Fishing & Hunting Tips

Best Battery for Kayak Fish Finder | Top 7 Review & Guide in 2020

Mighty Max Battery 12V 8Ah SLA Battery Replaces Lowrance Elite-3x Fish Finder Brand Product Kayak fishing is more like an enthusiasm, a favorite pastime for those who want to spend some time alone and away from busy life. And there are also those who hold a competitive edge. Whether you choose to take this as a sporting activity, a sensational experience, a relaxing trip, or a thrilling challenge, it’s mandatory to get the best battery for kayak fish finder.

And also, you need a reliable power source to back up the entire electrical system. That’s where a powerful yet portable enough battery comes in handy. Here we picked some of the best battery for kayak fish finder to meet your convenience.

Best Pick: Best battery for kayak fish finder

Last updated on December 8, 2019 6:38 pm

When you’re off to kayak fishing, you will look for a battery that will last you the whole trip without a hiccup. Because you need to keep your kayak fish finder functional.

This wouldn’t be an issue if you need to stay powered in a fishing boat. All the equipment will draw only a few amps of power which can hardly make a difference in overall battery life. Besides, those heavy duty marine batteries are connected either with the solar panel, wind turbine or at least, to the main engine alternator.

Understanding the type of battery you require is more important. There are a variety of battery in the market, However, you should look for a battery that is portable, lightweight,

And of course, it has to deliver a useful amount of power throughout the whole fishing adventure. Battery with 12V SLA should be your best choice. Most of the depth finders in the market will require a ½ amp of battery in an hour. So, if you choose a 7-8 amp hour battery, that will nearly give your fish finder about 16 hours of continuous uptime. However, there are also some depth finder models which offer a lot of options and customizability with the exception of a few more amps per hour.

Chrome Battery 12V 7AH Sealed Lead Acid (SLA) Battery for 570 Portable Fish Finder

Preferred Battery Volume

Now, let’s discuss the necessary power that you require. I wouldn’t recommend you to grab a powerful battery for a less intense task. Because it may cause damage to the device which will drain the power. If not, it would be an inconvenience to carry the extra weight and recharge the battery frequently.

To detect the capacity by acquiring the fish finder’s current amps, then multiply the amps and desired operating time is given in Ampere-hours.

Most of the fish finders out there drain less than 1 amp of power when powered by a 12V battery. Smaller models draw even less power, but larger models with GPS  combo capability could drain a lot.

Since you will be using more likely a portable fish finder for your kayak, suppose it draws ½ amps at 12V. Fishing trips traditionally last for 8-12 hours, shorter ones even last less, 3-4 hours.

So, if you plan a long trip and want your fish finder to last too, pick a 15-18 AH capacity battery. For shorter trips, get 4.5-6 Ah. This capability is theoretical, so it’s better to get a portable yet powerful enough battery to meet your expectation.

Battery Types

There are several types of batteries on the market. Choose according to your convenience.

Sealed Lead Acid ( SLA )

These are mainly used for deep cycle or dual purpose marine batteries. They can function in any position and situation. Leak free and affordable, these batteries also offer variable sizes. Aside from its weight, this battery should be a hot pick.

Nickel Cadmium ( NiCD )

This particular type of battery has a couple of superior qualities. It is lighter than SLA and can give supreme current outputs. Despite all of these qualities, there’s a drawback. The battery is not at all environment-friendly. It also has a severe memory effect and other issues.

Nickel Metal Hydride ( NiMH ) or lithium battery

This sort of battery has nearly the similar capabilities as Nickel Cardium for much lower weight. In fact, it can be 3-4 times lighter than NiMH and 5-6 times lighter than SLA batteries. If you are not light in your pockets and don’t mind investing in a  special charger then go for lithium batteries.

LUCKY Handheld Fish Finder Portable Fishing Kayak Fishfinder Fish Depth Finder Fishing Gear with Sonar Transducer and LCD Display

Battery Power Box

If you are a frequent kayak fish hunter, then I would recommend that you keep the battery in a power center box. Then connect it to your small turbine or solar panel ( if you have any ) to keep those Fishfinders GPS working for long trips.

Store the box in the watertight compartment of the boat. The battery will be well protected from outside damage and interference as well as environmental forces.

