, it’s a good choice for smaller boats because it’s pretty lightweight to carry, but one big Con we found about this battery is that it’s missing a carrying strap, which makes it better for permanent installs in larger boats. However it’s for sure possible to install your own strap on the battery if you absolutely want it, but ofcourse a lot easier to purchase one with a strap from the factory.
5. Optima Blue Top 8006-006-FFP 34M Trolling Motor Battery
Also here in the 5th place, you will find a battery made by Optima. The model we are talking about is the Optima 8006-006-FFP 34M. Also this is a Blue Top battery from optima which is made for the marine industry. The difference between this and the Optima battery we talked about before, is that this is a bit smaller in size and the weight is lower.
Another thing worth to mention is this battery is designed to be a starter battery, which means that it has a lot of starting power (CCA) and less long-time charging. However, we found that this battery is not as bad for deep cycles as they advertise it as. This is actually really good for a smaller trolling motor and the good thing is that you can use it as a starter battery for your engine as well.
The battery is pretty small, so it fits better in smaller boats with smaller trolling motors and engines. If you want to use this one for a larger boat it’s recommended to use at least two of these batteries. This Optima battery is rated at 800 CCA and a reserve capacity of 100 minutes, which tells us that it’s actually pretty good for both starting and trolling motors.
The Optima 8006-006-FFP is very resistant to vibrations and other damages, which is really good when you are using it at high speeds on the sea, which can cause a lot of vibrations and other bumps. The weight of this battery is just 38 lbs and it measures around 10″ in length and it’s just under 8″ tall.
You will get a 2 years warranty within the purchase of this battery and as you may know, Optima is a really large battery brand, which has good customer support so you do not have to worry if you are getting any problems with the battery. Either this Optima model have a carrying strap, which makes it difficult to carry even if the battery is small in size and lightweight.
6. NorthStar NSB-AGM31M Trolling Motor Battery
On the 6th place, we have a battery made by NorthStar which is far away as known as the Optima batteries. The model of this battery is named NSB-AGM31M which is an AGM battery which you probably could read from the product model name. Because of the AGM technology, this battery has faster recharge than conventional batteries and are maintenance free.
The battery has a length of 12.9″, the width of 6.77″ and the height of 8.74″ with the weight of 75 pounds. As you may suspect, this is a very large battery and it’s really not recommended to use it for smaller boats when you are carrying the battery with you after each fishing trip, even if this model has a carrying strap.
However, this battery has a great both starting and deep cycling capacity which makes it great for larger boats to use it both for starting the engine, powering the trolling motor and other electronics like your fish finder GPS etc. We can see that the CCA is rated at 1150, which will fire up whatever engine you have in all weathers and the Ah of 103, which will make you’re trolling motor running for hours.
Another Pro of this battery is the two different battery terminals, which makes it easy to connect both your starting motor and other electronics on the smaller O-ring terminals. The cons we found of this product is the fact that it’s very large and heavy and will be difficult to carry with you. Another Con is probably that the price is quite high and it’s not a battery for you if you are looking for a cheap battery.
This battery is approved as non-hazardous for air transport and ground sea DOT 49CFR173.159. The NorthStar batteries are manufactured in the USA and the warranty is for 3 years, which tells us that this is a really high quality battery.
7. Mighty Max Battery ML 55-12 Trolling Motor Battery
MightyMax. If you have been in the fishing industry for some time and have owned some boats in your life, you have probably heard of the MightMax Batteries. This is the model named ML 55-12 from MightyMax. These batteries are purely created for the use of trolling motors in the marine industry and I know a lot of people using it for their fishing boats because of the small size and great deep cycling power.
If we are looking at the CCA rating which is just at 200 which is a measurement of the capacity of cold cranking amperes, you may understand that this is a bad choice if you are looking for a battery to use as a starter battery also. If you enter the link to the battery, you will find out that these are sold in 2-pack which is because they are perfectly used in 2-pack for a bit of larger boats with trolling motors. If you have a small boat you can of course buy this one as a single unit also.
The Ampere hour is rated at 55 Ah which is really great for a battery of this size. With the use of two of these batteries as discussed before, you will be able to go out with your trolling motor for a lot of hours even in larger boats. Another Pro we found on these batteries is the carrying straps, which makes them great if you do not have permanently installed batteries in your boat and want to take them out after each fishing trip to remove the risk of getting them stole.
