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Best Trolling Motor Battery – Complete Guide for 2021

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I wrote a review of the best kayak trolling motors sometime back. In that article, the benefits of kayak trolling motors were highlighted. To refresh your memory, trolling motors allow you to take a break from paddling, lets you go hands-free, and provide speeds you can’t attain by paddling. They can take your kayaking experience to the next level!

The thing with kayak trolling motors is that they don’t come with batteries. The type of battery you buy for your trolling motor is very important as it affects the performance of the trolling motor, and consequently your kayaking experience.

This article focuses on the best kayak trolling motors batteries on the market. Below, you’ll find an overview of the best kayak trolling motor batteries, their pro, cons, and a buying guide to help you choose the best battery for your trolling motor. Here we go.

The 7 Best Trolling Motor Batteries for 2021

MightyMax Trolling Motor Battery

12V 55Ah Power Boat Pontoon Electric Trolling Motor Deep Cycle Battery - Mighty Max Battery brand product

$129.99  in stock
Amazon.com
as of September 19, 2021 6:57 am

The MightyMax 12V 55ah trolling battery is a high-quality maintenance-free battery that will provide your trolling motor with all the juice it needs. It comes in a sealed unit that’s spillproof and rugged enough to withstand tumble and take some abuse.

You can put this battery anywhere you find convenient on your kayak and you can expect to power through the waters for years with this battery. Yes, it’s that durable.

This battery is ideal for when kayaking trips where you intend to stay close to shore or plan to use your trolling motors to take breaks from paddling as the MightyMax 12V 55ah isn’t built for long-haul kayaking trips.

How long this battery will last will depend on your trolling motor but it can last up to a day especially if you are not using your motor at full speed.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 55Ah
  • Size: 9.02 x 5.43 x 9.13 in / 22.9 x 13.8 x 23.2 cm
  • Weight:  38.58 lbs / 17.5 kg

Pros

  • Maintenance-free.
  • Charges quickly.
  • Performs well across a wide range of temperatures.
  • Rugged and durable.
  • Long battery life.

Cons

  • A bit bulky.

Other Buying Options:

Universal Power Group Trolling Motor Battery

Universal Power Group 12V 100Ah Replacement Battery Compatible with Minn Kota, Minnkota, Cobra, Sevylor trolling Motor

$179.99  in stock
3 new from $179.99
Amazon.com
as of September 19, 2021 6:57 am

The Universal 12V 100ah trolling battery is a powerhouse that packs a lot of charge. It’s well suited for longer kayaking trolling motor trips thanks to the 100ah amperage. If you intend to venture far from sure with your trolling motor, this battery will provide all the power you need to explore and return back to shore. If you’ll be staying close to shore or will only be using your motor to take a break from paddling occasionally, this battery will be overkill.

I like the build quality of this battery as it’s very robust, spill-proof, and maintenance-free. You can mount it in any position you want in any part of your kayak.

The price of this trolling battery is reasonable especially when you put its superb performance into consideration. However, this battery isn’t exactly lightweight at 60 lbs and it takes a while to fully charge it. But all these can easily be overlooked when you consider the power you are getting.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 100Ah
  • Size: 12.1 x 6.6 x 9.13 in / 16.7 x 13.8 x 23.2 cm
  • Weight:  63.93 lbs / 28.9 kg

Pros

  • Rugged and super durable.
  • Totally maintenance-free.
  • Very powerful and suitable for long kayaking trolling motor trips.
  • Can be mounted in any position.

Cons

  • Quite bulky and heavy.
  • Charging takes a while.

Weize Trolling Motor Battery

Weize 12V 100AH Deep Cycle AGM SLA VRLA Battery for Solar System RV Camping Trolling Motor, in Series 24V 36V 48V

$189.99  in stock
3 new from $189.99
Amazon.com
as of September 19, 2021 6:57 am

Rated at 12V, 100ah, the Weize trolling motor is another powerhouse that’s well-suited for long kayaking expeditions. It comes in a protective package that protects it from damage and prevents spilling. Overall, this battery is very maintenance-free and will serve you faithfully for years.

Like the Universal battery above, this battery will be a complete overkill if you won’t be venturing far from shore or intend to use your trolling motor to catch a break from paddling. But if your intention is to travel far with your motor and explore the water, the Weize trolling battery will provide all the juice your trolling motor needs.

