Best Trolling Motor Batteries 2018 – Reviews And Top Picks

Wonder how to choose a battery for your trolling motor? Since it is basically the heart of your boat, you just have to consider a ton of crucial factors before getting the right one. People tend to look for all types of gadgets for the boat whereas its main elements hardly receive a tenth of attention.

Trolling motors demand a specific set of features and not every accumulator cell is capable of providing the required trust and power. If you want to get the most of your boat, you need to make sure that it gets enough juice to work.

A battery should be able to provide steady current, powering up the entire motor system along with onboard electronic devices. It should be durable – finding yourself in the middle of the lake with no power is an experience as unforgettable as it is unwelcome. Your battery should be easy to install even in harsh weather conditions – a simple mistake done when wiring a cable may cost you a brand new battery for good.

Among the key-points of choosing a battery, there are also quite unobvious ones: customers rarely think about vibration resistance or extra warranty until it’s too late.

So how to make the selection process easier and find the best option on the market? Below you will find reviews of the most prominent models currently available. Each battery has been selected because of its quality and combination of features. None of them is universal so you’ll still have to choose; however, everything is kept to the briefest, so no time will be wasted. After that, you’ll find what you need to proceed further in the form of an instruction on how to install and maintain the chosen battery plus a few care tips.

Name
Type
Voltage (V)
Capacity (Ah)
Size (inches)
Life expectancy (cycles)
Price
Name
Type
Voltage (V)
Capacity (Ah)
Size (inches)
Life expectancy (cycles)
Price
β„–1
Lithium-ion
12
100
L 12.75 x W 6.875 x H 9
3000+ at 80% DOD
β„–2
AGM
12
75
L 12.812 x W 6.5 x H 9.375
300 at 80% DOD
β„–3
AGM
12
35
L 7.7 x W 5 x H 6.1
600 at 75% DOD
β„–5
AGM
12
100
L 16.6 x W 11.1 x H 12.3
400 at 80% DOD
β„–6
SLA + AGM
12
35
L 7.68 x W 5.16 x H 6.14
400-500 at 80% DOD
β„–7
SLA+AGM
12
33
L 7.72 x W 5.16 x H 6.34
260 at 100% DOD
β„–8
Advanced AGM
12
55
L 10.8 x W 6.9 x H 8
400-500 at 80% DOD
β„–9
AGM
6
20
L 10.3 x W 7.1 x H 9.9
550 at 80% DOD
β„–10
SLA+AGM
12
55
L 9.1 x W 5.4 x H 8.3
400-500 at 80% DOD
β„–11
SLA+AGM
12
100
L 12.9 x W 7.7 x H 10.7
400 at 80% DOD
β„–13
Lithium-ion
12
10-14
L 5.27 x W 2.55 x H 3.62
2000+ at 80% DOD
β„–14
AGM
12
60
L 12.9 x W 6.8 x H 8.7
400-500 at 80% DOD

The 100Ah Lithium-ion by Battle Born Batteries holds sway over the category of the lightest boat deep cycle batteries on the market. It weighs four times less in comparison with its common lead-acid counterpart, while lasts as many as 10 times longer. A great, safe and reliable piece of the LiFeP04 lithium-ion technology for everyday marine use.

Type
Lithium-ion
Voltage (V)
12
Capacity (Ah)
100
Size (inches)
L 12.75 x W 6.875 x H 9
Life expectancy (cycles)
3000+ at 80% DOD
PROS

Reliable and well-protected against the weather;

An entire year of charge storage;

Undemanding and easy-to-use.

Cons

No mentioning of vibration protection from manufacturer;

No handles or usable paraphernalia.

The Optima Batteries 8052-161 D31M BlueTop works great as a dual purpose helper allowing you to make use of both its deep cycling and starting potential. By and large, its operational characteristics constitute a remarkable power, with a handy 900 cold cranking amps accompanied by an overall reserve capacity of 155 mins.

Type
AGM
Voltage (V)
12
Capacity (Ah)
75
Size (inches)
L 12.812 x W 6.5 x H 9.375
Life expectancy (cycles)
300 at 80% DOD
PROS

Excellent choice for starting motors and demanding equipment;

Powerful and durable.

