If you’re looking for the best trolling motor battery on the market, then read on!
When you plan on hitting the waters for a whole day of fishing, it’s essential to have a great trolling motor that won’t die on you by lunchtime.
The trolling motor battery is designed to provide slow, steady power output to help maintain the engine run for a longer time.
7 Best Trolling Motor Batteries in 2021
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Here are our top picks for trolling motor batteries:
1. Universal Power Group 12V Battery
Angler’s Top Pick
- UPG #45978 UB121000 12V 100Ah
- Dimensions: 12.17 inches x 6.61 inches x 9.16 inches....
- SLA/AGM maintenance free, spill proof battery
- Can resist shock and vibration
- Reliable and consistent power
- Durable and lasts for years
Universal Power Group Battery is a spill-proof battery that is praised by a lot of anglers. The battery also supplies 12 volts 100 Ah. It is known for its long-lasting performance, wherein you can enjoy fishing all day.
2. VMAX MR137-120 AGM
Best for Heavy Duty Marine Batteries
- Two 12 Volt 120ah Group 31 High Performance Marine AGM Deep...
- EACH: Dimensions: 12.9"Lx6.8"Wx8.7"H (Height includes...
- Maintenance Free Operation: There is no need to check...
- Heavy-duty and worry-free
- Utilizes Electrolyte Suspension System, high porosity AGM
- Maximizes resistance to shocks and vibrations
- Fast Recovery from repeated deep discharge
This Vmax battery is excellent for trolling under harsh conditions. Anglers won’t have to worry about its maintenance because it is manufactured to have a maintenance-free operation.
This way, you don’t need to worry about checking the electrolyte’s specific gravity every time.
3. Interstate Batteries 12V 35AH
Best for Smaller Boats
- DEEP CYCLE MOBILITY BATTERY: Interstate Batteries DCM0035...
- DCM0035 BATTERY REPLACEMENTS: Compatibility Fit Guide...
- RECHARGEABLE, MAINTENANCE-FREE, SPILL-PROOF: Rechargeable,...
- Lead plates are thicker internally for more deep cycle AGM work
- Eliminates spill and overpressure, maintenance-free
- Long-life for deep discharge usage
If you have a smaller boat, like an ocean kayak, this Interstate battery is excellent. This battery only weighs 10 kg for heavy demand mobility. It also supplies 12V 35 AH and utilizes VRLA technology.
4. ExpertPower 12v 33ah
- Genuine ExpertPower Battery - The Most Trusted And Highest...
- Battery Type - 12 Volt 33Amp/10 Hour Sealed Lead Acid...
- Quality Assurance - Crafted Wtih A Rugged Construction, Our...
- Easy to install and hand-carry
- Compact but powerful, enjoy longer time on high speed
- Wide temperature range
The ExpertPower battery supplies 12 volts and 33 amps. It can power through a 10-hour fishing session easily. It also utilizes AGM technology and is known for its valve-regulated battery.
5. Optima OPT8016-103
- 12-Volt, 750 Cold Cranking Amps, Size: 10 inches x 6 7/8...
- Optimal starting power even in bad weather
- Mountable in virtually any position. Works well as a boat...
- Mountable in any position
- Reliable dual purpose battery
- Reserve capacity is utilized for constant performance
This Optima battery is durable enough to be usable even during harsh weather conditions. It can supply 12 volts, 55 Ah C20 capacity, and weighs around 43 pounds.
It is reliable with its reserve capacity of 120 minutes and 750 Cold Cranking Amps.
6. Mighty Max Battery 12V 100AH
Best Long Lasting Marine Batteries
- ML100-12 SLA is a 12V 100AH group 30H Sealed Lead Acid (SLA)...
- Dimensions: 12.09 inches x 6.65 inches x 8.48 inches....
- SLA / AGM spill proof battery has a characteristic of high...
- High discharge rate and deep discharge recover
- Long high-speed usability of deep cycle marine battery
- It will take a lot of space and add a lot of weight
This Mighty Max Battery is a 12V 100ah battery prepared for long-lasting trolling in the waters. It is a UL-certified group 30H that can operate during high or low temperatures.
A downside of this product is that it weighs 60 pounds and can be bulky.
7. Odyssey Trolling Thunder 34M
Best High-End Trolling Battery
- Cold Crank Amp (CCA)- 880; Better : Limited 3 and 4 year...
- Longer shelf life: Can be stored on open circuit without the...
- Vibration resistance- design protects against high impact...
