The Best Trolling Motor Battery Reviews & Buying Guide

Dependable trolling motor batteries work wonders to help you get the best out of your boats when you go out fishing. As with most electrical devices, trollers require specific batteries, which can gradually discharge electricity over an extended period.

In today’s list, we’ve included nine trolling motor batteries that give superior performance and great value for your money as well as information about each battery’s capabilities, such as its total capacity, size, and weight.

It can be challenging to get a specific battery for your particular troller needs, but this list will give you all the guidance you might need. We’ll get into battery buying tips after having a look at the best trolling battery reviews on the market. Hopefully, our list of the best trolling motor batteries and their reviews can help you decide whether the strengths of each battery are worth the weaknesses.

Let’s motor!

 

 

Our top pick on this list is the Expert Power 12-Volt 33-Ah Deep Cycle Rechargeable Battery. It can quickly recover from near-complete discharge. It is a compact battery that will perform great with your trolling motor without using up too much space on your fishing boat. While it is a bit on the pricey end, the quality of the battery makes up for it.

 

 

The Best Trolling Motor Batteries Are:

1. Expert Power 12-Volt 33-Ah Deep Cycle Rechargeable Battery

ExpertPower 12v 33ah Rechargeable Deep Cycle Battery [EXP12330] Replaces 34Ah, 35Ah, 36Ah

Expert Power is a brand that’s known for making lead-acid batteries suitable for a variety of applications including wheelchairs, uninterruptible power supplies, general electronics, home security systems, medical systems, and trolling motors. It is an AGM battery that is maintenance-free and can operate in any climate.

 

Key Features

  • A brand well known for making lead-acid deep cycle batteries for a variety of applications, including trolling motors
  • Well-accepted and of high quality (12-volt, 33-Am-hours deep cycle battery)
  • Meets ISO standards for quality, health, and safety
  • Runs 16 hours before you need to charge

 

What We Like

We like the fact that this is a well-known brand that has a reputation for making reliable batteries that are useable for a variety of purposes. If the battery is suitable for other uses, such as wheelchairs and UPS systems, then it can surely work for our trolling motors, which it can run for an average of 16 hours before it needs charging. We also like the fact that you can take it fishing in different weather conditions and requires little or no maintenance.

 

What We Don’t Like

Most online sellers sell this product in two-packs. We only need one battery for our trolling motor. It is a waste of money to buy a second battery unless you really can spare the money to keep one in storage.

 

Pros

  • Well-known brand name
  • Can be used in marginal weather
  • AGM batteries can be operated in a wide variety of temperatures
  • Maintenance-free
  • Excellent performance

 

Cons

  • Must be bought as a two-pack
  • Not specifically for maritime use

 

This one is a solid, reliable choice for your fishing needs. The battery you buy in the summer can still serve you well in the winter because it is designed to operate in all climate conditions. If you can afford to buy two batteries at once, go ahead and purchase this excellent battery.

 

Overall Rating — 4 of 5

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2. Mighty Max ML35-12 12-Volt 35-AH AGM Deep Cycle Battery

Mighty Max Battery ML35-12 - 12V 35AH U1 Invacare Pronto M50, M51, M61, M71, Booster Battery - 2 Pack Brand Product

The Mighty Max’s deep cycle batteries have a great all-purpose design that can be used to power your trolling motors. These are AGM batteries that utilize a technology that ensures that no toxic fumes come out when in use.

 

Key Features

  • 35 Amp hours 
  • Comes with full charge
  • Deep cycle battery made to give you the power that you need for fishing 
  • Used for emergency lighting, portable tools, motorcycles, electronics, golf carts, and garden tools
  • Maintenance-free battery provides many years of service and trouble-free operation for trollers
  • 30-day refund, 1-year warranty

 

What We Like

We like that the Mighty Max sports a compact and lightweight design. Space and weight are at a premium on a boat, so options that are lighter weight and more compact are preferred. We also like the relatively low price of the Mighty Max. Since it is just a backup power supply for the troller, a reasonably priced battery like this one gives a high quality performance to meet our needs with hardly any maintenance.

 

What We Don’t Like

We don’t like the lack of a wireless harness. This means that it will take a bit of extra work to adapt the Mighty Max for use on a boat.