Cons

Quite large and heavy, it may take a good deal of your boat’s space;

Can be seriously damaged by accidental overcharging.

VMAX tanks make exemplary use of and AGM-based (Absorbed Glass Matt) electrolyte suspension system. Its highly porous glass plate fully absorbs and securely contains the electrolyte. Battery systems of this kind do not utilize silica gels or any eco-unfriendly contaminants. The VMAX 12V 35ah AGM operates stably and has a prolonged lifetime thanks to the reinforced ABS container that lessens plate warping and case bulging.

Type
AGM
Voltage (V)
12
Capacity (Ah)
35
Size (inches)
L 7.7 x W 5 x H 6.1
Life expectancy (cycles)
600 at 75% DOD
PROS

Operates without electrolyte or water level check-ups;

Both lightweight and handle-equipped for comfortable carrying;

Its charger (VMAX BC1204 12V 3.3Amp) is separately available.

Cons

May appear slightly inconvenient in use due to higher charging voltage;

No equalization means sulfating with time (as with most AGM/SLA/VRLA batteries).

The ML55-12 is highly popular among owners of small to medium watercrafts, and it is little wonder as this 55Ah rated battery is specifically designed to cover most marine motor needs. It’s equipped with the grid of calcium-alloy and, as the result, contains enough power to provide you with a constant high speed during a long day on the water. This trolling battery’s heavy-duty frame enlarges its service life to the premium level.

Type
SLA + AGM
Voltage (V)
12
Capacity (Ah)
55
Size (inches)
L 9.02 x W 5.43 x H 9.13
Life expectancy (cycles)
400 at 80% DOD
PROS

Battery terminals remove the need of mounting accessories;

AGM spill-proof design with an expert range of operating temperatures;

Shock- and vibration-resistant;

Full operability for 4-6 hours at various speed settings.

Cons

Shorted plates cause a somewhat compromised performance.

Offering increased shock and vibration protection, the Odyssey 31-PC2150S survives even in conditions where other batteries quickly degrade. Its tight and robust construction houses pure lead plates that provide you with double-boosted power and tripled battery life characteristics in comparison with ordinary batteries. This Odyssey 31-PC2150S meets the highest demands of commercial boats and vehicles in that it delivers outstanding starting power along swift recovery and marine-grade durability.

Type
AGM
Voltage (V)
12
Capacity (Ah)
100
Size (inches)
L 16.6 x W 11.1 x H 12.3
Life expectancy (cycles)
400 at 80% DOD
PROS

Well-built and corrosion-resistant for heavy-duty and extreme marine applications;

Great power capacity;

High-class materials make for excellent protection from heavy heat and sharp frost.

Cons

Like with all AGM products, charging requires great care;

Quite pricey.

Next one in the category of lightweight leaders is the Interstate DCM0035. Its 23 pounds of acid-soaked lead guarantee stable performance at 35Ah of power and make it just perfect for kayak trolling motor needs. Along with its small form factor and complete lack of maintenance requirements, this AGM product is also totally unspillable. That and the sturdy construction allow the Interstate DCM0035 to steadily remain at the peak of its power-producing reliability.

Type
SLA + AGM
Voltage (V)
12
Capacity (Ah)
35
Size (inches)
L 7.68 x W 5.16 x H 6.14
Life expectancy (cycles)
400-500 at 80% DOD
PROS

Non-problematic mounting at any angle;

Sturdy plastic exterior significantly decreases the risk of the battery getting damaged;

Available at reasonable cost.

Cons

Is no match for its heftier competitors in capacity;

Is susceptible to lasting damage caused by overcharging.

ExpertPower simply shows that choosing a more economical battery does not necessarily mean a compromise in efficiency and power. Their EXP1233 here is your proof-of-the-concept: its single charge will supply you with a run time of 10 to 17 hours and a steady 33Ah performance on 12V devices. This VRLA (valve regulated lead acid battery) will come in handy for boat owners as well as for certain indoor applications, including power toys and home alarm systems.

