Everstart 24Dc Marine Battery

As a lifelong boating enthusiast who’s spent countless weekends on the water, I’ve learned one crucial lesson: your marine adventures are only as reliable as your battery. After years of trial and error (and yes, a few embarrassing moments stranded in the middle of nowhere), I’ve developed a special appreciation for finding the right power source for my maritime adventures. Today, I’m diving deep into everything you need to know about the Everstart 24DC Marine Battery—a popular choice that might just be the perfect fit for your vessel.

The Morning That Changed Everything

Picture this: A perfect summer morning, cooler packed with sandwiches and cold drinks, fishing gear ready to go. I turn the key in my 18-foot bass boat, and… nothing. Complete silence except for the mocking calls of seagulls nearby. My old battery had given up without warning, and my carefully planned fishing trip was dead in the water—literally.

That frustrating morning led me down a rabbit hole of marine battery research, which eventually brought me to the Everstart 24DC. Since then, I’ve not only used this battery extensively but have also become something of an unofficial expert among my boating buddies. So grab your captain’s hat and join me as we navigate the world of marine batteries together.

What Exactly Is the Everstart 24DC Marine Battery?

The Everstart 24DC is a dual-purpose marine battery manufactured by Johnson Controls for Walmart’s Everstart brand. But what does that actually mean for you and your boat?

At its core, the 24DC is designed to provide reliable power for both starting your boat’s engine and running your onboard electronics. The “24” refers to its group size (a standardized battery dimension), while “DC” stands for “Deep Cycle,” highlighting its ability to provide sustained power over extended periods.

What sets this battery apart is its versatility. Unlike specialized starting batteries that deliver quick bursts of power or pure deep cycle batteries focused solely on long, steady discharge, the Everstart 24DC tries to be your all-in-one solution.

Is It Really a Deep Cycle Battery?

This is where things get a bit nuanced. The Everstart 24DC is what industry insiders call a “hybrid” or “dual-purpose” battery. While it carries the “DC” (Deep Cycle) designation, it’s more accurate to consider it a marine starting battery with enhanced deep cycle capabilities.

True deep cycle batteries are specifically designed to provide steady power over extended periods and can be discharged to 50% or more of their capacity without damage. The 24DC, while more robust than a pure starting battery, doesn’t quite match the deep cycling capabilities of batteries specifically engineered for that purpose.

That said, for most recreational boaters who need a battery that can start their engine reliably and run a few electronics like fish finders, radios, and navigation lights for a day on the water, the 24DC offers an excellent middle ground. If you’re planning extended trolling motor use or running power-hungry electronics for days without recharging, you might want to consider a dedicated deep cycle battery instead.

The Nitty-Gritty: Specifications of the Everstart 24DC

Let’s talk numbers. After all, understanding the specifications is crucial to determining if this battery fits your needs:

• Voltage: 12 volts (standard for most marine applications)
• Group Size: 24 (a standardized dimensional specification)
• Reserve Capacity: Approximately 140-160 minutes (the time the battery can supply a 25-amp load before dropping below 10.5 volts)
• Cold Cranking Amps (CCA): Around 750-800 CCA (a measure of starting power in cold conditions)
• Marine Cranking Amps (MCA): Approximately 950-1000 MCA (starting power at 32°F)
• Amp-Hour Rating: About 70-80 Ah (a measure of total energy storage)
• Weight: Approximately 45-50 pounds
• Dimensions: Roughly 10.25″ × 6.8″ × 8.5″ (LxWxH)
• Terminal Type: Dual terminals (both top post and side terminal connections)
• Technology: Lead-acid with absorbed glass mat (AGM) separators for improved durability

These specifications place the Everstart 24DC firmly in the middle of the marine battery market—not the most powerful option available, but certainly robust enough for most recreational boating needs.

What Does This Mean for Real-World Performance?

In practical terms, these specs translate to a battery that can:

• Reliably start engines up to about 150 horsepower under normal conditions
• Power a trolling motor (at lower speeds) for several hours
• Run basic electronics like fish finders, navigation lights, and radios for a full day on the water
• Withstand moderate vibration and rough water conditions
• Perform reasonably well in a variety of temperatures (though extreme cold will reduce performance)

Compatible Boats and Marine Applications

After testing the Everstart 24DC in various scenarios, I’ve found it works particularly well with:

Small to Medium Recreational Boats

• Bass boats (up to about 19 feet)
• Small cabin cruisers
• Jon boats
• Pontoon boats (as a starting battery, though larger pontoons may need additional batteries for accessory power)
• Small to medium bowriders
• Center consoles up to about 21 feet

Marine Applications

• Starting engines up to approximately 150 HP
• Running navigation lights, radios, and other basic electronics
• Powering fish finders and depth sounders
• Light to moderate trolling motor use
• Running small water pumps and bilge pumps

Is It Suitable for Trolling Motors?

