Finest Marine Batteries for 2022

Marine batteries are the unsung hero of the boating world. Simply as boaters will exit of their strategy to discover ethanol-free gas and components to maintain their outboard working at peak efficiency, anglers will go to excessive lengths to maintain the facility flowing to their electronics and electrical trolling motors. For these of us who always look to improve our angling expertise, a top-notch energy financial institution is simply as vital as the trendy instruments it helps.

Like all merchandise, the market is flooded with quite a lot of marine batteries. A few of these are higher than others. So, I waded by way of the ocean of batteries to search out those price having. Listed here are the most effective marine batteries to maintain your fishing boat going so you’ll be able to think about what actually counts: catching fish.

Issues to Contemplate Earlier than Shopping for a Marine Battery

Electrical engineers could have designed immediately’s top-quality batteries, however you don’t need to have a level to slender down your decisions. Listed here are a number of the facets of marine batteries patrons want to concentrate to earlier than pulling out the billfold and making a pricey mistake.


For many years producers had been content material with the usual flooded cell battery. Sealed batteries supplied an enchancment over the originals, however it wasn’t till latest forays into electrical automobile design that battery producers got the inducement to develop batteries that had been lighter, held a cost sooner and lasted for hundreds of discharges.

  • Flooded Lead Acid: The essential battery your father in all probability utilized in his automotive, boat, and every thing in between, flooded lead acid batteries have lead plates suspended in sulfuric acid that retailer and discharge electrical energy. Their easy development makes them the least costly choice for marine batteries, they usually have a tendency to carry up for 2 to 3 years earlier than needing to get replaced. Homeowners of those batteries ought to periodically test the extent of the acid within the battery, as it could actually evaporate out throughout charging, leaving the lead plates dry. This damages the battery, making it much less environment friendly, and finally nugatory.
  • Absorbed Glass Mat (AGM): One step above the flooded cells, AGM batteries nonetheless use acid and result in react and retailer electrical energy. However the acid contained in these cells is soaked into fiberglas mats to stop it from sloshing round or evaporating when the battery is being recharged. These batteries are inclined to final barely longer than flooded cells, however their fundamental benefit is that they require no upkeep.
  • Lithium Iron Phosphate: The newest expertise for the trendy boat, Lithium iron phosphate batteries have many benefits over flooded lead acid and AGM batteries, equivalent to sooner recharge instances, much less weight, and for much longer lifespans. These big-time advantages, nonetheless, include a big-time price ticket, typically costing as a lot as 4 or 5 comparably sized normal batteries. However even with the upper worth, many take into account these to be the most effective marine batteries.


Marine batteries, except for some specialty batteries to energy motors designed for kayaks and canoes, fall into certainly one of three sizes, labeled teams. Take note of how a lot room you may have in your boat’s storage space and be sure you don’t buy a battery that in the end gained’t match the structure of your cargo maintain.

  • Group Measurement 24: Usually reserved for beginning batteries that gained’t be required to deal with bigger battery drains. Nonetheless, this battery group’s lighter weight and small dimensions makes it a favourite for small jonboats the place house is at a premium.
  • Group Measurement 27: The usual battery dimension for many bass boats for each the deep-cycle trolling motor batteries and dual-purpose beginning batteries that additionally run primary boat electronics, bilge pumps and lights.
  • Group Measurement 31: The bigger dimensions of this battery group can imply extra energy capability, however that capability comes at the price of weight and house. Many mid-sized boats could not have sufficient house to accommodate these giant energy cells.

When you’ve got a kayak that you just want to convert to energy, take a look at our roundup of the best kayak motors. You can too outfit your vessel with one of many top trolling motors as picked by our consultants. We even have a bunch of helpful suggestions for do-it-yourself outboard repairs to maintain your vessel ship-shape. Uncover Boating additionally gives some useful solutions on boat maintenance to maintain your time on the water trouble-free.


Batteries have three fundamental makes use of on a ship: beginning the outboard engine, fueling the electrical trolling motor or powering the entire bilge pumps, aerators, lights and electronics discovered onboard. As fish finders have grow to be bigger and extra superior, they require far more energy than earlier flashers and primary graphs. Totally different makes use of name for various battery builds to get probably the most of every energy cell stowing away in your boat.

  • Beginning Battery: Beginning batteries are designed with many skinny lead plates to maximise the floor space of the chemical response happening to launch saved electrical energy. The skinny plates provide sudden bursts of excessive power, however don’t maintain up effectively to being drained too deeply then recharged.
  • Deep-Cycle Battery: The alternative finish of the battery spectrum from beginning batteries, deep-cycle batteries have fewer, however thicker plates suspended within the acid answer. This gives a decrease output of present, which permits the battery’s power reserve to final for much longer. The thicker plates additionally resist harm attributable to use, letting the person drain the battery’s energy a lot additional when working electrical units equivalent to trolling motors.
  • Twin-Objective Battery: Mister middle-of-the-road, the dual-purpose battery gives sufficient prompt energy to crank most outboards, but additionally has giant sufficient plates to deal with common discharges from electronics and aerators that will run all day.