 

 

Pros

  • Lightweight design when compared to competitors
  • AGM batteries are safer and more reliable
  • Holds charge well
  • Reasonable price
  • Ready to use out of the box, no charging needed

 

Cons

  • No wireless harness for external attachment
  • Not specifically for maritime use

 

If you want an affordable battery that gets the job done, you might pick the Mighty Max. Some assembly is required to use it for your boat, but then, you can tell yourself you got the best deal while you are installing it.

 

Overall Rating — 3.5 of 5

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3. Universal Power Group Wilderness Tarpon 12-Volt 35-AH Battery

Universal Power Group 12V 35AH Wilderness Tarpon 100 Kayak Electric Trolling Motor AGM SLA Battery

The Wilderness Tarpon is a 12-volt 35-AH battery that uses sealed lead-acid for performance and safety. Due to the contents of the cell, it is not surprising that the case has to be securely sealed for maximum protection.

 

Key Features

  • 35 Ah
  • Comes out of package with a charge
  • Sealed-lead-acid AGM battery for better performance and safety
  • Also used for golf carts, garden tools, emergency lighting, and security applications
  • Spill-proof battery for any operation position
  • Built for reliability, safety, and longevity (3–5 years usage time)
  • 1-year warranty

 

What We Like

We like the fact that this battery is built to last. The manufacturer boasts that it is designed to perform for 3 to 5 years before it needs replacement. The lightweight design is great too for trolling motors mounted on small boats.

 

What We Don’t Like

The Universal Power Group has virtually no presence online. This could mean that the product is new to the market, or it could mean that no one wants to buy the brand. We also believe that the price point is too high.

 

Pros

  • Lightweight (24 pounds)
  • Long warranty means the manufacturer is willing to stand by their product
  • High performance
  • Charging with standard car battery charger supported

 

Cons

  • High price point
  • Little online presence
  • Not deep cycle

 

Overall, the Universal Power Group Wilderness Tarpon 12-Volt 35-AH battery is a superb choice for your trolling motor. It is a bit expensive, but you know you are buying quality considering the length of the warranty.

 

Overall Rating — 3.5 of 5 stars

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4. Universal Power Group 12-Volt 100-Ah AGM Deep Cycle Battery

Universal Power Group 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery 12V 24V 48V

For those of you who are gluttons for power and find the 35-Ah too underpowered to meet your needs in trolling motor batteries, the 100-Ah model from Universal Power Group just might fit the bill.

 

Key Features

  • 100 Amp hours
  • Latest in AGM batteries
  • Leak-proof
  • Deep cycle
  • Weighs over 63 pounds

 

What We Like

This battery is rated to provide up to five hours of power at medium speed on most trolling motors. In case your primary motor fails, you can use this to provide propulsion all the way to shore or to find help.

 

What We Don’t Like

We don’t like the weight and the price, but considering that this battery is supposed to deliver three times the power of a 35-Ah battery, these make sense. The size is also going to be a problem on smaller boats.

 

Pros

  • Top performance in any position
  • Large power reserve
  • AGM battery — safe leak-proof operation
  • Recharges quicker than other deep cycle batteries
  • Can also be used in medical mobility tools and electric vehicles apart from trollers
  • Designed to release approximately five hours of run time at medium speed on most trolling motors

 

Cons

  • More than double the weight of a 35-ah battery
  • Rather bulky

 

If the usual 35-ah battery is not enough to meet your needs, this battery will be more than enough for you. Just be ready with your wallet.

 

Overall Rating — 3.5 of 5

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5. Interstate Batteries 12-Volt 35-Ah Deep Cycle Battery

Mighty Max Battery 12V 35AH INT Battery Replaces Interstate DCM0035 Wheelchair - 2 Pack Brand Product

This is a compact battery with a capacity of 35 amp hours designed to be maintenance-free. It will give you reliable performance and long-term power for your stroller motors.

 

Key Features

  • Built for both reliable and long-term power
  • Can be used for a variety of applications
  • Sealed-lead deep cycle battery
  • Deep discharge usage
  • AGM batteries
  • Can serve you for 5 years
  • Deep cycle 
  • Maintenance-free and performs efficiently for years

 

What We Like

We like the compact and lightweight design — this battery will fit in any boat for sure. Plus there’s no maintenance needed. As it’s meant to last for up to five years, it can likely survive extended use on your trolling motors too. It’s also a plus that this brand is well-received online. The lack of negative reviews is encouraging. 