This is a question I get asked frequently, and the answer requires some nuance. The Everstart 24DC can certainly power a trolling motor, but there are important considerations:

• Duration: While it can run a trolling motor, don’t expect all-day performance at high speeds. At lower speeds (1-3 setting), you might get 3-5 hours of continuous use.
• Power Level: The higher the power setting on your trolling motor, the faster the battery will drain.
• Motor Size: The 24DC is best suited for smaller trolling motors (30-55 lbs of thrust). Larger motors will drain the battery more quickly.
• Battery Life: Regularly deep discharging the battery will significantly shorten its overall lifespan.

For serious anglers who use their trolling motors extensively, I recommend either a dedicated deep cycle battery or considering a more specialized dual-purpose battery with enhanced deep cycle capabilities.

Price Point and Where to Buy

One of the most attractive aspects of the Everstart 24DC is its affordability. Priced typically between $90-$120 (as of my last purchase), it offers solid performance without breaking the bank.

The primary retailer for Everstart batteries is Walmart, where you can find them both in-store and online. Occasionally, you might spot them at other retailers or on marketplace sites, but Walmart remains the most reliable source.

When purchasing, keep in mind that marine batteries are heavy and contain acid, so many online retailers may add significant shipping charges or require in-store pickup. I’ve found it’s usually most convenient to simply visit a local Walmart and pick one up in person.

What About Warranty Coverage?

The Everstart 24DC typically comes with a 1-year free replacement warranty. This is fairly standard for batteries in this price range, though some premium brands offer longer coverage periods.

The warranty process through Walmart is relatively straightforward: if the battery fails within the warranty period, bring it back to any Walmart store with your receipt for a replacement. They’ll usually test the battery to confirm it’s defective before processing the exchange.

One important note: warranty coverage generally doesn’t apply to batteries that have been damaged through misuse, improper charging, or physical damage. It also doesn’t cover batteries that have simply been discharged and not properly recharged.

How Does the Everstart 24DC Stack Up Against Competitors?

After years of testing various marine batteries, I’ve developed a pretty good sense of how the Everstart 24DC compares to other options on the market:

Budget Tier Comparison

Compared to other budget-friendly options like ValuePower or SuperStart, the Everstart offers slightly better build quality and more consistent performance. I’ve found it generally outlasts most bargain-basement alternatives by at least a season or two.

Mid-Range Comparison

When compared to mid-range options like NAPA Marine or Bass Pro Shops XPS, the Everstart 24DC holds its own surprisingly well. While these alternatives might offer marginally better performance or slightly longer warranties, the difference rarely justifies their 20-30% higher price tags for most recreational users.

Premium Tier Comparison

Against premium options like Optima BlueTop, Odyssey, or DEKA Marine Master, the Everstart naturally falls short in terms of cycle life, extreme condition performance, and warranty coverage. However, these premium batteries often cost 2-3 times as much, making the Everstart an attractive option for boaters on a budget or those who don’t demand professional-grade performance.

The Value Proposition

The real strength of the Everstart 24DC lies in its value proposition. It delivers about 70-80% of the performance of premium batteries at roughly 40-50% of the cost. For weekend warriors and casual boaters, this represents an excellent balance of performance and affordability.

Beyond Boating: Alternative Uses for the Everstart 24DC

While designed primarily for marine applications, the versatile nature of the 24DC makes it suitable for several other uses:

RVs and Campers

The dual-purpose design makes the 24DC a good fit for smaller RVs and campers, where it can both start engines and power basic accessories. However, for extensive dry camping (boondocking), you’d likely want a true deep cycle battery or multiple batteries.

Off-Grid Power Systems

For small off-grid power systems—think hunting cabins or workshop backup power—the 24DC can serve as a decent storage battery when paired with solar panels or other charging systems. Just remember its limitations as a true deep cycle battery.

Backup Power

Some homeowners use marine batteries like the 24DC as backup power sources for critical equipment during outages. When paired with an appropriate inverter, it can run essentials like CPAP machines, communications equipment, or emergency lighting.

Golf Carts and Electric Vehicles

While not ideal for this application due to its hybrid design, the 24DC can work in a pinch for golf carts or other small electric vehicles. However, dedicated deep cycle batteries would provide better performance and longevity.