Now that you have understood the different specifications of different batteries, let’s find out some of the best battery for kayak fish finder.


1. Chrome Battery ( SLA ) for Portable Fishfinders

Chrome Battery ( SLA ) for Portable Fishfinders



  • Chrome Battery 12V 7AH – 84 Watts – T1 terminals – 5.6 lbs
  • H)3.72″ x (L)5.94″ x (W)2.56″ Polarity: [+ -], Maintenance Free and Fully Charged
  • Sealed Lead Acid and AGM Design Prevents Leaks and Corrosion
  • 60 days money-back guarantee, 18 months warranty

Description: Chrome battery is oldest yet one of the reputed rechargeable battery producers in the market. They manufacture quality 12V 7AH Sealed Lead Acid Battery with T1 terminals, also known as SLA battery.

The SLA battery is the ‘workhorse’ battery of all the other Chrome batteries. Constructed with Lead Calcium Alloy and absorbed glass mat technology, which provides nearly zero maintenance while operating for a long time.

There’s no need for water change. This is, arguably one of the best battery for kayak fish finder with the longest life cycle. It won’t spill or leak during its lifespan. It also offers longest and versatile amp hour capacity.

The battery has fiberglass mat separators and high cell compression, this not only extends the charging cycle but also protects from natural and artificial harsh condition.

Chrome battery is tested extensively before reaching to the consumers. Chrome battery SLA battery is constructed from premium quality materials. The variety of test provides security, OEM capabilities, effectiveness and top notch performance.

The battery is also capable to be recharged as many as 2000 times in its lifecycle. The welding technology of the battery case protects the battery from shock, vibration and high temperature.

The copper made terminals and factory activated battery is ready to go right out of the wrapper. This maintenance free valve regulated battery will last to the final volt.

  • Diverse usability
  • Safe & reliable
  • User-friendly
  • Vibration resistant
  • Factory activated
  • Durable
  • None



2. CB Chrome battery 12V 7AH ( SLA ) Battery

CB Chrome battery 12V 7AH ( SLA ) Battery



  • 12V 7AH – 84 Watts – T1 terminals – 4.1lbs Rechargeable
  • (H)3.72″ x (L)5.94″ x (W)2.56″ Polarity: [+ -]
  • Maintenance Free and Fully Charged
  • Sealed Lead Acid and AGM Design suppress Leaks and Corrosion
  • 60 Day Money Back Guarantee
  • 18 Month Warranty

Description: From home alarm system to electric scooters, from portable self-starter generator to wheelchairs, compact and portable design batteries demand has increased significantly over the last few decades. So, manufacturers are producing top quality and reliable batteries in order to meet the consumer’s desire.

Another production from chrome battery presenting premium quality. This 12V 7AH battery is in Sealed Lead Acid ( SLA ) category accompanied by T1 Terminals, Chrome batteries are constructed with Lead Calcium Alloy and absorbed glass mat AGM technology. This makes the battery completely maintenance free and operating in higher performance.

The fiberglass mat separators and high cell compression increase the battery life significantly. It also makes the battery highly resistant to vibrations, outside interferences, and other environmental/artificial hazards.

This inexpensive battery can be charged more than 2000 times before needing a replacement.

The welding technology of the battery case safeguards the battery from shock, vibration, heat and any other user abuse.

This maintenance free battery doesn’t require any water check or refilling. The regulated valve combined with sealed construction ensures the battery to safely operate in any position.

The terminal can endure wear, pressure, and torque, due to its premium build materials. The copper made terminals perform better and ensure better electrical conductivity.

The battery is sealed, filled, and ready to operate right out of the box. The spaces between the cells are replaced by glass fiber mat, thanks to the Chrome battery absorbed glass mat design. The ultrasonic metal welding then keeps the plate sealed.

The battery reaches the consumers after going through a variety of tests to ensure safety and optimal performance. So, you can invest and be confident with this product with unmatched guarantee and service warranty.