Should you want a transportable battery pack to maintain your cell telephones or different electronics going, take a look at our roundup of the best power banks.


For many boating functions, capability will be measured in certainly one of two readings, relying upon the aim of the battery.

For beginning batteries, it’s all about instantaneous output, which is measured as Chilly Cranking Amps (CCA). So long as the beginning battery meets the CCA requirement of your outboard, it should carry out as wanted till it must be changed. There’s actually no have to spend extra cash on greater CCA batteries than what your outboard wants.

For dual-purpose and deep-cycle batteries, a battery’s amp hours can provide an excellent indication of its reserve. Whereas amp hours are literally a measure of how a lot cost goes into the battery throughout charging, it gives a relative quantity to check batteries of various sizes and kinds. For many trolling motors, batteries of 80- to 100-amp hours will present a full eight-hour day of use beneath regular situations. Preventing excessive winds and present can deplete batteries faster, slicing that utilization significantly.

Finest for Trolling Motor

Why It Made the Reduce

These overbuilt AGM deep-cycle cells will ship most energy to your trolling motor for years with as much as 400 discharges earlier than they trace at slowing down.

Key Options

  • Group 31 AGM
  • 92-amp hours
  • 67 kilos


  • Rugged Development
  • Glorious lifespan
  • Good efficiency at decrease cost ranges


  • Costly for a lead acid AGM battery
  • Heavy

Odyssey Marine AGM batteries are constructed particularly to deal with the repeated discharges of anglers who spend many days per week on the water. Whereas not as extremely touted by skilled anglers as lithium batteries, these stowaways are discovered within the energy banks of many fishing guides who cost and deplete their batteries on a close to each day foundation. The batteries are a bit heavier than different AGM marine batteries, however that weight comes from the industrial heavy-duty development that helps these energy packs fend off a number of the beatings that working at full velocity in tough water can dish out.

Bigger than regular cell sizes and pure lead plates provide extra capability as effectively, which means you’ll be able to spend extra time on the water earlier than you start to note any battery fade within the trolling motor prop or see voltage drop. These batteries are a number of the most costly AGM’s in the marketplace, however most anglers we talked to have praised the value as cash effectively spent.

For much more decisions, take a look at our roundup of top trolling motor batteries.

Finest Twin Objective

Why It Made the Reduce

Don’t let the modest specs idiot you, these “blue topped beasts” pack extra punch than most absorbed glass mat choices in the identical dimension class.

Key Options

  • Group 31 AGM
  • 75-amp hours
  • 61 kilos


  • 900 chilly cranking amps
  • Extraordinarily immune to vibration and tough remedy
  • Lengthy lifespan


  • A bit gentle on the listed capability

Though it’s listed as a gaggle 31 battery, the Optima Blue Top really has the identical dimensions as most 27 group batteries, making it a straightforward improve for anglers on the lookout for somewhat extra juice with out rearranging their boat’s battery compartment. Optima additionally appears to be a bit extra conservative than different battery producers in relation to itemizing their batteries’ capacities. Though they listing the 31M at 75-amp hours, in-the-field efficiency of those batteries far exceeded many opponents’ fashions that listing at 80-amp hours and above. The AGM design of Optima batteries contains separate coiled cells with fiberglas mats, making them 100% spill proof, even if you happen to mount them on an angle or on their aspect.

This dual-purpose battery additionally pumps out an astonishing 900 chilly cranking amps, which is able to provide ripcord-like efficiency on the starter on just about any dimension outboard an angler is more likely to have his or her boat. Whereas it’s all the time finest to have separate batteries for the trolling motor and outboard, this battery might simply pull double-duty for anglers ought to their main beginning battery resolve to die at a foul time. Whereas Optima could have been seen as costly 20 years in the past, their continued monitor document and prolonged lifespan has confirmed itself to be effectively price the additional cash over flooded cell batteries. And, it’s a mid-priced battery in immediately’s market.

Finest Lithium Battery

Why It Made the Reduce

With lithium batteries being the brand new youngsters on the town, Tracker gives as near an entry-level expertise within the class with specs that evaluate to a lot pricier choices.

Key Options

  • Group 27 Lithium Iron Phosphate
  • 80-amp hours
  • 23 kilos


  • Quick recharge time
  • Low weight
  • Extraordinarily lengthy lifespan


  • Not good for twin goal use
  • Lifespan is probably not price excessive price

Whereas lithium marine batteries are nonetheless of their infancy, the Bass Pro Shops Tracker Marine brand has undoubtedly embraced the expertise, providing quite a lot of lithium batteries produced by RelION expertise. Whereas different manufacturers have additionally contracted with the corporate, Bass Professional Retailers appears to have the most effective present worth for comparable fashions. Along with a lifetime boasting greater than 5,000 discharges, these batteries provide an honest capability of 80-amp hours. Nonetheless, anglers could also be pleasantly stunned that they may see an extended interval of high-power output, as these batteries carry out a lot in a different way than lead acid cells.