 

What We Don’t Like

We noticed that the consumer complaints about this battery tend to come from inconsistent manufacturing quality. You have a small chance of needing to return the unit you bought. We don’t like the odd shape and the need for an adapter to use it for most conventional applications either.

 

 

Pros

  • Not overly bulky compact
  • Lightweight design
  • Maintenance-free
  • Meant to last for five years
  • Holds charge well
  • Great performance

 

Cons

  • Abnormal battery size
  • Connections are non-standard

 

This product is an inexpensive compact battery that is intended to meet your motors’ power needs without breaking the bank. However, going for this option might require you to do some extra work before you can use it on board.

 

Overall Rating — 3.5 of 5

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6. UpStart Battery Wilderness Tarpon 100 12-Volt 35-Ah AGM Battery

UpStart Battery Replacement for 2003 Honda TRX250 Recon, ES 250 CC Factory Activated, Maintenance Free, ATV Battery - 12V, 10Ah, UB-YTX12-BS

Upstart is unique among our picks of AGM batteries today because they have a two-year warranty. So, this could be the battery for those of you who want a long-lasting maintenance-free option.

 

Key Features

  • Specifications: non-OEM 12-V
  • 35 Ah capacity
  • Intended as a replacement for Wilderness Tarpon 100 batteries
  • Not overly bulky and delivers stable power
  • Lead acid battery
  • Has a top L1 terminal that you affix via screws and washers to your trolling motor
  • Designed for years of maintenance-free and safe power with little to no user interaction
  • A reliable battery when your old battery fails and needs replacement

 

What We Like

We like the L1 terminal that you can affix to your trolling motor with minimal extra modifications. We also like the fact that the warranty is twice as long as that of the best entries on our list.

 

What We Don’t Like

We are a bit worried that this model doesn’t have much user feedback. It could mean that this is a new model that people haven’t heard about yet, or it could mean that it is not anyone’s preferred option. The brand itself is well-known, but there’s little about it online.

 

Pros

  • Long warranty
  • Leak free AGM batteries design
  • The L1 terminal for easy installation on trolling motors

 

Cons

  • Users don’t have anything to say about it

 

If you need a battery that gets the job done at an affordable price point, this is the battery for you.

 

Overall Rating — 3.5 of 5

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7. Power Star Deep Cycle 12-Volt 55-Ah AGM Marine Battery

DieHard 38232 Advanced Gold AGM Battery - Group 34

The Power Star Deep Cycle 12-Volt 55 Amp Hours battery is specially designed for marine use and delivers almost double the power of a battery with 35 amp hours. It’s a rock star among marine batteries.

 

Key Features

  • Specifications: 12-V, 55 Ah Marine Battery
  • Sealed-acid AGM battery technology
  • Not only spill-proof but also can be mounted upside-down
  • Very safe to use
  • Deep cycle battery

 

What We Like

We appreciate that the battery has almost double the capacity of the 30 amp hours, but the price is a little bit higher too. The no-spill design is so strong that the battery can be mounted upside-down without fear of spills.

 

What We Don’t Like

We don’t like that the battery only lasts for three years of use compared to other brands, which are intended to last for five years.

 

Pros

  • High power capacity
  • Reasonably priced
  • Excellent leak-proofing

 

Cons

  • Short service life

 

This deep cycle battery is reasonably priced and has a higher than average power capacity among those reviewed. However, the cost is deceptive since the battery is only guaranteed to work for three years.

 

Overall Rating — 4 of 5

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8. VMaxTanks VMAX857 12-Volt 35-Ah Deep Cycle AGM Marine Battery

VMAX MR127 12 Volt 100Ah AGM Deep Cycle Maintenance Free Battery Compatible with Boats and 40-100lb, minnkota, Cobra, sevylor and Other trolling Motor (Group 27 Marine Deep Cycle AGM Battery)

The VMaxTanks 12-Volt 35-Amp-hours deep cycle marine battery is the first on our list. It is a compact design AGM battery, which makes it a spill-proof nonhazardous battery and a worthy addition to your boat’s cargo.

 

Key Features

  • Amperage: 35 Ah
  • Dimensions: 6.6 in × 7.7 in × 5 in
  • Will fit trolling motors as well as other motor types
  • Uses AGM between the plates; technically classified as a non-hazardous battery
  • Deep cycle
  • 8–10 hours of operation time
  • Designed to last for a long time and to rebound from deep discharges

 

What We Like

We like that this deep cycle battery has a compact size that allows it to fit in most places where you will need it. The small size is even more important in motors for small boats. We also like that it is an AGM battery and is spill-proof, making it safe to use in a lake or the ocean. The last thing we want is to dump dangerous materials into the water accidentally, so we’re glad they included these great features.