Type
SLA+AGM
Voltage (V)
12
Capacity (Ah)
33
Size (inches)
L 7.72 x W 5.16 x H 6.34
Life expectancy (cycles)
260 at 100% DOD
PROS

Priced in an affordable range;

Lightweight design;

Screw-in battery terminals are not as delicate as in some other batteries.

Cons

Requires charging more often and is not suitable for extended one-time use;

33 Ah rating may seem low for some users;

Thin plastic carry handle does not look very sturdy.

The DieHard 38232 Advanced Gold AGM is an inexpensive solution perfectly suitable for RVs, off-road vehicles, motor boats, as well as other watercraft and marine needs. Its vibration protection has been specifically increased to 20 times that of the usual battery and this in turn twice extended the battery’s life. Thanks to such improvements, the DieHard 38232 does not stutter even when conditions get especially harsh.

Type
Advanced AGM
Voltage (V)
12
Capacity (Ah)
55
Size (inches)
L 10.8 x W 6.9 x H 8
Life expectancy (cycles)
400-500 at 80% DOD
PROS

Zero risk of spillage;

Electrical shorts are ruled out;

Internal components receive extra protection from the enhanced electrolyte suspension system.

Cons

Can be ruined by overcharge.

Coming from the USA, the Lifeline GPL-4CT is manufactured in accordance with military standards. This high-quality product creates only the minimal amount of gas – 2% of the total volume per month which automatically puts it in the category of industry-leading AGM batteries. Its self-discharge rate, too, does not rise above a level of 2% per month at an ambient temperature of +77 Β°F. The Lifeline GPL-4CT simply gives you more clean power while taking less space.

Type
AGM
Voltage (V)
6
Capacity (Ah)
20
Size (inches)
L 10.3 x W 7.1 x H 9.9
Life expectancy (cycles)
550 at 80% DOD
PROS

Quite cheap;

Reliable and long-lasting;

Army-grade effectiveness of recharging.

Cons

Not so all-around due to low voltage.

Meet another high-rated sealed lead acid product by NPP Batteries. This NPP 12V 55 Amp 55Ah is the type with button style terminals. The package includes bolts and nuts for a more comfortable hooking up. The battery body is made of ABS plastic, which is a non-conductive, shock- and vibration- resistant material. It is due to ABS plastic that the NPP 12V 55 Amp 55Ah endures even strong impacts, as well as heat and corrosive chemicals.

Type
SLA+AGM
Voltage (V)
12
Capacity (Ah)
55
Size (inches)
L 9.1 x W 5.4 x H 8.3
Life expectancy (cycles)
400-500 at 80% DOD
PROS

Trouble-free installation and operation;

The glass matt perfectly controls the liquid medium;

Button-style terminals for added convenience.

Cons

A bit too weighty as for its sizes.

This one working horse is designed specifically with deep-cycling in mind. The Universal Power Group 45978 marine battery demonstrates faultless performance and is worth every pound of its somewhat heavy bulk. Its thicker-than-usual casing reduced the impact of bumps and mechanical vibrations which are a constant battery damaging factor on boats.

Type
SLA+AGM
Voltage (V)
12
Capacity (Ah)
100
Size (inches)
L 12.9 x W 7.7 x H 10.7
Life expectancy (cycles)
400 at 80% DOD
PROS

Fully-functional and consistent operation;

Broad area of application, including trolling motors and RVs;

Does not require frequent charging due to efficient energy storage.

Cons

Its bulk and heaviness may cause trouble with mounting;

Being simply a deep cycle battery, it has no cranking power to be used to start motors.

If you want to wire your electric motor with something really lite and simultaneously powerful, then this Lithium Battery LifePo4 12V 50Ah will be ideal for you. It also works as a nice replacement for acid batteries of the same size. In comparison with most trolling motor acid batteries, the Lithium Battery LifePo4 12V 50Ah guarantees much longer water trips and faster recharge afterwards. It also has an unlimited usage potential for both outdoor and house appliances.

Type
Lithium-ion
Voltage (V)
12.8
Capacity (Ah)
50
Size (inches)
L 9 x W 5.5 x H 8.5
Life expectancy (cycles)
2000 at 100% DOD
PROS

Lightest construction;

Protected from overheating and explosion;

Suitable for go-cars and trolling motors.

