There’s nothing worse than gearing up for a trail ride, turning the key on your Sportsman 570, and hearing that dreaded, soul-crushing ‘click… click… click’. A dead battery can stop an adventure before it even starts. You might think any old battery will do, but choosing the wrong one can lead to frustration, poor performance, and even damage to your ATV’s electrical system.
We get it. Navigating the world of battery specs can be confusing. That’s why we’ve created this ultimate guide. We promise to demystify everything you need to know about the correct polaris sportsman 570 battery size and type.
In this comprehensive breakdown, we’ll cover the exact battery dimensions you need, explore the pros and cons of different battery technologies like AGM and Lithium, walk you through a safe replacement step-by-step, and share some pro tips from the trail to keep your rig firing up every single time.
Why Getting the Right Polaris Sportsman 570 Battery Size Matters
Choosing a battery isn’t just about finding one that fits in the tray. The size, power, and type are all critical components that work together to keep your Sportsman running reliably, from starting the engine to powering your winch and lights.
The Dangers of an Incorrectly Sized Battery
Trying to “make it work” with the wrong battery is a recipe for disaster. An oversized battery simply won’t fit in the designated compartment, and forcing it can damage the battery case or surrounding components.
A battery that’s too small might slide around in the tray. This constant vibration is a battery killer, leading to internal damage and premature failure. More importantly, an undersized battery often lacks the Cold Cranking Amps (CCA) needed to turn over your 570’s engine, especially in cold weather.
Benefits of the Correct Battery Size
When you install the correct battery, you’re setting yourself up for success. The immediate benefits of polaris sportsman 570 battery size precision are undeniable.
- Perfect Fitment: The battery will sit securely in the tray, held down by the factory bracket, minimizing damaging vibrations.
- Reliable Starting Power: It will have the right CCA rating to reliably start your ATV in all conditions.
- Optimal Accessory Performance: It provides enough reserve capacity to power accessories like a winch, light bars, or heated grips without draining too quickly.
- Longevity and Safety: A properly sized and secured battery is safer and will last significantly longer, saving you money and headaches down the road.
Your Complete Polaris Sportsman 570 Battery Size Guide
Alright, let’s get down to the nuts and bolts. When you’re shopping for a new battery, you need to know the specific group size and key performance metrics. This section is your go-to cheat sheet.
The OEM Standard: Battery Group Size YTX20L-BS
For the vast majority of Polaris Sportsman 570 models, the standard factory-specified battery size is the YTX20L-BS. This is a standardized industry code that tells you everything about the battery’s physical dimensions, power, and terminal layout.
Let’s break it down:
- YTX: This designates it as a high-performance, sealed maintenance-free powersports battery.
- 20: This number is a reference to its power capacity.
- L: This is crucial! It indicates that the negative terminal is on the left side when you’re looking at the front of the battery. Getting one with the positive on the left (an “H”) means your cables won’t reach.
- BS: This simply means the battery is shipped with the acid separate in a bottle, which you add before the initial charge (though most AGM batteries now come factory-activated).
Key Specs to Check: CCA, Ah, and Dimensions
Beyond the group size, a few other numbers on the label are vital for performance.
Cold Cranking Amps (CCA): This is the most important number for starting power. It measures the battery’s ability to start an engine in cold temperatures (0°F / -18°C). For a Sportsman 570, look for a battery with at least 270-310 CCA. More is generally better, especially if you ride in the cold or run a winch.
Amp Hours (Ah): This measures the battery’s storage capacity. A higher Ah rating means the battery can power your accessories for longer with the engine off. The standard for a YTX20L-BS is around 18 Ah.
Physical Dimensions (Approximate):
- Length: 6.87 inches (175mm)
- Width: 3.43 inches (87mm)
- Height: 6.12 inches (155mm)
Always double-check the dimensions of the specific battery you’re buying against your old one or your ATV’s battery tray to ensure a perfect fit.
AGM vs. Lithium: Choosing the Best Battery Type for Your Ride
The YTX20L-BS size comes in different chemistries. The two most popular choices for modern ATVs are AGM and Lithium. Understanding the difference is key to making the right investment for your riding style.
The Workhorse: AGM (Absorbent Glass Mat) Batteries
AGM batteries are the modern standard for powersports. They are a type of sealed lead-acid battery where the electrolyte is absorbed into fiberglass mats, making them spill-proof and vibration-resistant—perfect for off-roading.
- Pros: Proven technology, very reliable, widely available, and more affordable upfront. They perform well in a wide range of temperatures.
- Cons: Significantly heavier than lithium batteries, have a shorter overall lifespan, and can lose their charge faster when in storage.
The High-Performer: Lithium-Ion (LiFePO4) Batteries
Lithium iron phosphate (LiFePO4) batteries are the premium upgrade. They offer incredible performance benefits but come at a higher price point.
