
EverStart Lead Acid Marine Starting Battery, Group Size 24MS2 12 Volt, 1000 MCA*
- CCA rating can vary by location. See store for details
- 1 Year free replacement
- Free battery testing and installation at your local Walmart Auto Care Center.
- Marine cranking amps (CCA): 1000
- Reserve capacity: 135 minutes
- Lead acid design: Flooded
$80.34
Let me tell you about the time I found myself stranded on Lake Michigan as the sun was setting. My trusty bass boat, which had never given me trouble before, suddenly refused to start. The culprit? A three-year-old marine battery that had chosen that precise moment to give up the ghost. As I drifted with the current, watching the shoreline grow more distant by the minute, I made myself a promise: I would never again skimp on marine battery quality, and I would learn everything there was to know about these essential power sources.
That experience led me down a rabbit hole of research, testing, and conversations with fellow boaters and marine technicians. Today, I want to share what I’ve learned about one of the most reliable marine batteries on the market: the Everstart Marine Battery 24MS 1000 MCA. Whether you’re a weekend warrior, a serious angler, or simply looking to upgrade your boat’s power system, choosing the right marine battery can be the difference between a perfect day on the water and an expensive tow back to shore.
Understanding the Everstart Marine Battery 24MS 1000 MCA: The Basics
Before diving into the specifics, let’s clarify exactly what we’re talking about. The Everstart Marine Battery 24MS 1000 MCA is a dual-purpose marine battery designed to provide both starting power and deep cycle capabilities. This versatility makes it an attractive option for boaters who want to simplify their electrical system without compromising performance.
The “24MS” in the name refers to the battery’s group size—a standardized dimensional classification that helps ensure proper fit in your boat’s battery compartment. The “1000 MCA” indicates its Marine Cranking Amps rating, which I’ll explain in detail shortly.
Manufactured for Walmart under the Everstart brand, this battery has gained a reputation for delivering reliable performance at a competitive price point. But is it the right choice for your specific needs? Let’s find out.
Decoding the Specifications: What Do All Those Numbers Mean?
Marine batteries come with a dizzying array of specifications and ratings. Understanding what these numbers mean is crucial to making an informed decision.
Marine Cranking Amps (MCA) – What’s in a Number?
The Everstart 24MS boasts 1000 MCA, but what does that actually mean for you as a boater? MCA (Marine Cranking Amps) measures the battery’s ability to deliver current at 32°F (0°C) for 30 seconds while maintaining a voltage of at least 7.2 volts. In simpler terms, it indicates how much power the battery can provide to start your engine in moderate temperatures.
The 1000 MCA rating is impressive and generally sufficient for most marine applications, including larger outboard motors up to about 200 horsepower. This high MCA rating ensures reliable starts even when your engine is cold or hasn’t been run for a while.
MCA vs. CCA: The Temperature Difference
You might be familiar with CCA (Cold Cranking Amps), which is similar to MCA but measured at a colder temperature of 0°F (-18°C). The Everstart 24MS has a CCA rating of approximately 800, which is still excellent for most boating environments.
The difference between MCA and CCA is important to understand: MCA is typically about 20-25% higher than CCA for the same battery because batteries perform better in warmer temperatures. Since most boating happens in temperatures above freezing, the MCA rating is often more relevant for marine applications.
Reserve Capacity: Power When You Need It
The reserve capacity of the Everstart 24MS is approximately 160 minutes. This specification tells you how long the battery can deliver 25 amps of current before its voltage drops below 10.5 volts. In practical terms, this is how long your battery can run essential electronics if your engine and alternator fail.
With 160 minutes of reserve capacity, the 24MS provides ample time to operate navigation lights, radios, fish finders, and other crucial electronics while you troubleshoot issues or call for assistance.
Additional Specifications Worth Noting
- Voltage: 12 volts (standard for most marine applications)
- Amp-Hour Rating: Approximately 75-80 Ah, indicating how much energy the battery can store
- Dimensions: Approximately 10.25″ × 6.8″ × 8.9″ (L × W × H)
- Weight: Around 50-55 pounds
- Terminal Type: Dual SAE post and stud terminals for versatile connection options
- Construction: Absorbed Glass Mat (AGM) technology
Compatibility: Which Boats Work Best with the 24MS?
One of the most common questions I hear is, “Will this battery work with my boat?” The answer depends on several factors, including your boat’s size, engine type, and electrical requirements.
