We know the struggle of wanting to enjoy the perfect lake day but end up getting more worked up due to insufficient battery life of your motor or other such problems.
With so many products on the market, there is an ocean of information that comes along with such variety. We have categorized the most crucial aspects of batteries for trolling motors and batteries in general. Read ahead to better understand the factors that will decide your next buy.
Although there is a vast variety of various types of batteries for trolling motors, but the two most important and crucial ones have absorbed glass mat batteries commonly referred to as AGM batteries, and lead-acid wet cell batteries.
AGM batteries are not inexpensive but that is because they are maintenance-free and require no upkeep in the lifetime of their usage. On the other hand, lead-acid wet cell batteries are cheaper but of course, require to be looked after such as the periodic pouring of water.
Amp Hours (Ah)
Ampere hours or Amp-hours for short is basically the most crucial factor to consider when buying a motor since it will define the time period for which your battery will be able to provide power.
Amp-hours is basically a measure of the charge inside your battery that allows, for one hour, the discharge of a single amp. The higher the amp hours the more charge or electricity it can store. But all batteries are different, and some require different amp hours to function.
There is no fixed standard however generally, a 25 – 50 Ah is enough for a small battery.
The power system basically refers to the voltage your trolling motor requires. Most trolling motors function at 12V however, some can require 24V. For that several batteries will have to be combined.
Deep batteries are lead batteries that are different from other styles of batteries since they provide sustained power and can run until they are eighty percent discharged. The flooded deep cycle batteries are the most common ones, they are maintenance-free and sealed.
Design, Construction, and Maintenance
When it comes to design and maintenance there is a direct relationship between the two. The way a battery is designed dictates if it requires maintenance or not.
The AGM batteries are maintenance-free due to their modern design whereas dual-purpose, deep cycle batteries have a thick plastic coating to provide a vibration-free experience.
Another important factor to consider is the weight of the battery. It’s a given that the size of a battery is directly proportional to its performance meaning the large a battery is, the more power it has.
Having said that you can’t just for the largest product on the market hoping it will be the best one. Since there are factors to consider and especially the fact that most boats, canoes, or kayaks don’t have enough space and thus require smaller motors and in turn smaller batteries.
Charging time is a personal preference. Basically, if you are an avid user of your boat and visit the lake regularly you will need a battery with a low charging time whereas if you don’t visit that often and your battery utilization is minimum then you don’t have to worry about the charging time.
Top 8 best deep cycle batteries for trolling motors
Gone are the days you had to worry about any of this because we have compiled a list of the top 8 finest deep cycle batteries for trolling motors.
|Optima Batteries 8016||☞Dimension: 10 x 6.88 x 7.8 inches|
☞Weight: 43.5 pounds
|Universal UB121000||☞Dimension: 16.44 x 12.75 x 12.56 inches|
☞Weight: 60 pounds
|VMAX MR127 12 Volt||☞Dimension: 12”L x 6 5/8”W x 8 5/16”H|
☞Weight: 65 pounds
|Interstate DCM0035||☞Dimension: 5.16 x 6.42 x 7.68 inches|
☞Weight: 22.9 pounds
|Vmaxtanks Vmaxslr125||☞Dimension: 6.8 x 12.9 x 8.7 inches|
☞Weight: 75 pounds
|Mighty Max Battery Deep||☞Dimension: 9 x 9.5 x 5.25 inches|
☞Weight: 36.6 pounds
|Expert power 12||☞Dimension: 7.12 x 3.03 x 6.3 inches|
☞Weight: 12 pounds
|Power Sonic Deep||☞Dimension: 6.6 x 12 x 9 inches|
☞Weight: 68 pounds
1. Optima Batteries 8016-103 D34M
- Dimension: 10 x 6.88 x 7.8 inches
- Weight: 43.5 pounds
The first battery on our list is the 750 CCA, BlueTop starting and deep cycle marine battery. As it says in the name the battery is a great starting as well as a deep cycle battery. It has a sturdy structure; made to endure harsh weather conditions may it be extremely cold or extremely hot.
It has a one-hundred-and-twenty-minute reserve which makes it reliable. Its exterior has been designed to minimize vibrations, reportedly up to fifteen times more than its competitors.
It utilizes AGM technology which makes it maintenance-free, but a common downside of AGM batteries is the risk overcharging.
- 120 min reserve
- 2-year warranty
- Risk of overcharging
2. Universal UB121000-45978 12v 100AH – top-rated
- Dimension: 16.44 x 12.75 x 12.56 inches
- Weight: 60 pounds
With a hundred-ampere hour battery charge the Universal UB121000-45978 is a 12 Volt AGM battery. It is a maintenance-free battery, unlike lead batteries that need to be filled with water, and has been designed to reliable with rapid recharging and superior performance.
It has a one-year warranty which is not sufficient in our personal opinion. It is a strong deep cycle battery so it cannot be used as a starting motor.
This is its biggest downside as you will require a separate battery for starting your motor.
Overall, it is a good product since it is very cost-efficient and has been built to last.
- AGM technology
- Cannot be sued as a starting battery
- One-year warranty
3. VMAX MR127 12 Volt 100Ah AGM – budget efficient
- Dimension: 12”L x 6 5/8”W x 8 5/16”H
- Weight: 65 pounds
Rating 100Ah, AGM technology-based, group 27 battery the VMAX MR127 is a 12V deep cycle battery that is reliable and strong. It’s maintenance-free and supports any 27-battery box. This makes it convenient and easy to mount.