Installation: Getting Your Everstart 24DC Up and Running

Installing a marine battery isn’t complicated, but doing it correctly ensures safety and optimal performance. Here’s my step-by-step guide:

Tools You’ll Need

• Adjustable wrench or socket set
• Wire brush or battery terminal cleaner
• Protective gloves and eyewear
• Anti-corrosion spray or terminal protector
• Battery box (if not already installed)

Installation Steps

1. Safety First: Disconnect the existing battery by removing the negative (black) cable first, then the positive (red) cable.
2. Remove the Old Battery: Carefully lift out the old battery, being mindful of its weight.
3. Clean the Battery Tray: Use a wire brush to remove any corrosion in the battery tray or hold-down mechanism.
4. Position the New Battery: Place the Everstart 24DC in the battery tray, ensuring it’s secure and properly oriented.
5. Connect the Terminals: Connect the positive (red) cable first, then the negative (black) cable. Tighten securely but don’t overtighten.
6. Apply Corrosion Protection: Spray terminals with anti-corrosion spray or apply terminal protector pads.
7. Secure the Battery: Ensure the battery is firmly secured using the hold-down mechanism to prevent movement while on the water.
8. Test: Turn on your boat’s electronics to verify the battery is properly connected.

Installation Tips

• Terminal Type: The Everstart 24DC features dual terminals (both top post and side terminals), giving you flexibility in how you connect your cables.
• Orientation: While the 24DC is designed to resist vibration, it should still be installed upright for optimal performance and safety.
• Multiple Battery Setups: If you’re installing the 24DC as part of a multiple battery system, ensure all batteries in the system are of similar type, age, and condition for best results.

The Charging Conundrum: Properly Charging Your Everstart 24DC

Proper charging is perhaps the single most important factor in determining how long your marine battery will last. After experimenting with various charging methods, here’s what I’ve found works best for the Everstart 24DC:

Charging Basics

The 24DC should be charged using a marine-specific battery charger or a quality automotive charger with a marine setting. These chargers typically provide a three-stage charging process:

1. Bulk Charge: High current charging that brings the battery up to about 80% capacity
2. Absorption Charge: Reduced current charging that tops off the remaining 20%
3. Float/Maintenance Charge: Very low current to maintain full charge without overcharging

Recommended Chargers

I’ve had good success with chargers in the 10-15 amp range for the 24DC. Some reliable options include:

• NOCO Genius10
• Battery Tender Plus
• Schumacher SC1281
• Minn Kota Precision On-Board Charger (if permanently installed)

Charging Best Practices

• Charge After Each Use: Even if you’ve only partially discharged the battery, recharging promptly helps prevent sulfation and extends battery life.
• Slow and Steady: While the 24DC can accept higher charging rates, a slower charge (10-15 amps) typically results in more complete charging and longer battery life.
• Temperature Considerations: Charging is less efficient in extreme temperatures. If possible, charge the battery in moderate temperature conditions.
• Never Overcharge: While modern smart chargers help prevent this, older chargers might not automatically stop when the battery is full. Overcharging can damage the battery and create safety hazards.
• Off-Season Maintenance: During storage periods, connect the battery to a quality maintenance charger rather than letting it sit discharged.

Engine Alternator Charging

Most boat engines charge the battery while running through an alternator system. While this is generally sufficient to replace the power used for starting, it may not fully recharge a deeply discharged battery, especially during short runs. For best results, supplement alternator charging with shore power charging when the battery has been significantly discharged.

Longevity: How Long Will Your Everstart 24DC Last?

Battery lifespan is a function of both time and usage patterns. Based on my experience and discussions with other Everstart 24DC users, here’s what you can typically expect:

Average Lifespan

Under normal recreational use with proper maintenance:

• Typical Lifespan: 3-4 years
• Heavy Use Scenarios: 2-3 years
• Light, Occasional Use: Up to 5 years

Factors That Affect Battery Life

• Depth of Discharge: Regularly discharging below 50% significantly reduces lifespan
• Charging Practices: Improper or infrequent charging accelerates deterioration
• Temperature Exposure: Extreme heat drastically shortens battery life
• Vibration: Excessive vibration can damage internal components
• Water Conditions: Saltwater environments accelerate corrosion if terminals aren’t properly protected

Signs Your Battery Is Nearing End of Life

• Noticeably reduced capacity (runs out of power faster)
• Difficulty holding a charge
• Longer charging times required
• Physical deformation of the case
• Excessive terminal corrosion despite regular cleaning

Maintenance: Keeping Your Everstart 24DC in Prime Condition

Proper maintenance can significantly extend the life of your Everstart 24DC. Here’s my routine for keeping these batteries performing their best:

Regular Maintenance Tasks

1. Terminal Cleaning: Every 2-3 months, disconnect the cables and clean the terminals with a wire brush or terminal cleaner. Apply anti-corrosion spray or petroleum jelly afterward.
2. Inspection: Regularly check for cracks, bulges, or leaks in the battery case.
3. Voltage Check: Use a multimeter to check resting voltage periodically. A healthy 12V battery should read between 12.6-12.8 volts when fully charged and rested.
4. Water Level: Unlike some batteries, the 24DC is maintenance-free and sealed, so you don’t need to check or top up water levels.
5. Secure Mounting: Periodically verify that the battery is still securely mounted to prevent movement and vibration damage.