 

What We Don’t Like

We aren’t fans of the price. We know that quality costs money, but most users might shy away from the price tag. Also, the quality of the screws that come with the battery is inconsistent. Sometimes, they can be ill-fitting.

 

Pros

  • Fast recharge rate
  • Recovers quickly from deep discharges
  • Compact size
  • Among the top marine batteries

 

Cons

  • High price
  • Some of the components are ill-fitting

 

The VMAxTanks VMAX857 is a solid deep cycle battery for most applications. Its compact size helps give it one of the best ratings since the trolling motor battery has to compete with the other items on your boat, so the smaller it is, the better.

 

Overall Rating — 4 of 5

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9. VMaxTanks Deep Cycle Trolling Motor AGM Battery Kit

VMAXTANKS VMAX V35-857 12 Volt 35AH AGM Battery Marine Deep Cycle HI Performance Battery Ideal for Boats and 18-35lb minn kota, minnkota, Cobra, sevylor and Other trolling Motor (12V 35AH, Group U1)

VMaxTanks designed a battery specifically for boat motors. It’s everything you want for a boat battery but especially for maritime use.

 

Key Features

  • Heavy-duty 12 V, 35 Ah
  • Sealed lead acid battery with AGM technology
  • Deep cycle
  • 3 amp 12 V four-stage smart battery charger
  • Marine-grade Quick Box battery box
  • CB60 60-amp waterproof reset circuit breaker

 

What We Like

We like that the design is specific for maritime applications and that this lead acid battery comes with the fittings needed to install it on your trolling motor quickly. This product is a complete set with all the bells and whistles required to function immediately.

 

What We Don’t Like

While this is a complete set, the price is higher than the cost of a replacement. You might be overpaying if you already have a setup for marine batteries.

 

Pros

  • Complete deep cycle battery set ready for installation onto your trolling motor
  • Specially built for maritime applications
  • AGM plates make it better than most lead acid batteries

 

Cons

  • More expensive than a replacement battery

 

The VmaxTanks Battery is a complete kit for those who have yet to install a battery in their boat. For those who already have installed one, you might be better off just getting replacement deep cycle batteries.

 

Overall Rating — 4.5 of 5

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A Guide for Buying Trolling Motor Batteries

Now that we’ve reviewed our top picks for the best trolling motor battery, let’s explore the considerations we used to compile these reviews. We invite you to consider these things as well when you are selecting a troller battery for use on boat motors.

When it comes to troller batteries, people pay attention to the crucial details. Due to brand familiarity, people do not necessarily pay attention to specifications and compatibility with their trolling motors. We don’t recommend a general approach to a specific trolling motor. The trolling motor battery should match the engine if you don’t want to have problems later on.

Having only a single option due to brand quality and assumptions about how a battery will perform is insufficient. You should also take into consideration the configuration when choosing a trolling battery for your motor. Specifically, the types of batteries (cranking and deep-cell batteries) and whether a battery should be dual purpose, wet cell, or gel boat should also be taken into account.

 

 

Best Trolling Motor Battery Tips and Guide

A couple of things must be considered to find a great battery for trolling motors. To save time often wasted due to battery issues, you must consider the battery type and the amperage of the battery before buying.

Take note of the following, and you will do yourself a huge favor.

 

The Type of Battery

Two types of 12-volt batteries are currently industry staples. These are the Wet Cell Lead-Acid Batteries and Absorbed Glass Mat or AGM. Whenever you look at the commonly available battery types, they will most likely fall into one of these two classes.

See the pros and cons of each type of battery below.

 

Wet Cell Batteries*** Absorbed Glass Mat or AGM
Pros:

  • Usually cheaper than AGM
Pros:

  • AGM is the more modern battery option
  • AGM batteries are sealed and, therefore, not prone to spilling like wet cell batteries
  • AGM lasts longer
  • AGM is more versatile and not prone to vibrations
  • AGM is safer than wet cell batteries
Cons:

  • You have to top off wet cell batteries once in a while
  • Sensitivity to vibrations
  • Have to be installed upright all the time for the wet cell batteries not to spill
  • Not as safe as AGM batteries
Cons:

  • Usually more expensive than wet cell batteries

***Lithium-Ion Batteries are not included in the classification because you will have to shell out a considerable sum of money to get one. We do not recommend that you get a Lithium-Ion Battery due to this high expense.