Ideal Applications for the Everstart 24MS
Based on my experience and conversations with other boaters, the Everstart 24MS 1000 MCA works exceptionally well in:
- Bass boats and fishing boats up to about 21 feet with outboard motors up to 200 HP
- Pontoon boats with motors in the 90-150 HP range
- Bowriders and deck boats under 23 feet
- Center console boats in the 17-22 foot range
- Small to medium-sized sailboats using the battery for starting and house power
- Personal watercraft (PWC) when a larger battery is desired for extended electronics use
The 24MS may not be the ideal choice for:
- Very large cruisers or yachts with high electrical demands
- Boats with multiple high-draw accessories that would benefit from a dedicated deep cycle battery
- Ultra-lightweight racing boats where battery weight is a critical factor
Trolling Motor Compatibility: Yes, But With Caveats
Can the Everstart 24MS power a trolling motor? The answer is yes, but with some important considerations. As a dual-purpose battery, the 24MS can handle both starting and trolling motor applications, but it’s not optimized specifically for either task.
For occasional trolling motor use or shorter fishing trips, the 24MS performs admirably. However, for serious anglers who rely heavily on their trolling motors for extended periods, I would recommend either:
- Using multiple 24MS batteries in parallel to increase capacity, or
- Considering a dedicated deep cycle battery with higher cycle life for the trolling motor while using the 24MS as a starting battery
In my own 19-foot bass boat, I’ve found that a single 24MS can power my 55-pound thrust trolling motor for about 4-5 hours at moderate speeds before needing a recharge. Your results may vary depending on your trolling motor’s power consumption and usage patterns.
Dual-Purpose Design: The Best of Both Worlds?
The Everstart 24MS is marketed as a dual-purpose marine battery, capable of both starting engines and powering accessories through deep cycling. This versatility is achieved through a careful balance in plate design and internal construction.
Traditional starting batteries have thin plates to maximize surface area for high current delivery but suffer when deeply discharged. Deep cycle batteries have thicker plates that withstand repeated deep discharges but may not deliver the instantaneous power needed for starting large engines.
The 24MS uses a hybrid design with plates of moderate thickness, supplemented by AGM (Absorbed Glass Mat) technology that enhances both starting performance and cycle life.
The Advantages of Dual-Purpose Design
- Simplicity: One battery type for multiple applications
- Space savings: Fewer batteries needed in smaller boats
- Cost-effectiveness: Lower initial investment compared to specialized battery systems
- Versatility: Can handle both starting and moderate cycling applications
The Limitations to Consider
- Jack of all trades, master of none: While good at both starting and cycling, specialized batteries will outperform in their respective niches
- Cycle life: Typically shorter cycle life than dedicated deep cycle batteries when regularly deeply discharged
- Compromised design: The compromise between starting power and cycling ability means some sacrifice in both areas
For most recreational boaters who use their vessels occasionally and don’t require extreme performance in either starting or deep cycling, the dual-purpose nature of the 24MS offers an excellent balance.
Installation Guide: Setting Up Your 24MS for Success
Proper installation is critical for getting the most out of your Everstart 24MS marine battery. Here’s my step-by-step guide based on personal experience and best practices:
Before You Begin: Safety First
Always wear eye protection and gloves when handling batteries. Work in a well-ventilated area and remove all metal jewelry. Have baking soda and water nearby to neutralize any accidental acid spills (though this is less of a concern with AGM batteries like the 24MS).
Step-by-Step Installation Process
- Locate your boat’s battery compartment and ensure it can accommodate the 24MS dimensions.
- Disconnect the existing battery by removing the negative (black) cable first, then the positive (red) cable. This order is important for safety.
- Clean the battery terminals and cables with a wire brush and a solution of baking soda and water to remove any corrosion.
- Position the new 24MS battery securely in the battery compartment. Ensure it’s oriented correctly according to your boat’s layout.
- Connect the cables in reverse order: positive (red) first, then negative (black). Make sure the connections are tight but don’t overtighten, which could damage the battery terminals.
- Apply a corrosion inhibitor to the terminals. I recommend a terminal protector spray or petroleum jelly to prevent future corrosion.
- Secure the battery using your boat’s hold-down system. The battery should not move when the boat is in motion.
- Test the installation by turning on some electronics and starting the engine. Everything should power up normally.
- Verify your charging system is working by checking that voltage increases above 13.5V when the engine is running.
Multiple Battery Installations
If you’re installing the 24MS as part of a multiple battery system:
- For parallel connections (to increase capacity while maintaining voltage): Connect positive to positive and negative to negative across batteries of the same type and age.
- For series connections (to increase voltage): Connect the negative terminal of one battery to the positive terminal of the other.
- For complex systems, consider using a battery switch and/or battery isolator to manage charging and discharge.
- Label your batteries clearly to identify their function and installation date.