Cons

Cannot be charged at temperatures near zero or below.

Despite its insignificant size, this Lithium Iron Phosphate accumulator by Battery Tender works as a perfect replacement for gel cell lead, flooded and AGM start batteries for watercraft, motorcycle, and utility vehicle engines. The LiFePO4 technology means an 80% lighter weight and absolute safety from spillages. The battery guarantees 5 times the life of an equivalent lead-acid competitor and stays fully functional for 2000 deep cycles and some.

Type
Lithium-ion
Voltage (V)
12
Capacity (Ah)
10-14
Size (inches)
L 5.27 x W 2.55 x H 3.62
Life expectancy (cycles)
2000+ at 80% DOD
PROS

Facilitated installation with Quad Terminal Configuration;

Mountable in all possible directions;

Do not sulfate, similarly to all lithium batteries.

Cons

Some users reported dangerous overheating during inappropriate runs.

The plate structure of the VMAX MR127 implies physical and chemical uniqueness. Its strength and reliability are enhanced through a special treatment process, which allows getting the maximum out of Pb-Ca plates. The battery excels in electrical parameters over the competing wet lead acid alternatives due to the combination of Absorbed Glass Matt (AGM) and VMAX plates.

Type
AGM
Voltage (V)
12
Capacity (Ah)
60
Size (inches)
L 12.9 x W 6.8 x H 8.7
Life expectancy (cycles)
400-500 at 80% DOD
PROS

Super-tenacious and capable of recovering even from deep discharges;

Automatic safety release/reseal valves that prevent harmful gases from accumulating;

No case bulging or plate warping thanks to ultra-durable ABS container.

Cons

Only suitable for a certain range of trolling motors (see specs).

Highly effective in both cyclic and float applications, this one VMAX shows amazing hardness even in the conditions of repeated over-discharges. The battery makes use of lead-tin alloys custom-made with an emphasis on heavy duty and an extra margin of lifespan. This product shares many similarities with the VMAX MR127 but suits different kinds of trolling motors.

Type
AGM
Voltage (V)
12
Capacity (Ah)
35
Size (inches)
L 7.7 x W 5 x H 6.1
Life expectancy (cycles)
400-500 at 80% DOD
PROS

Designed with great compactness;

Lightweight;

Prolonged hold of charge;

Very reasonably priced.

Cons

Long trips are not supported;

Some customers reported contorted packaging due to poor shipping conditions.

Buyer’s Guide – How to Choose a Trolling Motor Batteries

The great number of existing trolling motor batteries includes products for all tastes but simultaneously makes it more difficult to find the one you really need. Before buying a battery, you have to consider its purposes, type, the manner of use, size, durability, weight, required maintenance conditions – all the factors that define the product that really suits you.

So, what features are more significant and what factors could be put at the end of the checklist? This buyer’s guide will help you figure it out.

Three Different Types of Batteries

Wet-cell batteries

These traditional batteries (sometimes called flooded cells) are expected to withstand frequent chargings and rechargings. You’ve seen them countless times in everyday life: they are used in all types of cars.

These batteries deal pretty well with frequent recharging, have lower prices than lithium and AGM ones, and are relatively overcharge-resistant. While they often show slick performance, their main flaws mostly relate to the specific working conditions. Wet-cell batteries are not sealed, and therefore do not exclude the risk of acid leaks and resulting corrosion. Installed in rooms/closed premises, wet-cell units require ventilation to not put you in danger of flammable hydrogen gas accumulation.

Absorbed Glass Mat or AGM batteries

Unlike the wet-cell sets, AGMs are tightly sealed. As a result, they release no hazardous gas, require no extra ventilation, and can be mounted in many different ways.

Monofilament line AGM batteries are at least twice as expensive as flooded-cell units, yet they charge faster and tend to last two times longer. Here, the disadvantage of higher prices may be balanced by extra durability and cycle life. Lesser weight and smaller size may also be a top-one priority for light-sized boats.

Because of their tightly-sealed design, modern AGM units are more vibration-resistant and invulnerable to potential leaks of sulfuric acid.