A battery with this large amperage is going to be small and you can expect this battery to be bulky at 57 lbs. Charging isn’t also going to be fast but remember this battery is rated 100 ah which is a lot of juice.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 100 Ah
  • Size: 12.9 x 6.7 x 8.42 in / 32.8 x 17 x 21.4 cm
  • Weight:  57 lbs / 25.8 kg

Pros

  • Well-suited for long kayaking trolling motor expeditions.
  • Maintenance-free.
  • Can be placed anywhere in your yak.
  • Rugged and long-lasting.

Cons

  • Quite bulky and heavy.
  • Doesn’t charge fast.

Other Buying Options:

VMAX Trolling Motor BatteryOur Top Pick

VMAX MR96-60 AGM 12V 60AH AGM Battery Deep Cycle High Performance Battery for 24-50lb Thrust Minn Kota, Cobra, Sevylor and Other Electric trolling Motors (Group 22NF, Upgrades Any 55AH 22NF Battery)

$209.99  in stock
Amazon.com
as of September 19, 2021 6:57 am

This Vmax battery is known for its superb performance and has a good reputation on the market. The heavy-duty construction combined with the sealed design results in a battery that’s totally maintenance-free. Also, this battery is one of the most durable you’ll encounter as it’s built to withstand the worst conditions you can encounter on the water.

Mounting is easy as you can place this battery in any position anywhere in your kayak. The amperage rating of 60 ah means this battery is suited for intermediate kayaking trolling motor trips i.e it exceeds short kayaking trolling motor trips but isn’t quite suited for longer trolling motor trips. It’s somewhere in between.

Charging is fairly fast and it’s not too bulky. You can increase the battery life by not traveling at the fastest speed.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 60 Ah
  • Size: 9.2 x 5.5 x 8.3 in / 23 x 14 x 21 cm
  • Weight:  43 lbs / 19.5 kg

Pros

  • Heavy-duty construction.
  • Maintenance-free.
  • Easy to mount.
  • Suitable for intermediate kayaking trolling motor trips.
  • Charges fairly fast.

Cons

  • No major shortcomings.

Other Buying Options:

Renogy Trolling Motor Battery

Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray

$233.99
$202.85
 in stock
2 new from $202.85
Free shipping
Amazon.com
as of September 19, 2021 6:57 am

I was impressed with the compact design of the Renogy 12V 100ah battery as 100ah batteries tend to be bulky. This battery is still quite heavy as it weighs over 60 lbs but the compact design makes it easy to carry while ensuring it takes up minimal space.

Renogy did an outstanding job with this battery and that’s why it’s regarded as one of the best trolling motor batteries on the market. The fully leak-proof design combined with the corrosion-resistant grids results in a battery that’s not only maintenance-free but also long-lasting.

Thanks to the 100ah rating, this battery is very powerful and well suited for long kayaking trolling motor expeditions. And you can mount this battery in any position in your kayak.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 100 Ah
  • Size: 13.1 x 6.9 x 8.6 in / 33 x 17.5 x 21.8 cm
  • Weight:  63.9 lbs / 28.9 kg

Pros

  • Compact.
  • Leak-proof design.
  • Very powerful.
  • Long-lasting.

Cons

  • Quite bulky.

Optima OPT8016-103 Trolling Motor Battery

Optima OPT8016-103 Batteries D34M BlueTop Starting and Deep Cycle Marine Battery

$299.99  in stock
5 new from $299.99
Free shipping
Amazon.com
as of September 19, 2021 6:57 am

Another maintenance-free gem of a trolling motor battery. Optima makes several batteries but the BlueTop specifically designed for marine use. It’s not the cheapest trolling batteries on the market but then, the best things in life are rarely cheap.

This battery works well in different temperatures be it cold or hot. And the spill-proof design means it can be mounted in any position.

Some users may find the 55 ah rating a bit underwhelming but this battery can go the distance and is especially suited for intermediate kayaking trolling motor trips.

It’s also very durable as it’s built to last. You can get it wrong with the Optima BlueTop battery.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 55Ah
  • Size: 10 x 6 x 7 in / 25 x 15 x 17 cm
  • Weight:  43.5 lbs / 19.7 kg

Pros

  • Maintenance-free.
  • Works well in different temperatures.
  • Spill-proof design.
  • Durable.

Cons

  • No major shortcoming.

Other Buying Options:

Interstate Trolling Motor Battery

Interstate Batteries 12V 35AH Sealed Lead Acid (SLA) AGM Deep Cycle Battery (DCM0035) Insert Terminals

 out of stock
Amazon.com
as of September 19, 2021 6:57 am

If space is limited on your kayak, then you should take a look at this Interstate battery. It’s very lightweight as it weighs just 23 pounds and also very compact, taking up very little space in your kayak.