  • High Charging Cycles
  • Safe, reliable and durable
  • Maintenance free
  • Premium quality terminals
  • Factory activated
  • Resistant to vibration
  • User-friendly
  • Diverse usability
  • None


3. ExpertPower 12V 7 Amp EXP1270 Rechargeable Lead Acid Battery

ExpertPower 12V 7 Amp EXP1270 Rechargeable Lead Acid Battery



  • 12 Volt 7 Ah / 20 Hr SLA Battery
  • Maintenance Free
  • Long Shelf Life
  • High Discharge Rate
  • Long Service Life
  • 6″ x 6.0″ x 4.4″ (LxWxH)
  • BATTERY TYPE – 12 Volt 7 Amp 20 Hour Sealed Lead Acid Battery With F1 Style Terminals. Operational Temperature : Discharge: -40 °C to +60 °C (-40 °F to +140 °F), Recharge Temperature: -20°C to +50 °C (4 °F to 122 °F)

Description: The simple yet elegant procedure of assembling a battery has evolved throughout the decades of experience and precision modern manufacturing methods. The ExpertPower has assembled a battery with traditional technique yet managed to deliver powerful performance in a small shell.

The EXP1270 is a quality shaped 12V battery. Although this particular type is generally applied in the home security system and steady Power set-ups, it has seemingly gained its popularity in marine usage as well. This little powerhouse can keep your electrical system rolling while you are fishing with your kayak.

The external chassis of the battery is made of compressed ABS plastic to protect against leaks and incoming damages. On the other hand, Absorbent Glass Mat technology has granted the battery to produce higher current outputs and longer lifespan.

In the factory, the battery is assembled using traditional methods with a modern touch. From the ABS plastic shells with lead plates and glass mat separators inserted, to the filling and sealing of the battery with a finished charging cycle, the battery is not only well built but also has a quality check and safety program to ensure durable and reliable operation.

The company also follows a strict and quality packaging formula to make sure that the battery reaches to the consumer’s doorstep unharmed. The company also has a quick delivery mantra which will make the customer less likely to wait for the product after making a purchase.

The customer service is epic as well. After all, you can get an expert’s opinion on any issues faced by this battery. The devoted team of specialist will give you a speedy solution and much-needed suggestions.

  • Competitive price range
  • Rugged Construction
  • AGM tech
  • User-friendly
  • Complete Reliability
  • None


4. Hobie – Battery – 12V Fish Finder – 72025001

Hobie - Battery - 12V Fish Finder



  • Rechargeable 12v battery
  • Faston Tab Terminals
  • Replace an old battery or use as a spare
  • For Hobie Fish Finders


Hobie 12V batteries are specifically designed for Hobie fishfinders. You might find it complex to fit in with other depth finders.

If you don’t want to find yourself fishing without the aid of your fish finder, it’s clever grab the Hobie 12v Fish Finder battery. It is a rechargeable 12v battery that is designed to be compatible with the Hobie Fish Finder connections.

The battery can be used as a substitute or extra as well.

  • Great endurance
  • Immediate recharge keeps the battery in new condition for a long time
  • Works well with Hobie fish finder
  • Price range is a bit high


5. Powersonic 12V 7AH 570 Portable fish finder Battery

Powersonic 12V 7AH 570 Portable fish finder Battery



  • Dimensions: (L) 5.95 x (W) 2.56 x (H) 3.86. Weight: 4.80 lbs
  • Original Power Sonic PS-1270 F1 12V 7AH SLA Battery. Pack of 2
  • SLA/AGM maintenance free, spill-proof battery
  • Rechargeable battery that can be mounted in any position
  • Resistant to shocks and vibration
  • 1 Year Warranty

Description: The powersonic 12V battery is one of the best battery for kayak fish finder. Built from premium quality materials and precision modern methods, the battery has both power and diverse usability.

The powersonic 12V 7AH battery has an Absorbent Glass Mat ( AGM ) technology for top-notch operation. You can use this battery safely in any kind of position for maximum portability and compatibility, thanks to its Valve regulated, spill proof assembly.

This SLA battery comes with 2 units. Completely maintenance free, the battery is truly a smart buy for anyone. Arguably one of the best battery for kayak fish finder on the market today. This rechargeable battery comes with a 1-year warranty.