It features a plastic exterior that minimizes vibrations and has a 30-day money-back guarantee, also a one-year warranty. It is one of the pricier batteries on our list and weighs quite a lot at 70 pounds. It is too large to mount for most canoes.
- Quick charge
4. Interstate DCM0035 Sealed Lead Acid (AGM)
- Dimension: 5.16 x 6.42 x 7.68 inches
- Weight: 22.9 pounds
Weighing in at only 23 pounds the Interstate DCM0035 deep cycle battery is the smallest deep cycle battery on our list today. It rates at 35Ah and is sufficient for small boats and canoes. Its AGM technology makes it maintenance-free and reliable.
It’s a Group U1 battery and recharges quickly. Due to its small stature, it can be mounted in any position safely.
However, since it is so small it does not pack much power and cannot support larger boats. It has a 1-year warranty. Perfect for low power requiring motors.
- Cost friendly
- Easily mountable
- Cannot support stronger trolling motors
5. Vmaxtanks Vmaxslr125
- Dimension: 6.8 x 12.9 x 8.7 inches
- Weight: 75 pounds
The next heavy-duty battery on our list is Vmaxtanks Vmaxslr125, it is a massive piece of machinery weighing in at seventy-five pounds. It is a premium-quality battery which means it’s expensive.
But it delivers the quality it promises. It has a life span of eight to ten years and features custom manufactured, military-grade plates. It comes with a built-in handle carrier but many people reported it was not as durable. If you want great quality, heavy-duty product regardless of the price point then this is the battery for you.
- Heavy duty
- Premium quality
- Non-durable handle
6. Mighty Max Battery Deep Cell ML55-12 SLA – high quality
- Dimension: 9 x 9.5 x 5.25 inches
- Weight: 36.6 pounds
Let’s say you want a premium grade product, that delivers quality and service, but you do not want it to be heavy on your pockets too. Well, we have got you covered. Introducing the Mighty Max Battery ML55-12 SLA.
This battery provides almost the same quality as that of premium-quality battery but at a much lower price. With this battery, you can enjoy the benefits of a high-quality product at a low price.
Additionally, it is maintenance-free and weighs only thirty-nine pounds. Some people have reported the need to buy terminal connectors separately for it to fit in their trolling motors. But spending a little extra on the connectors does not seem like much when you get such a good product at such a reasonable price.
- High quality
- Need to buy terminal connectors
7. Expert power 12 volt 18ah
- Dimension: 7.12 x 3.03 x 6.3 inches
- Weight: 12 pounds
Another affordable item for those lake lovers who want to enjoy fishing or boating but don’t want to spend a fortune on it is the Expert power rechargeable battery. It’s a 12V battery and rates at 18Ah.
It is small, lightweight, and convenient. It utilizes AGM technology and comes with a non-conductive plastic coating. It has a twenty-hour battery life and helps avoid short-circuits thanks to its well-positioned terminals.
However, since, it is such a small, affordable product – it is not very durable. Still, it is a great option for new kayakers since its user friendly and very easy to install.
- Easy to install
- Not durable
8. Power Sonic Deep Cycle PS-121000 – Most popular
- Dimension: 6.6 x 12 x 9 inches
- Weight: 68 pounds
The last but not the least is the Power Sonic PS-121000 deep cycle battery. It’s a premium-quality battery so, you already know – its pricey.
But just like other premium-quality batteries, it delivers great quality. It rates at 100 Ah making it a powerful option.
Whenever you will be on the lake, this battery will have your back.
- Strong built-in handle
- Easy to install
Choosing the right battery is a crucial task to ensure your comfort and ease when you are on the lake. We hope your summer days are filled with fun and comfort with any of these products you choose.
It is important to note that all products are personalized and it greatly depends upon your personal requirements so consider all the factors before you make a decision. We know that you will surely be satisfied with your purchase.
1. How often should I charge the trolling motor battery?
The trolling motor battery should be charged immediately after each use. this ensures that the battery never runs out of charge and is always available for use. Be careful of overcharging.
2. How long will a trolling motor battery last?
The lifetime of a trolling motor battery depends upon the type of battery it is for example AGM batteries have a life expectancy of somewhere between two years to four years whereas lithium ion-based batteries average around 10 years.
Another factor that can influence the lifetime of a battery is its usage – how often it is used and how it is taken care of.
3. Are AGM batteries better than wet cell batteries?
In terms of quality AGM batteries are better than wet cell batteries since they’re maintenance-free and have a good life span. They also charge quickly and don’t require much care. However, they are costlier as compared to wet cell batteries so it is a tradeoff between quality and price point.
4. Do I need a deep cycle battery?
Trolling motors function perfectly well when they are used with deep cycle batteries since the Motors are operated for several hours and a continuous charge is required. So, the more charge the battery offers the better the Motor will function.
Some deep cycle batteries are dual-purpose and can act as starters as well as deep cycle batteries however, they are not as efficient as dedicated deep-cycle only batteries.
5. Do I need to clean the trolling motor battery?
Not necessarily, if it’s an AGM based battery it won’t require any maintenance except for the fact that you might need to wipe off some mud here and there, after using it and even other trolling motor batteries don’t require much cleanup.
6. How should I store the trolling motor battery?
Most batteries are permanently installed into the boat so there’s no need to worry about its storage. However, if you don’t plan on doing so and need to store it somewhere then we recommend a cool and dark place such as a garage or a basement so, that it is below the room temperature.