The size of this battery is 9 inches of length, 5.5 inches wide and 9.13 inches height and one battery have the weight of 38 lbs. This is also an AGM battery, which makes it compatible to install in all different positions as there is no fluid inside them that are going to leak out. Another great feature with this is that you do not have to fill it with water or clean the battery terminals.
The only con we found about this battery is the terminal connections. There are only small connections which not all trolling motors uses. If you have large connections on your trolling motor you have to replace them with smaller ones. The warranty is lower than we thought, just 1 year but we have to consider that the price for the battery is pretty low also.
8. Mighty Max Battery ML 35-12 Trolling Motor Battery
Also here we have a MightyMax Battery as the one we talked about before. This is the MightyMax ML 35-12 model which is smaller than the ML55-12 one, which makes this better to use in smaller boats and trolling motors. This battery is also sold in a pair of two, but due to the size of this battery, it’s really not recommended to purchase this if you have a large boat which you are expecting to go out with your trolling motor for several hours.
These batteries are best suited in smaller boats for both permanent installs and temporary installs. The batteries have large carrying straps which makes them really easy to carry out and in from your fishing boat between the fishing trips. The low CCA of 200 does also tell us that this is not very good to use as a starting battery for your engine. These batteries are designed to give a low amount of power for long periods of times for uses like your trolling motor or your fishfinder GPS.
The batteries are rated at 35 Ah each which is actually really great for a battery of this size, especially with the weight of just 23 pounds each. They are also AGM batteries which makes them maintenance free and they can be mounted in any direction if you want to do so.
The downside Con we found with this one is the same as the MightyMax batteries that we discussed before, the terminals are only suited for small O-ring connectors and if you have the larger one on your trolling motor, you have to replace these. The other con is due to the low CCA, this is not a good choice to use as a starter battery.
The lenght of this battery is 7.68″ long, 5″ wide and 7″ high. The warranty of these is the same as the bigbrother ML55-12, just 1 year which is not really impressive in our opinion but as we talked about before, the price is pretty low also.
9. NorthStar NSB-AGM34M Trolling Motor Battery
Also here, we have a NorthStar battery named NSB-AGM34M, which is the little brother of the NorthStar NSB-AGM31M we discussed before. Overall, it has a lot of the same features as the NSB-AGM31M battery, but this one is smaller in size and is better fitted in a bit smaller boats. However, it’s still not a very small battery as the weight is 51 pounds and it’s pretty tough to carry and they are best suited for permanent installs in your boat.
These batteries are designed to be used for all kinds of purposes in your boat. Starting, powering up your trolling motor, fish finder GPS and all other kinds of electronics. The CCA is rated at 880 which will power up the most engines in the marine industry. The Ampere hours is rated at 65 Ah which will make your trolling motor run for a long time. With the batteries of these sizes, there is often enough to fit only one battery instead of two, like a lot of other batteries are designed for. However, if you have a really large boat, you might want two of these also.
The AGM technology makes it spill proof and maintenance free which means that you do not have to fill it up with battery water or clean the battery terminals. Another great feature for the AGM batteries is that they are fast to charge and you can mount it in any direction that you want.
Also this one is having the warranty of 3 years which is really impressive and are telling us that this is a high-quality battery. NorthStar is also a known brand and you can expect the best customer support available.
A great Con of this battery is that it comes with two different battery terminals on each side, which makes it easy to connect both your starting engine and other electronics like the trolling motor and fish finder GPS. The downside we found is the lack of a carrying strap, which makes it difficult to carry with you. The other cons is that the weight is pretty high and the price is not the cheapest, but hey if you want quality, you have to pay for it.
10. ChromeBattery Deep Cycle 55 Ah Trolling Motor battery
In the last place, we have the ChromeBattery which is a battery made for the solar panel industry from the beginning. However, as we discussed before the solar panel batteries and trolling motor batteries have a lot in common and the same specification ratings that we are looking for. This is an AGM battery which makes it spill proof and maintenance free from terminal cleaner and checking the battery water level.