You will still get a respectable 35 Ah in this compact battery. This isn’t a lot but is ideal for people that don’t plan to travel far from shore or intend to only use their trolling motors to take a break from paddling.

The durability of this battery has also been verified by several paddling enthusiasts so you can be certain of getting a battery that’s going to last for years.

 Specifications

  • Type:  Sealed Lead-Acid (SLA)
  • Voltage:  12V
  • Amperage: 35Ah
  • Size: 7.6 x 5 x 6.3 in / 19 x 12 x 16 cm
  • Weight:  23 lbs / 10.8 kg

Pros

  • Lightweight and compact.
  • Can work in different temperatures.
  • Maintenance-free.
  • Very durable.

Cons

  • Not very powerful.

Other Buying Options:

Best Trolling Motor Battery – The Guide 

Below are factors you should put into consideration when buying a trolling motor battery.

What is a Deep Cycle Battery and Why is it Adapted to Kayaks?

Deep-cycle batteries are reusable chemical-energy storage devices that are designed to provide steady power (small amount of currents) for a long period of time. Also, these batteries can be fully recharged and discharged several times.

The above features are what make deep-cycle batteries compatible for use with kayaks. You can’t use regular car batteries with kayaks because they are designed to deliver a brief burst of power after which they return to charging. Therefore, car batteries can’t deliver the steady power that is needed to power trolling motors.

Deep-cycle batteries can be mounted in any position since they come sealed and also require little maintenance.

Types of Trolling Motor Batteries

There are three main types of trolling motor batteries and they will be discussed below.

AGM Batteries

Absorbed Glass Mat (AGM) batteries, sometimes referred to as valve-regulated lead-acid batteries (VRLA) or sealed lead-acid batteries (SLA), are made from fiberglass matting and come in sealed units.

The main benefit of AGM batteries is their compact and lightweight design which makes them Ideal for use when you have limited space like a cramped or small kayak. These batteries also charge quickly and have a fairly long run time.

FLA Batteries

Flooded Lead-Acid (FLA) batteries are another popular type of trolling motor batteries. Their affordability is one of the main reasons behind their popularity.

FLA batteries feature the style used in older batteries since they contain liquid acid. And this is why FLA batteries are sometimes called wet cell or flooded cell batteries.

One of the benefits of FLA batteries is that they can withstand sustained charging and recharging. And those that are sealed require less maintenance and upkeep.

Lithium-Ion Batteries

Lithium-ion batteries are one of the most expensive types of trolling motor batteries on the market. They also have superb performance, are lightweight, and charge very quickly.

The longevity of lithium-ion batteries is increasing their popularity and they also require less maintenance.

Amperage Hour Rating

All batteries come with an amperage hour rating which denotes the strength of the battery. Typically, you’ll see abbreviations like Ah on batteries and Ah means Amperage per hour and is directly related to the battery life.

The larger the Ah rating of your battery, the longer the battery will last. But there are other factors that affect battery life such as the type of motor. Some motors require more power than the other and such motors will drain your battery faster.

The speed you are traveling also affects battery life. The faster your travel, the faster you drain your battery.

What Amperage Do I Need?

If you intend to get as much run time from a trolling motor as possible, especially if you are planning on a long trolling motor expedition, then you should go for batteries that are rated 100 Ah. Note that these batteries may be a bit heavy but that’s the small price you are playing for extended battery life.

Trolling motors rated between 50 – 100 Ah are ideal for intermediate trolling motor expedition while those rated 35 Ah or lower are ideal for short trolling motor trips i.e if you don’t plan to use your trolling motor for long.

Storage and Maintenance

One of the best things about the batteries on this list is that they don’t require a lot of maintenance. So you have your work cut out for you as far as maintenance is concerned. However, you have to properly store your battery if you want it to last for a very long time. Your battery should always in a cool dry place, away from extreme cold or heat.

You should also always endeavor to charge your battery after a kayak motor trolling trip. If you are the type that uses your trolling motor occasionally which means you don’t frequently charge your battery, then it is a good idea to charge your battery periodically. Failure to do this may lead to your battery not charging properly when you need it to.

All these are simple steps that will help improve the longevity of your battery and ensure it remains in top condition for as long as possible.

Final Thoughts

After buying a kayak trolling motor, the next thing is to buy a quality battery that will allow you to get the best out of your motor. I’ve reviewed some of the very best trolling motor batteries on the market and you can count on finding a battery that’s compatible with your motor on this list. Get a battery today and go farther than you’ve ever thought of.

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