- Deep cycle trolling motor designed to prevent shock
- It consists of a corrosion-resistant cycle trolling motor battery
- Can be pricey
The Odyssey Trolling Thunder battery is known for its low operating costs and long life cycle.
It is on the pricier side of motor batteries but still serves its high-quality battery performance. This battery is also known for its great extensive starting power.
Things to Consider When Looking For the Best Trolling Motor Battery
Here’s what you need to consider when buying batteries:
To understand its reserve capacity as a matter of priority over time, it is always necessary to check the current battery.
The reserve capacity is a very crucial rating for any battery. The measurement takes place in minutes. Once the voltage drops below 10.5V from 25 amps at 80 degrees Fahrenheit, that is the battery’s reserve capacity.
Some smart chargers enable you to adjust the charging speed accordingly. You may need to vary your speed if your trolling battery charger is considered a smart charger.
Before starting the business, read the manual of the manufacturer carefully. The last thing you would like to do is cause a fire outbreak or damage your battery prematurely.
In general, the larger the battery size of deep trolling motors, the longer the battery will last.
Want your battery to run longer? Check the battery’s amp hour rating (Ah) and the amperage draw. However, a 35 amp-hour or 70 amp-hour battery is enough if you’re especially looking for a kayak. Your battery life will last depending on your amp hours.
There are different types of batteries that are recommended for use with trolling motors.
Dual-purpose batteries are a combination of starting and deep cycle. These batteries work perfectly for small boats, short trips, or completely different uses. However, they’re not the best choice to run a quality trolling motor.
The deep cycle battery is designed to discharge smaller current quantities over a longer period. There are two deep cycle batteries:
Lead Acid Wet Cell battery
Because of the highly frequent draining and recharging associated with power operations, Lead Acid batteries are the cheapest option. The sealed Lead Acid battery costs less than $100 but is more prone to spillage and vibrations.
Wet cell batteries are a mix of water and sulfuric acid, which means that the cells and lead plates in the battery are either flooded or submerged into electrolyte fluid.
AGM stands for Absorbed Glass Mat. This type of battery is completely sealed with a longer life of the battery. The internal resistance of AGM batteries is also lower.
Group size types are not battery types, but rather, they’re considered battery families—the larger and stronger the battery, the higher the number.
- Group size 24 is your most frequent cranking batteries, double-use batteries, and small deep cycle batteries. Around 11 x 7 x 9 inches of group 2 batteries are measured.
- Group size 27 is more common for batteries with a deep cycle. 12 x 7 x 9 inches or larger
- Group size 31 is the last battery group. It is about 13 x 7.25 x 9.25 inches which are considered too large batteries.
Charging the battery with a trolling motor may be damaging if you do not use a deep cycle battery.
It would be best to choose a high-quality, Lead-acid AGM battery with long service life and is considered a maintenance-free battery. This is the best choice if you don’t want to buy batteries every year.
Please note any warranty included in purchasing the trolling motor battery.
This should indicate the minimum time the battery should last. Contact the manufacturer right away if it does not last that long.
According to powerboat manufacturers, trolling boats 14 to 16 meters long should be equipped with a 12-volt battery.
A 24 or 36-volt motor is needed for longer boats. Each of those trolling motors will be fitted with a 12v AGM deep cycle battery, with low hours of power supply over a long time.
Purchasing the best brand for motor batteries can be tricky, but fellow anglers are hyping some brands.
The Battery Mighty Max is a standard solution for anglers on a budget. However, don’t expect that Mighty Max will last really long.
Interstate is a good quality brand that has been around since 1952. Some batteries are open-cell batteries that require fluid upgrades at a low level.
About the same time as Interstate, Centennial originated in 1955. Centennial’s main difference from Interstate is that its batteries are closed – no liquids or tapers have to be checked. More reliable, but pricier.
A remarkable feature of the optima battery is that they don’t even have fluid. Optima uses a fibrous component that allows the battery to operate even though it is punctured.
Most anglers won’t like carrying trolling motor batteries by hand.
If your battery is bigger and heavier, there will be less room left for you and your fishing gear. Any common deep cycle battery may vary between 60 and 70 pounds.
And by choosing the lithium-ion trolling motor battery, you can reduce the weight but only at a higher price.
Don’t skimp on your trolling motor battery. You might think that you’ll save a bit of money by going with a cheaper battery, but you’re using it as your transportation over water…
Which means if the battery dies, you’re in a dangerous situation.
Spend a couple more dollars up front or risk the anguish of calling for a tow boat or worse, spending hours paddling into shore.
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