The most of you have probably not heard of ChromeBattery because the brand is not that known in the battery industry. As this is a pure deep cycle battery, this battery is just rated at 300 CCA starting power, which probably helps you to understand that if you are looking for a battery that can be used in combination for both starting and a trolling motor battery, this is not the battery for you.
However the battery is really small and lightweight and the weight is just 39 pounds, which makes it great for smaller boats with smaller trolling motors. What we found a bit disappointing about this battery is the same as the Optima Blue Top batteries, it’s missing a carrying stripe, which makes it difficult to carry between your fishing trips if you do not have a permanently installed battery in your boat.
With this battery you will get 18 months of warranty, which is actually really good for a battery brand that is not that known in the industry. The length of the battery is 9″, height 8″ and width 5.5″ which tells us that it’s small. The Ampere hours is rated at 55 Ah which is really impressive for a battery with this small size.
This is absolutely a great choice for the one who is looking for a small battery used for permanent install in a small or mid-sized boat. You could also always use two of these batteries because the small size, which would create a killer combination for a trolling motor. One pretty big Con of this product is that there is just one type of connection for the battery terminals for this one, which are small O-ring connections. Check this and make sure that your trolling motor have small O-ring connections before making your purchase.
Trolling Motor Battery Buyer’s Guide
Buying the right trolling motor battery does probably seem like a simple task, but it is not really that simple. There are a lot of things to consider before making the purchase to make sure that you won’t get disappointed and make sure you purchase a battery that you can use for a very long time before the next replacement.
Let’s go to the most important factors to look for before you make your purchase.
Things to consider before buying a trolling motor battery
There are a lot of different parameters you should know about before you are purchasing your battery to make sure it fits all your needs. These things are really important to check before your purchase so you make sure that the battery fits the size of your trolling motor.
So is there any difference between a car battery and a trolling motor battery? Yes, there are several different parameters to know if the battery is good for trolling motor or better fitted in a car. Read the information down below under all headers and you will find out which parameters you should check when finding your battery.
The size is probably one of the most important factors to check before you are purchasing the battery. You have to ask yourself if you are going to move the battery a lot and if you have enough room in your boat. If you are going to use a battery that you are going to lift out and in every time you are going fishing, you may need a smaller battery which is easier to carry. If you are having a larger boat which the battery is permanently installed in the boat, you might want to consider buying a large battery. But you do still have to remember to check the width, length and the height of the battery to make sure it fits inside your boat battery holder.
If you have a great amount of space in your boat and you have the battery permanently installed, I recommend you to get an as big as possible trolling motor battery.
If you have a smaller boat which you are carrying the battery every time you are going out and fishing, look for a smaller sized battery.
The parameter “Ah” is an important parameter to check for when you are purchasing a trolling motor battery. The Ah is standing for “Ampere Hour” and you can also see it as “Amp hour” sometimes. The parameter Ah is measured to see for how long the trolling motor battery can deliver 1 ampere for. This might tell you that it’s an important factor to check for when it comes to trolling motor batteries because it’s telling us a bit of how long the electric motor will run with one charge.
It’s actually pretty easy to calculate, all you have to do is to check for how many amperes the electric motor takes per hour and how many Ah the battery has and you will get a clue of how long the motor will run. One thing to consider is a lot of battery brands are measuring the Ah rate for different temperatures and the tests can differ a bit between each other. Check at which temperature the Ah specification is from.
CCA is another parameter that you will find when you are looking for batteries. The CCA stands for “Cold Crank Amperes” and it tells us how much power the battery can deliver fully charged when it’s cold (Normally -18c). This parameter is not as important to consider as the ampere-hour when you are looking for a trolling motor battery because it’s not that often that you need much power at once, especially when it’s that cold outside. However, it can still be an interesting parameter to look for as it can give you a clue of how powerful the battery is at starting other motors if you are going to use it as a starter battery also.
The voltage is a really important thing to check before you are making your purchase. All the batteries in this list are 12 volts and that’s the most common voltages when it comes to trolling motors. However, if you purchase a 24 v battery for example and connect it to your trolling motor, you will most likely damage your trolling motor instantly and it could be very expensive for you. So make sure that you are purchasing a 12 v battery if you have a 12 v electric trolling motor. Also, if you are using two batteries you have to make sure that you wire these up in parallel wiring and not in series. If you connect two 12v batteries in series, you will get 24 v and you will destroy your trolling motor.