Remember that batteries in a system should be of the same type, age, and state of charge for optimal performance and longevity.
Cost and Value: Investment Analysis
The Everstart Marine Battery 24MS 1000 MCA typically retails between $120-$160, depending on location and any ongoing promotions. This positions it as a mid-range option in the marine battery market.
Cost Comparison with Competitors
- Economy marine batteries: $80-$110 (typically with lower MCA and shorter warranties)
- Comparable mid-range options: $120-$180 (similar specifications and warranty terms)
- Premium marine batteries: $200-$350+ (potentially longer lifespans and enhanced features)
When analyzing the value proposition of the 24MS, we need to consider not just the upfront cost but also the expected lifespan and performance characteristics.
Value Considerations
- Cost per year of service: Assuming a 3-4 year lifespan with proper maintenance, the 24MS costs approximately $30-$50 per year of use.
- Convenience factor: The dual-purpose design potentially saves you from buying separate starting and deep cycle batteries.
- Warranty protection: The 24MS typically comes with a 2-year warranty, providing some insurance against premature failure.
- Availability: Wide availability at Walmart stores means replacements or warranty service is generally accessible even in remote areas.
In my analysis, the Everstart 24MS represents solid value for recreational boaters who use their vessels regularly but not intensively. For commercial applications or very frequent use, the economics might favor a higher-end battery with longer cycle life.
Where to Purchase: Finding Your 24MS
As an Everstart product, the 24MS is primarily distributed through Walmart. You can purchase it:
- In-store at Walmart in the automotive department
- Online through Walmart.com with delivery or in-store pickup options
- Through select marine dealers who carry Everstart products
- Occasionally through third-party sellers on marketplaces like Amazon or eBay (though be cautious about warranty coverage)
I recommend purchasing directly from Walmart when possible to ensure you’re getting a fresh battery with full warranty coverage. When buying in-store, always check the date code stamped on the battery to ensure you’re getting a recently manufactured unit.
Warranty Coverage: Understanding Your Protection
The Everstart Marine Battery 24MS typically comes with a 2-year warranty that includes a free replacement period. The exact terms may vary slightly depending on the purchase location and date.
Typical Warranty Structure
- First year: Full free replacement if the battery fails due to defects in materials or workmanship
- Second year: Prorated replacement based on the time remaining in the warranty period
What’s Usually Covered
- Manufacturing defects
- Premature failure under normal use conditions
- Internal shorts or open circuits
What’s Typically Not Covered
- Damage from improper charging or installation
- Physical damage or misuse
- Normal wear and tear
- Batteries that have been deeply discharged and left in that state
- Commercial or industrial use
To make a warranty claim, you’ll generally need your original receipt and may need to have the battery tested at a Walmart Auto Care Center or another battery service location.
Longevity and Performance: What to Expect
One of the most common questions about any battery is: “How long will it last?” Based on my experience and research, here’s what you can expect from the Everstart 24MS:
Typical Lifespan Under Various Conditions
- Recreational weekend use with proper maintenance: 3-5 years
- Regular use (weekly) with proper maintenance: 2-4 years
- Intensive use (commercial or daily): 1-3 years
- Poor maintenance or extreme conditions: Less than 2 years
Several factors influence battery longevity:
Factors That Extend Battery Life
- Proper charging: Using a marine-specific charger with temperature compensation
- Avoiding deep discharges: Keeping the battery above 50% charge whenever possible
- Regular use: Batteries that sit unused for long periods tend to sulfate and lose capacity
- Protection from extreme temperatures: Heat accelerates chemical breakdown within batteries
- Secure mounting: Reducing vibration extends internal component life
- Maintenance charging during storage: Using a quality float charger during off-seasons
Factors That Shorten Battery Life
- Deep cycling: Regularly discharging below 50% capacity
- Overcharging: Exposing the battery to charging voltages above 14.6V for extended periods
- Undercharging: Consistently failing to fully recharge the battery
- Extreme heat: Operating or storing in temperatures above 90°F (32°C)
- Parasitic draws: Electronics that continuously draw small amounts of power
- Extended storage without charging: Allowing the battery to self-discharge below 12.4V
Maintenance Guide: Keeping Your 24MS in Peak Condition
While the Everstart 24MS is marketed as “maintenance-free,” this term can be somewhat misleading. While you don’t need to add water or check electrolyte levels as with traditional flooded batteries, proper care is still essential for maximizing lifespan.