Normally, these accumulators have no problems with temperatures below zero. On the bad side, their use in high temperatures is limited. Also, their performance and durability parameters significantly decrease after overcharge.

Lithium Batteries

These storage cells are designed to operate in a charge-depleting mode regardless of the charge level. AGM and wet-cell products usually provide a more powerful start; however, their ability to maintain a stable performance is significantly lower. If multitasking means a lot to you, then maybe it’s high time to give lithium a try.

Lithium cells are also lighter in weight and have a noticeably longer cycle life. Their main flaw is the price. In fact, it is hard to tell which variant is more reliable and money saving: lithium-ion with higher capacity or a pair of wet-cells as a reserve. In this case, the required size, capacity and maximal life of the product should be determined by your preferences.

Dual Purpose Batteries vs Deep Cycle

First and foremost, you should not use a starting battery as a power source on a regular basis.

Here, gradual and steady discharging is what you want to opt for, whereas starting cells are constructed to discharge a large percentage of the accumulated power in one impulse and, consequently, start the engine. Yes, you can use a starting battery in a critical situation; no, it will not last for long if this repeats too often.

There are two alternatives to choose from:

  1. Dual purpose batteries, which are capable of starting the engine and supplying the boat with a consistent flow of electrical power. They are designed as a universal solution, which means that they are good but not perfect for both of said purposes.
  2. Deep cycle batteries involve near-full discharging of its capacity in the process of constant energy supply. Single-purpose accumulator units provide a higher performance rate, last longer and have an increased battery cycle life with an added benefit of shorter charging time.

Anticipated Conditions of Service

Anticipated working conditions are your ground for the selection of a certain battery type. Ideally, you should be able to install two batteries to combine starting and deep cycle accumulator units. However, if the price and/or free space on the boat proves to be limiting factors, then a dual purpose cell will surely do – this is then your silver bullet for igniting the engine and providing energy for the motor power center.

Amp Hours (Ah)

This parameter describes the durability: an amount of time during which the energy storage device may power up an engine. It is measured in amperes per hours – for example, it the trolling motor uses 5.0 Ah and the capacity of the battery is 50 Ah, then it would be able to work for approximately 10 hours. This parameter is always indicated in the labels of deep cycle batteries but often absent in the dual-purpose cells.

Obviously, you should give precedence to the batteries with larger capacity because this one specification determines both a maximal speed and an average traveling distance. However, the capacity parameter provides only approximate values because of what cuts down the productivity index, namely:

  • the size of the boat (bigger boat needs more power);
  • the initial charge state (accumulator has more juice when it is freshly charged);
  • all the other devices and onboard electronics that use the same 12 DC battery as a source of energy.

In order to maintain speed, the boat needs a certain thrust. It is a multivariable index that is calculated depending on the boat’s size and form, trolling motor performance and power supply. Bigger boats have to develop more thrust levels and, as a result, require batteries with higher Ah parameters.

Approximate Trolling Motor Battery Run Time

Trolling motor trust (lbs) Amps Drawn at Various Speeds (amps) Run Time (hours)
Max Low Med Max Low Med
30 30 5 15 3.3 20.0 6.7
40-70 40 5 20 2.5 20.0 5.0
80-100 50 5 25 2.0 20.0 4.0

Β 

Motor Voltage

The voltage of the battery should correspond to the demands of the power system – a weak charge will not drive the engine. For example, 24 DC power system requires a battery with equivalent parameters. It is nevertheless possible to install several weaker cells to achieve desirable electrical voltage, such as three 12 DC batteries for a 36 DC power system and so on.

Size

It’s better to avoid wild improvisations here; the battery’s size should match the size of the motor power center with few to no exceptions. You can do without boring yourself out of your skull with measuring tape and simply find the measurements on the label right on the motor center. They are designated as BCI group size – these are the physical dimensions of the box size according to Battery Council International. When choosing a battery holder it is advisable to look for one with “M” in the BCI group size, which is the designation for “marine”.

Today, there are many different trolling battery motor centers provided by an array of manufacturers, including Newport Vessels, Minn Kota, and few others, which means finding a fitting accumulator cell isn’t necessarily going to become a difficult task.