 

Amperage Hour Ratings

Looking at the trolling motor battery’s amperage and knowing the amps of your motor will let you determine the longevity of the battery in your trolling motor. The higher the amperage, the longer your battery is expected to last under typical working conditions.

Of course, you also need to consider that your trolling motors may need more electricity than the average, so you’ll need to know the electrical consumption of your motor before you decide on which of the myriad trolling motor batteries to buy.

Another related consideration is how much use your trolling motor will have during a typical trip. For example, if you are a master angler who trolling motors for precise movement, you probably should lower your expectations for total battery life, but if you have modest demands, the battery can last for a long time.

 

Here is the equation for this with a couple of examples:

 

Operating Hours of the Battery =

 

Example 1: =

 

Example 1: = 11 hours on low speed

 

Example 2: =

 

Example 2: = 1.83 hours on low speed

 

These two battery features will quickly determine if a specific battery is right for your trolling motor. As our example demonstrated, the amount of power drain is what tends to determine how long your battery lasts.

In example one, the trolling motor has modest power demands so that it can last for 11 hours on low speed. By comparison, the second example shows that a motor that consumes a lot of power will quickly drain your battery.

Please note that these are low-speed settings. The rate at which trolling motors drain battery power is not necessarily linear. The first battery might need only 5 amperes per hour on a low setting but consume 50 on its max setting. You will have to read up on the capabilities of different types of motors to be sure that your battery will meet your needs.

 

Cost

Once you have narrowed down your list of trolling motor batteries to the ones that are compatible with your machine, the next thing you should consider is cost. There is a correlation between quality plus battery life and price.

Getting the cheapest model will likely yield a battery that will quickly lose charge and leave you hanging just as you need it the most. The most expensive battery will last for a long time, but it might not be worth it if it also breaks the bank.

Go for a modestly priced model that gets you what you need. Remember, you won’t need to keep your trolling motor running all the time. It wouldn’t surprise us if you learned that your trolling motor is only running for an hour at most during a whole day of fishing. Also, remember that you can recharge batteries, so there is no need to buy a battery that can last for tens of hours unless you plan to take trips that require that sort of usage time.

 

Trolling Fishing Sunset

 

Weight/Size

Another consideration is the size and weight of the battery. Your fishing boat or kayak will have limited cargo space. Note what we said about the fact that your trolling motor doesn’t need to run all the time. The size and weight of your battery must compete with all the other equipment and whatever fish you catch.

The battery capacity tends to be proportional to the weight and also the size of the battery. The larger your battery and the heavier it is, the more charge it can hold. So, depending on your needs, you will want to keep your trolling motor battery modest. It’s just a backup motor battery after all.

On the other hand, the trolling motor can be a kind of backup power, which you can use if the primary motor fails or if you lose your oars. So, don’t think you can get away with an overly modest battery. You might need your trolling motor to bring you back to shore or to get help when an emergency happens.

 

Warranty

Finally, consider the warranty of the brand you want to pick. Go for one of the best brands as you’re sure they will always stand by its products. So, you want to get a battery from one of the best brands to make sure that you won’t be stuck with a lemon.

Fortunately, most brands are willing to guarantee their products, so the choice will likely come down to whether the brand is capable of attending to your battery if it fails. For instance, if you can return the battery to the store where you bought it to have it serviced, that is the sign of a great brand.

 

Maintenance

No matter how great your battery is, if you don’t make the effort to maintain it, you can’t keep it at top performance. 

It’s not that hard. Here are the key essential principles to guide you in battery maintenance in order to keep it in tip-top shape.

  • Give it a full charge after every use.
  • Use a trickle charger if you’re going to store it for a while, and remember to recharge it every month.
  • Drain fully, charge fully.

 

Final Thoughts

We’ve laid out some of the best choices for you, including their strengths and weaknesses and other interesting facts about them that might help you decide whether to buy or not. One of our picks for trolling motor batteries would surely work for whatever motor you have, whether transom or bow mounted.

If you wish to make the best of your fishing experience and use your trolling motor to make precision maneuvers to get at the fish you desire, I hope you read through our trolling motor battery reviews and guide and found a battery that works best for you.

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