Seasonal Maintenance

1. End of Season: Before winter storage, fully charge the battery and disconnect it or connect it to a maintenance charger.
2. Storage Location: Store in a cool, dry place away from freezing temperatures. A partially charged battery can freeze in cold conditions.
3. Periodic Charging: If not using a maintenance charger, recharge the battery every 1-2 months during storage.
4. Beginning of Season: Test the battery thoroughly before the first outing of the season to ensure it’s still performing adequately.

Saltwater Considerations

If you boat in saltwater environments, maintenance becomes even more critical for the Everstart 24DC:

• Increased Frequency: Clean terminals monthly rather than quarterly
• Additional Protection: Consider using terminal protectors or specialized marine grease
• Thorough Rinsing: If the battery is exposed to salt spray, rinse the exterior (not the terminals) with fresh water and dry thoroughly
• Battery Box: A quality marine battery box provides additional protection from the harsh saltwater environment

The End of the Road: Recycling Your Everstart 24DC

All batteries eventually reach the end of their useful life. When that time comes for your Everstart 24DC, responsible disposal is essential:

Why Recycling Matters

Lead-acid batteries like the 24DC contain materials that can be harmful to the environment if improperly disposed of, including lead and sulfuric acid. However, up to 98% of the battery materials can be recycled and reused.

Recycling Options

1. Return to Retailer: Walmart and most other battery retailers will accept your old battery for recycling, often offering a core credit toward your new purchase.
2. Auto Parts Stores: Establishments like AutoZone, Advance Auto Parts, and O’Reilly typically accept used batteries for recycling.
3. Recycling Centers: Local hazardous waste facilities or recycling centers generally accept lead-acid batteries.
4. Service Centers: Marine service centers and boat dealers usually have battery recycling programs.

The Process

Recycling is straightforward:

1. Transport the battery upright in a leak-proof container
2. Bring it to your chosen recycling location
3. Some locations may offer a small payment for the lead content
4. Many retailers offer a “core charge” refund when you return your old battery

Real User Experiences: The Everstart 24DC in the Wild

While my personal experience with the Everstart 24DC has been largely positive, I’ve also collected feedback from other boaters to provide a more comprehensive picture:

The Good

• Value: Nearly unanimous praise for the price-to-performance ratio
• Reliability: Many users report solid starting performance across multiple seasons
• Availability: The convenience of being able to pick up a replacement at almost any Walmart is frequently mentioned as a significant advantage

The Mixed

• Longevity: Experiences vary widely, with some users reporting 5+ years of service while others see failure at 2-3 years
• Deep Cycle Performance: Mixed reviews regarding trolling motor performance, largely dependent on motor size and usage patterns
• Cold Weather Performance: Some users in northern climates report diminished cold-weather starting capability compared to premium alternatives

The Challenging

• Quality Control: Occasional reports of receiving batteries that were already several months old (reducing effective lifespan)
• Warranty Service: Some users report challenges with the warranty process, particularly without original receipts
• Weight: At around 50 pounds, some users find it heavier than comparable group 24 batteries from other manufacturers

Final Thoughts: Is the Everstart 24DC Right for You?

After thousands of hours on the water powered by various batteries, including the Everstart 24DC, here’s my honest assessment:

The Everstart 24DC represents an excellent value for recreational boaters who need a reliable, affordable battery for weekend outings and casual use. It strikes a good balance between starting power and moderate deep cycle capabilities, making it versatile enough for most small to medium boats.

This battery is ideal for boaters who prioritize affordability and convenience over maximum performance or extreme longevity. If you’re a casual weekend boater who needs reliable power without breaking the bank, the 24DC is likely an excellent fit for your needs.

However, if you’re a serious angler spending multiple days per week on the water, rely heavily on your trolling motor, or operate in extreme conditions, you might be better served by investing in a premium dual-purpose or dedicated deep cycle battery.

My Personal Recommendation

For my 18-foot bass boat that I use primarily for weekend fishing trips, the Everstart 24DC has proven to be a reliable and cost-effective choice. I typically get 3-4 seasons of dependable service before replacement, which feels like a fair return on investment given the price point.

That said, for my cabin cruiser that sees more extended use and powers more electronics, I’ve opted for a higher-end battery system that offers better deep cycle performance and longevity.

The key is honestly assessing your specific needs and usage patterns. For many recreational boaters, the Everstart 24DC hits the sweet spot of performance, price, and practicality—proving that you don’t always need to spend top dollar to enjoy reliable days on the water.

Whether you’re a seasoned captain or just getting started with your first boat, I hope this comprehensive guide helps you navigate the sometimes confusing world of marine batteries. Here’s to many trouble-free days on the water, powered by whatever battery best suits your particular maritime adventures!