Recharging Time

Reverse capacity indicates how long it takes for the battery to achieve 100% charge status. The higher this parameter the less time it takes to replenish an unloaded cell. However, being not a universal parameter, it quite often shows an inverse correlation with the durability index. Thus you should decide what matters more: quick and prompt charging or potentially longer lifespan when dealing with two products with different reverse capacity values. In general, lithium batteries demonstrate great results at the intersection point of the charging duration and optimal lifespan.

Lifespan

Deep cycle batteries usually last longer than the all-around types, while lithium cells tend to live longer than wet-cells. A bottom line for a good quality battery starts from approximately 150 deep discharge cycles and gradually raises in relation to average prices and quality.

Manufacturing Date

Not all batteries survive the storage well. Some of them may not keep their operational abilities or get a cycle life significantly decreased. This is why, when deciding between power and reliability, likewise consider the storage conditions of your battery. Make sure that the battery is newly made or at least check that its parameters are within acceptable limits.

In fact, when it comes to lead wet-cell accumulators, it is recommended to avoid those that are more than hundred days old because wet-cells require periodical charges in order to prevent the process of inner sulfurization. AGM and lithium-ion batteries may be stored up to a year without significant losses in power capacity and durability.

Construction

Since the battery is by design always located in a place exposed to mechanical vibrations, you should look for the container with significant shock and vibration-resistant properties. Such products are always tightly-sealed and covered with thick non-hazardous plastic panels designed to preserve the cells and prevent the possibility of leaks. Such features greatly extend the lifespan of dual purpose or deep cycle batteries, allowing you to minimize maintenance routine and conduct regular checks less often.

Some manufacturers protect the batteries with thick metal plates. The plastic bodies, though, are just a little bit less durable while remarkably more lightweight. Both materials are corrosion-resistant and provide good shock and waterproof protection.

In case of wet-cell accumulators, the cells are usually inserted into a hard rubber case or a high-density tough polypropylene, allowing them to withstand mechanical shock. However, from this point of view, Absorbed Glass Mat cells seem more protected.

Other Issues

All types of trolling motor batteries are able to recharge from various sources given correct current parameters and a reliable charger. This gives an opportunity for new charging combos, for example, it is possible to connect a battery to a solar panel through a solar battery charger, which compensates for the differences in voltage. You can now gradually recharge while actively using the boat, consequently increasing the available distance as well as a power reserve.

Design & Special Features

In addition to the maintenance-free cycle of work, modern AGM batteries do not require special orientation towards the central axis of the boat, since they are sealed with thick plastic plates against all types of leaks. Therefore, they can be installed not only in one position but also on one of the sides or even upside down.

Weight of Batteries

Take the battery weight into account only if it affects the manner in which the battery will be used. If you plan to transport your accumulator unit a lot, then you may look for a portable lite battery, possibly a lithium, which weighs below 50 pounds.

Otherwise, a heavier AGM battery (from 50 to 100 pounds) will also get the job done.

Warranty

All branded batteries come with a warranty. It usually ranges from one to three years with a chance of full replacement. In rare cases, you may get lucky with up to 5 years of prorated service maintenance. The terms are not identical for each product, so keep in mind to double-check the conditions when purchasing a battery.

Frequently Asked Questions & Answers

How to Connect a Newly Purchased Battery?

  1. Turn off all the switches and shut off the ignition switch.
  2. Remove the cables starting with the negative ones.
  3. Remove the wasted old battery.
  4. Double-check all the connections to avoid the risk of short circuit and corrosion. Clean or replace the damaged connections.
  5. Connect the negative cables, then the positive ones. Scrupulously check all the connections before turning the power on – reversed polarity immediately destroys the accumulator cells and may cause explosion and fire.
  6. Check the levels of the electrolyte and the charge status.

Maintenance and Nuances of Battery Care

When properly designed and constructed, a battery is capable to withstand even pretty harsh conditions without malfunctions. From a user’s perspective, the battery is an all-in-one unit and it should remain to be so. AGM and lithium-ions require no special maintenance; wet-cells should be checked for sufficient levels of electrolyte.