Whereas lead acid will slowly lose effectivity as they’re discharged, lithium batteries present near the identical discharge fee till they’re practically gone, giving the person extra time at peak energy. And as a substitute of needing a full night time to recharge after being depleted, this battery will energy again up in as little as an hour and a half after a full discharge. The actual query to ask is whether or not you truthfully fish sufficient to maintain up with this battery’s potential. In any case, 5,000 discharges are equal to fishing day-after-day of the 12 months for greater than 13 years! A weekend warrior could by no means see the financial savings.

Finest Battery for the Cash

Why It Made the Reduce

Greenback for greenback, it’s laborious to beat a Duracell for the common angler and weekend warrior. They’re not a “set it and neglect it” battery, however with the right consideration, the Duracell DC27 will carry out admirably to your angling wants.

Key Options

  • Group 27 Flooded Cell
  • 90-amp hours
  • 53 kilos


  • Cheap
  • Stable efficiency with correct upkeep
  • Holds as much as deep discharges in addition to higher-priced manufacturers


  • Restricted lifespan
  • Upkeep and monitoring required

Name me a shopper, however I’ve simply grow to be accustomed to changing my batteries as soon as each three or 4 years. Even after I used AGM batteries, there was all the time a need to improve or substitute my previous cells once they hit the four-year mark. As a mean angler, I realistically common about 10 fishing journeys monthly, with spring and summer time seeing many extra journeys than colder months. With that in thoughts, I’ve settled on the truth that I personally get probably the most bang for my buck out of Duracell deep cycle marine batteries. These batteries are made by Johnson Controls, the identical producer that produces most manufacturers, together with Walmart’s Everstart model in addition to AutoZone battery manufacturers.

The 90-amp hour-rating of the 27 group deep-cycle marine battery provides loads of energy to maintain the trolling motor turning, and I’ve by no means gotten lower than three years out of every battery. The battery does require monitoring, because the water within the battery’s acid answer will evaporate some if the battery overheats throughout charging. However, checking the water stage is so simple as popping the highest off every cell and visually inspecting it to verify the lead plates are submerged in liquid. At lower than $100 per battery, you should buy three of those batteries earlier than you attain the value of a comparable AGM, and twice that earlier than you strategy the value of a Lithium battery.

How I Made My Picks

As a ship proprietor for the final 30 years, I’ve had the chance to fish on a weekly foundation with quite a lot of flooded lead acid cells and sealed AGM batteries. Along with my private expertise with lead acid batteries I’ve consulted many aggressive bass anglers who’ve taken the plunge into lithium battery expertise. These decisions are primarily based upon my analysis with these anglers in addition to my private experiences buying and fishing with these battery kinds.


Q: Do I really want a marine battery for my boat?

Marine batteries are designed to resist the moist environments present in boat cargo areas in addition to the abuse pounding waves can deal out on a voyage. A boater may be capable to get by with a battery meant for a automotive or different automobile sort, however that energy supply could endure catastrophic failure from the intense environments the place anglers rely on their gear. Decrease output charges can imply greater amperage attracts as effectively, which might trigger harm to some marine electronics if used frequently.
Anglers utilizing a normal automotive battery to energy a trolling motor additionally could discover themselves wanting extra capability, as beginning batteries are designed to ship giant quantities of present briefly bursts, whereas trolling motors require decrease quantities of power unfold out over an extended time frame.

Q: Are you able to overcharge a deep-cycle battery?

Most trendy battery chargers have safeties in-built to close off when a battery is totally charged, however it’s nonetheless doable to overcharge a deep-cycle battery. When the battery overheats, the water within the sulfuric acid answer inside its case will boil and escape, leaving dry lead plates behind, which sulfate and lose their capability. If the overcharging continues or the water isn’t changed, the battery is usually a full loss.
Overcharging usually is the results of the person not selecting the proper setting on their battery charger. Whereas uncommon, a charger or battery maintainer’s failsafe can malfunction, so it’s all the time finest to control your charging standing and never rely too closely on the charger dealing with it for you.

Q: Which is best, AGM or Lithium battery?

If cash had been no object, Lithium batteries can be the apparent selection over lead acid batteries. The Lithium battery gives extra energy with much less weight, an extended lifespan and a way more fixed energy output earlier than it turns into weak.
Nonetheless, all these advantages come at a better price. Whereas lithium battery prices are slowly lowering, they’re nonetheless a bit dearer than a lot of the AGM batteries in the marketplace.

Closing Ideas

The worth you expertise in a battery in the end relies upon upon the person and the way usually the battery is used. A lithium battery could permit as much as 10 instances the variety of discharges as comparable flooded cell or AGM batteries, but when the client doesn’t use their boat and batteries on a weekly foundation, they might by no means use the batteries lengthy sufficient to offset the extra expense. Likewise, if a boater isn’t keen to place within the additional monitoring and upkeep normal flooded cells require, they might harm the cheaper choice, requiring common replacements.

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