  • Good value for money
  • 1 year warranty
  • Diverse operation capability
  • Reliable & super performance
  • None


6. Universal Power Group 12V 35Ah- 2 packs

Universal Power Group 12V 35Ah- 2 packs



  • Rechargeable battery that can be mounted in any position
  • Resistant to shock and vibration
  • SLA/AGM maintenance free, spill-proof battery
  • Dimensions: 7.75 inches x 5.19 inches x 7.13 inches. Weight: 22.50 Lbs
  • UPG # D5722 UB12350 12V 35Ah. Pack of 2
  • 1 Year Warranty

Description:  Another powerhouse battery with a portable design that can meet the demands of so many different applications. The Universal Power Group 12V 35AH battery is in the Sealed Lead Acid ( SLA ) category. The battery is assembled in the company’s state of the art facility to ensure peer performance and reliability.

Portable and Versatile, the battery can be mounted in any position to deliver optimal and continuous service due to its valve regulated spill proof construction. The superior performance is made possible for its Absorbent Glass Mat ( AGM ) design.

It is also resistant to any physical damage and shocks. The sealed battery doesn’t require additional fillings. This is a true deep cycle best battery for kayak fish finder that can handle all of your electrical systems with ease. You will be able to stay powered throughout a long fishing trip without having to worry.

This maintenance free battery keeps the hazardous fumes within its battery case while charging. The gases are also processed within the battery itself.

We all know the phrase that with great power comes greater responsibility. With that being said, this is a pretty heavy unit for one’s taste if you are looking to install it in your kayak. I would recommend using a single unit if possible since it does come with a pair.

  • AGM design produces excellent deep cycle service
  • Less than 3% per month standing self-discharge
  • Maintenance Free
  • Valve Regulated
  • Float and Cycle Use
  • AGM design may offer greater reliability in extreme use applications
  • A bit heavy
  • Price might put a strain to your pocket



7. Mighty Max Battery 12V 18AH Rechargeable Deep Cycle

Mighty Max Battery 12V 18AH Rechargeable Deep Cycle



  • ML18-12 SLA is a 12V 18AH Sealed Lead Acid (SLA) rechargeable maintenance-free battery
  • Dimensions: 7.13 inches x 3.01 inches x 6.57 inches
  • SLA / AGM spill proof
  • Rechargeable battery that can be mounted in any position
  • Resists shocks and vibration
  • 30-day refund policy and full 1-year warranty

Description: If there ever was a telling ‘ bang for bucks ‘, the Mighty Max ML18-12 12V 18AH battery would be the perfect example. The battery uses a state of the art, heavy-duty, calcium-alloy grid that provides outstanding performance and service life.

The Absorbent Glass Mat technology with a valve regulated design that allows the battery to be used both indoors and outdoors environment without any damage and shock. The maintenance-free battery is also sealed and spill-proof providing a superior performance.

The battery is compatible in a wide variety of applications. You can mount this baby with your fish finder and stay powered throughout the fishing trips. Since this is an SLA battery, there’s no maintenance and refilling involved.

With that being said, you have to understand that no amount of care can not make your battery last forever. But still, you can increase the lifespan significantly by occasionally cleaning the connector cables and recharge immediately after depletion.

  • Powerful performance in this price range
  • Applicable to various tasks
  • Valve regulated the design
  • None


Charging fish finder batteries

It is a very sensitive and important task to charge the battery accordingly. Before plugging in the charger, be sure to check if its compatible with the battery. Because the wrong charger can damage the battery beyond repair. It also poses the risk of heat, fire, smoke and in the worst case scenario, an explosion!

SLA batteries are cheap and can be charged at a faster pace. But I wouldn’t recommend investing in a fast charger because it reduces the battery lifespan.



Whether you are a regular angler or occasional adventurer, picking up a best fish finder battery for kayak and other electrical equipment is extremely important. Because you don’t wanna get stuck in the middle of nowhere without power.

Here in this article, we tried to inform you about some of the best battery for kayak fish finder. So, before you browse to buy a battery, read the specifications of your fish finder first, otherwise, you could end up buying a product that isn’t compatible with your depth finder.

Nicholi Wyto

Hey I'm Nicholi Wyto is a professional sports fisherman and hunter, love to enjoy spending time in Michigan’s rugged northern forests. I love to explore my experience and help others who are interested in fishing and hunting.

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