Below are pretty much all the care tips that may ever come in handy:

  • Avoid hitting your newly purchased batteries;
  • Use breakers to turn off the power during the inactive period;
  • Recharge them after every trip;
  • Store the units in a battery box;
  • Regularly check the fuses to make sure everything is protected in case the battery decides to short-circuit.

Finally, keep your boat in a flawless condition; as long as you take care of your watercraft, normally operating batteries can be left unattended.

Do I Really Need to Purchase a Specific Battery Instead of a Multipurpose One?

In fact, yes, staying specific is the most recommended. The secret to efficient energy supply lies in dividing the functions between to completely different battery sets. In this way you will increase the reliability of the whole system, making it possible to interchange the batteries more quickly, and even buy yourself a chance to use a starting pack in case of emergency or major malfunction. All-around accumulator units may seem promising, yet they give up their advantages over the long term.

How to Check the State of Charge?

In order to prolong the battery’s lifecycle, you may use additional hardware designed to detect malfunctions, monitor the charge and maintain a proper charging schedule. Important! Overcharging significantly reduces the durability of Absorbed Glass Matt batteries and wet-cells. Digital portable modules provide a possibility to control voltage and current inputs, check the charge level before and after charging and detect possible malfunctions. Since the monitor devices have a memory cell, it is also possible to analyze the performance rate by comparing test results at various stages (the majority of market-available devices allow to save results of several tests).

What Charger to Use?

To charge the battery properly, it is necessary to get at least one reliable 12/24 DC charger with built-in protection. In this way, you will be able to maintain the batteries’ good health and recondition them in order to achieve maximal performance. Regular and careful recharging will help prolong the battery’s life and keep your accumulator ready for use. By distributing the charge among all batteries in the pack, the charger allows you to minimize fuss with the charging routine and avoid premature deterioration of the actively used cell.

A good idea would be to get a reserve 12/36 DC charger with shorter charging period and higher efficiency if you find yourself short on time once too often.

Can I Use a Car Battery Instead?

Car accumulators belong to the category of starting batteries designed to provide a single powerful impulse instead of keeping high current for a long time. Even half a dozen car batteries would never replace a specialized trolling motor cell neither in durability nor in thrust. It could be used in dire need at most.as an exception rather than a day-to-day substitution.

Do I Need to Keep a Reserve Battery?

A reserve power source is one of those things that fall into a “must-have” category. Since the main battery is pretty much your one and only source of energy, a reserve would be a nice thing to have in an emergency. It does not have to be the exact same type of battery: for example, you may use a longer-lasting lightweight lithium or an all-around battery to secure the energy needs of the onboard electronics and communication equipment. Ultimately, you can even use a cell with lesser voltage as a temporary energy source.

Conclusion

In general, a trolling motor battery must provide enough power for your boat, an optimal duration of recharging and hold a charge as long as possible without noticeable power losses. In order to get a well-designed and full-scale functional trolling motor battery, you have to go through a couple of reviews and understand what features are of most value to you.

First, choose the right type. Next, learn more about all the nuances of maintaining and cleaning your battery to prolong its lifespan. Extra operational hours are never redundant, especially when dealing with such a vital factor as the powering of your boat. So, make sure you know what to do with the chosen battery and how to keep it in prime condition before you purchase it.

Take care of reserve batteries in order to eliminate even the slightest possibility of critical power loss. Equally important criteria include motor voltage, lifespan and BCI group size. Make sure the battery will fit said parameters of your power system.

Users Rating:
5 / 5.0
1 User Voted
Add Your Rating:
By Chris Hayes
about author

My name is Chris and I am a hunter, outdoorsman, survivalist of 36 years old from Bosie, Idaho. Being a participant of Ihea-USA, I like big game hunting most of all, especially hunting white-tailed deer. Except hunting, I’m also keen on fishing and gaining new knowledge how to survive in the wild nature. As a professional hunter, I do not stop improving upon own hunting skills and testing new gear, equipment, hardware and weapons. I write articles to share my experience and knowledge with the readers who motivate me for more. For any additional information contact me at [email protected]