Routine Maintenance Checklist
- Regular inspection: Monthly visual inspection for:
- Cleanliness of terminals and connections
- Signs of damage or corrosion
- Secure mounting
- Bulging or deformation of the case
- Voltage monitoring: Check voltage periodically with a digital multimeter:
- 12.6V or higher: Fully charged
- 12.4V: Approximately 75% charged
- 12.2V: Approximately 50% charged
- 12.0V: Approximately 25% charged
- Below 12.0V: Recharge as soon as possible
- Connection maintenance: Keep terminals clean and protected with:
- Terminal cleaner for removing corrosion
- Terminal protector spray or petroleum jelly
- Properly sized wrenches for maintaining tight connections
- Charging practices:
- Use a marine-specific charger with AGM settings when possible
- Avoid fast charging except in emergencies
- Fully recharge after each use
- Use a maintenance charger during storage
Seasonal Storage Procedures
For boaters in seasonal climates, proper off-season storage is critical:
- Full charge before storage: Ensure the battery is 100% charged before storing
- Clean thoroughly: Remove any dirt or salt spray
- Disconnect or use a battery switch: Prevent parasitic draws
- Use a quality maintenance charger: Keep the battery at optimal charge
- Store in a cool, dry location: Ideal temperature is 40-60°F (4-15°C)
- Periodic voltage checks: Monthly if not using a maintenance charger
- Recharge if voltage drops below 12.4V: Prevents sulfation
Following these maintenance practices has helped me extend the life of my marine batteries significantly. I’ve had an Everstart 24MS last nearly five years with diligent care, while a friend who neglected basic maintenance saw his fail after just 18 months.
Charging Best Practices: Doing It Right
Proper charging is perhaps the single most important factor in battery longevity. Here’s my guide to charging the Everstart 24MS correctly:
Recommended Chargers
For optimal results, I recommend:
- Smart marine chargers with AGM-specific settings
- Multi-stage chargers that provide bulk, absorption, and float charging
- Temperature-compensated models that adjust charging voltage based on ambient temperature
Specific brands I’ve had good experiences with include Battery Tender, NOCO, and Dual Pro, though there are many good options on the market.
Charging Process
The ideal charging process follows this sequence:
- Bulk charging: High current (up to 20% of battery capacity) until the battery reaches about 80% charge
- Absorption charging: Constant voltage with declining current until the battery is fully charged
- Float/maintenance charging: Low voltage (around 13.2-13.5V) to maintain charge without overcharging
Charging Guidelines
- Charging current: For standard charging, use a charger rated at 10-20% of the battery’s amp-hour capacity. For the 24MS (approximately 75Ah), a 7.5-15A charger is ideal.
- Charging voltage: Maximum absorption voltage should not exceed 14.6V for AGM batteries like the 24MS.
- Temperature considerations: Reduce charging voltage in hot conditions and increase slightly in cold conditions if your charger doesn’t automatically compensate.
- Time expectations: A fully discharged 24MS typically requires 5-8 hours to fully charge with a properly sized charger.
On-Board Charging Systems
Most boats charge their batteries through the engine’s alternator. For optimal performance with the 24MS:
- Ensure your voltage regulator is set correctly for AGM batteries (typically 14.2-14.6V)
- Consider a multi-stage voltage regulator for improved charging efficiency
- Verify charging voltage at the battery terminals while the engine is running (should be 13.8-14.6V)
Saltwater Considerations: Thriving in Harsh Environments
Many boaters use their vessels in saltwater environments, which present unique challenges for marine batteries. The good news is that the Everstart 24MS, with its AGM construction and sealed design, is well-suited for saltwater applications.
Saltwater Adaptability
The 24MS handles saltwater environments well due to:
- Sealed construction: Prevents salt air from entering the battery
- Corrosion-resistant terminals: Typically tin-plated for enhanced durability
- Vibration resistance: Internal components are secured to withstand rough water conditions
- Maintenance-free design: No need to check electrolyte levels in corrosive environments
Additional Saltwater Precautions
While the 24MS is saltwater-compatible, these extra measures will extend its life in marine environments:
- More frequent terminal cleaning: Salt accelerates corrosion, so clean monthly
- Liberal use of corrosion inhibitors: Apply to terminals and connections after each saltwater outing
- Fresh water rinse: If the battery is exposed to salt spray, rinse with fresh water and dry thoroughly
- Consider a battery box: Provides additional protection from salt spray
- More vigilant voltage monitoring: Salt environments can accelerate self-discharge
Environmental Considerations: Responsible Disposal and Recycling
Marine batteries contain materials that require proper handling at the end of their life cycle. The good news is that lead-acid batteries, including AGM types like the 24MS, are among the most recycled products in the world, with over 95% of components typically recovered.