The weight is pretty similar to the thing we discussed before, about the battery size. The same rules apply here, if you are going to move the battery in and out every time you are going fishing, check for a lightweight and smaller battery. If you are having a permanently installed battery in your boat, the batteries weight won’t probably be as important to consider. If you have a smaller boat you may need a lightweight battery also because batteries can be really heavy and you do not want that in your smaller boat.
The price is probably the factor that most of us are looking for when purchasing a trolling motor battery. Yes, of course, the price is an important factor to check for. You have to ask yourself, how much do you want to spend on the battery and how much are you going to use it? If you are out there and trolling every day for very long times, you might want to spend some more battery on a good battery so you do not have to replace it every year.
If you are using the battery for a few hours per year, you do probably want to get a cheaper battery and you will be satisfied with that. However, the price does often reflect the quality of the battery and the lifetime is often shorter on cheaper batteries and the runtime will probably be shorter also.
The warranty is a factor that a lot of people are not checking for. Batteries are complicated things and a lot of parts that could get damaged inside them. A small short inside the battery and you won’t be able to use it at all. That’s why its really important to check the warranty of the battery before making your purchase. The most common warranty is around 2 years for a battery, but you might want to check for one with 3-4 years if you are purchasing a quality battery. Also, check recent customer reviews and check if there are any reported problems with the manufacturer’s warranty.
You can check at Amazon’s page for recent customer reviews of the product. This is a really great way to get a lot of different opinions about the product from real customers. You can find the reviews by entering the links I send here and then go to reviews. You can sort the reviews by recent, positive and negative. Do also check the negative reviews, but remember that even the best products get some negative reviews.
Trolling motor battery FAQ
There are some questions that are more common than others when it comes to trolling motor batteries. I have decided to write a few of them here and answer them. If you are not seeing your question in this FAQ section, you can comment down below on the blog post and we will answer your question as soon as possible.
Can I use the same battery for both starting and the trolling motor?
Yes, a lot of these batteries are designed to work both for starting the engine and the use of the trolling motor. However, if you want a battery that can fire up your engine and your trolling motor, it’s recommended to choose one with double battery terminals. It’s also important to check both the CCA and the Ah. The CCA is the starting capacity and the Ah is the Ampere Hours. If you are looking for a battery for both purposes, I can really recommend the Odyssey or the NorthStar Batteries.
Can I use a car battery as a trolling motor battery?
Yes, you can if the car battery is also 12 volts. But however, car batteries do not normally have the same long-time capacity as trolling motor batteries. Car batteries are getting charged all the time by the alternator and the batteries are designed to have a lot of starting power which is required to spin the engine at the start. For a trolling motor, you do not need that starting power, you want a battery that can give a small amount of power for a very long time instead. An important parameter for this is the “Ah” and the “CCA”, if you go up to our buyer’s guide, you will find more information about these parameters.
My connectors for my trolling motor is not the same as the battery, what should I do?
In most cases, you can purchase loose connector clamps or universal ones and replace them on the wires to your trolling motor. But of course, the easiest thing is to check this before you are purchasing your battery to make sure that the clamps fit your new battery. Just make sure that you use proper tools when you are replacing the clamps.
Are these batteries waterproof?
The most newer AGM batteries are waterproof, but as you may now, electricity and water is not a great combination and it’s really recommended to keep the battery dry and fit it at a dry place or with a protection box. A short caused by water can damage both the battery and the trolling motor. If you are looking for a box for this, Minn-Kota has made one that’s really recommended by me. Just make sure you choose the right size. You can find the box here at Amazon: Minn Kota trolling motor battery case.
What happens if I accidentally wired the connections wrong polarity?
In the worst case, you can create a short inside the battery or most likely, inside the trolling motor. However, the most electric motors have wrong polarity protection or fuses and should be able to handle a wrong polarity protection. Just wire up the connections as they should and try it again to see if it works. If the motor is dead, check with another battery and if it’s still dead, check for any fuses.
If you can’t find any burned fused and tried with another battery, it’s time to take it to the manufacturer to let them take a check if it’s possible to repair the electrics. In the worst case, you have to replace the whole motor.