Recycling Process
When your Everstart 24MS reaches the end of its useful life:
- Never dispose of in regular trash: This is illegal in most jurisdictions and environmentally harmful
- Return to a retailer: Most battery retailers, including Walmart, accept old batteries for recycling
- Visit a recycling center: Many local recycling facilities accept lead-acid batteries
- Consider the core charge: Many retailers offer a “core credit” when you return your old battery
Environmental Impact
By properly recycling your 24MS:
- The lead plates and other lead components are melted and refined for new batteries
- The plastic case is typically shredded and recycled into new battery cases
- The electrolyte is neutralized and treated
- Other components are separated and recycled where possible
This process not only prevents environmental contamination but also reduces the need for new raw materials in battery production.
Real-World Performance: Customer Experiences and Reviews
I’ve spoken with dozens of boaters who use the Everstart 24MS and monitored online reviews to compile a comprehensive picture of real-world performance. Here’s what the consensus reveals:
Positive Feedback Patterns
Most satisfied users highlight:
- Reliable starting power: Even after sitting unused for weeks
- Good value for the price: Performance comparable to more expensive brands
- Decent cycle life: Holding up well for dual-purpose applications
- Wide availability: Easy to find replacements when needed
- Consistent performance: Meeting or exceeding expectations across various applications
Common Criticisms
The most frequent complaints involve:
- Inconsistent quality control: Some users report premature failures
- Limited deep cycling capability: Not ideal for heavy trolling motor use
- Weight: Heavier than some competitors (though this is typical of lead-acid technology)
- Warranty service: Occasional difficulties with the warranty process
My Personal Assessment
Having used the 24MS in my own boats and recommended it to numerous friends, my assessment is that it represents excellent value for typical recreational boaters. It delivers reliable performance at a reasonable price point, especially for boaters who:
- Use their vessels occasionally rather than daily
- Have moderate electrical demands
- Maintain their equipment properly
- Want a balance of performance and affordability
For intensive use or specialized applications, there may be better (though typically more expensive) options available.
Comparing the 24MS to Competitors: How Does It Stack Up?
To provide context, let’s compare the Everstart 24MS to some popular alternatives in the marine battery market:
vs. Interstate SRM-24
- Price: Interstate typically costs 15-25% more
- Performance: Comparable starting power, slightly better deep cycling capability
- Warranty: Similar 2-year warranty structure
- Availability: Interstate has wider distribution through dedicated battery retailers
- Overall: The Interstate may offer marginally better performance at a premium price
vs. Optima BlueTop D24M
- Price: Optima costs 50-75% more
- Performance: Superior vibration resistance and faster recharging
- Warranty: 3-year warranty vs. 2-year for Everstart
- Weight: Optima is slightly lighter
- Overall: Optima offers premium performance at a premium price
vs. Walmart’s ValuePower Marine Battery
- Price: ValuePower is 20-30% less expensive
- Performance: Lower MCA and shorter expected lifespan
- Warranty: Often shorter warranty period
- Overall: The Everstart provides better performance and longevity that justifies the price difference
Based on these comparisons, the Everstart 24MS occupies a solid middle ground in the market—offering good performance at a reasonable price point without the premium cost of top-tier brands.
Conclusion: Is the Everstart 24MS 1000 MCA Right for You?
After thoroughly examining the Everstart Marine Battery 24MS 1000 MCA from every angle, I can confidently say that this battery offers exceptional value for most recreational boaters seeking reliability without breaking the bank.
Its dual-purpose design provides versatility for a wide range of applications, from starting inboard and outboard motors to powering fish finders, navigation equipment, and occasional trolling motor use. The AGM construction eliminates maintenance headaches while enhancing durability in harsh marine environments.
The 24MS won’t be the absolute best choice for every boater. Those with specialized needs—like tournament anglers who run their trolling motors all day or offshore fishermen who demand ultimate reliability regardless of cost—might be better served by more specialized (and expensive) options.
For the weekend warrior, the casual fisherman, the family enjoying summer days on the lake, or the coastal cruiser making day trips, the Everstart 24MS hits the sweet spot of performance and value. Properly maintained, it will provide seasons of reliable service at a price point that respects your budget.
Remember that no battery is maintenance-free in the absolute sense. Even the best marine battery requires proper charging, cleaning, and storage practices to deliver its full potential lifespan. Follow the guidance in this article, and your Everstart 24MS should be a reliable partner for many adventures on the water.
As I learned on that fateful day on Lake Michigan, your marine battery is more than just another component—it’s the heartbeat of your boat’s electrical system and your lifeline when you’re miles from shore. Choose wisely, maintain diligently, and enjoy the peace of mind that comes with reliable power on the water.
Happy boating!