- Pros: Extremely lightweight (often saving 5-10 lbs), deliver stronger and more consistent cranking power, have a much longer lifespan (2-4 times longer than AGM), and hold a charge for months in storage.
- Cons: Higher initial cost, can be sensitive to extreme cold (though newer models have improved), and may require a specific lithium-compatible battery charger or tender.
Which One is Right for You?
If you’re a casual rider looking for a reliable, budget-friendly replacement, an AGM battery is an excellent choice. It’s the workhorse that gets the job done without breaking the bank.
If you’re a performance enthusiast, a serious mudder, or someone who wants the absolute best in reliability and weight savings, a Lithium battery is a worthwhile upgrade. The long-term value and on-trail performance are hard to beat.
Step-by-Step Guide: How to Replace Your Polaris Sportsman 570 Battery
Ready to swap out that old battery? This is a straightforward job for any DIYer. Following these steps ensures you do it safely. This section covers how to polaris sportsman 570 battery size replacement correctly.
Tools and Safety Gear You’ll Need
- Safety Glasses and Gloves
- Socket Wrench or Nut Driver (usually 10mm)
- Phillips Head Screwdriver
- Terminal Cleaning Brush or a Wire Brush
- Battery Terminal Protector Spray (optional but recommended)
Step 1: Locate and Access the Battery
On most Polaris Sportsman 570 models, the battery is located under the seat. Remove the seat by unlatching it according to your owner’s manual. You may need to remove a plastic cover held on by push-pins to fully expose the battery.
Step 2: Disconnect the Old Battery
This is the most critical safety step. ALWAYS disconnect the NEGATIVE (-) terminal first. It’s typically the black cable. Use your 10mm socket to loosen the nut and pull the cable away from the terminal.
Next, disconnect the POSITIVE (+) terminal (the red cable). Once both are disconnected, you can unbolt the battery hold-down bracket. Carefully lift the old, heavy battery out of the tray.
Step 3: Clean and Prepare the Area
With the battery out, now is the perfect time to clean the battery tray and the terminal connectors on the cables. Use a terminal cleaning brush to scrub away any corrosion until you see shiny metal. A clean connection is vital for performance.
Step 4: Install the New Battery
Carefully place your new battery into the tray, ensuring it’s oriented correctly with the negative terminal on the left. Secure it with the hold-down bracket, making sure it’s snug but not over-tightened.
Now, connect the terminals in the reverse order of removal. Connect the POSITIVE (+) red cable first. Tighten the bolt securely. Then, connect the NEGATIVE (-) black cable. Applying a thin coat of terminal protector spray can help prevent future corrosion.
Replace any plastic covers, re-install the seat, and you’re done! Turn the key to make sure everything powers up as it should.
Common Problems and Pro Tips for Battery Longevity
Even with the right battery, issues can arise. Understanding common problems with polaris sportsman 570 battery size and care can save you from getting stranded. This is your essential polaris sportsman 570 battery size care guide.
Diagnosing a Weak or Dead Battery
Symptoms of a failing battery include slow engine cranking, dimming headlights when starting, or the winch operating sluggishly. If you hear that ‘click-click-click’, your battery likely doesn’t have enough power to engage the starter solenoid.
Top 3 Reasons Your Sportsman Battery Fails
- Parasitic Drain: Accessories that draw a small amount of power even when the key is off. This slowly kills a battery over time.
- Lack of Use: Letting your ATV sit for months without riding or using a battery tender is a surefire way to shorten its life.
- Vibration and Heat: The harsh off-road environment is tough on batteries. A loose battery or excessive engine heat can cause internal damage.
Best Practices for a Long and Healthy Battery Life
Follow these polaris sportsman 570 battery size tips to maximize your investment.
- Use a Battery Tender: If you don’t ride weekly, a smart battery tender (or maintainer) is the single best tool you can own. It keeps the battery at an optimal charge without overcharging it.
- Keep Terminals Clean: Check your terminals a few times a year for corrosion and clean them as needed.
- Check for Tightness: Ensure your battery hold-down bracket and terminal connections are always snug.
Sustainable Power: Eco-Friendly Battery Disposal and Choices
Being a responsible off-roader means taking care of the environment. A crucial part of this is handling old batteries correctly, which is a key aspect of a sustainable polaris sportsman 570 battery size strategy.
Why You Can’t Just Toss an Old ATV Battery
Lead-acid batteries contain toxic materials like lead and sulfuric acid. If they end up in a landfill, these materials can leach into the soil and groundwater, causing significant environmental harm. It is illegal in most places to dispose of them in your regular trash.
How to Properly Recycle Your Old Battery
The good news is that lead-acid batteries are one of the most recycled consumer products in the world! When you buy a new battery, the auto parts store or dealership will almost always take your old one for recycling, often giving you a credit (core charge) for it. You can also take them to local recycling centers or hazardous waste disposal facilities.
This eco-friendly polaris sportsman 570 battery size approach ensures the harmful materials are handled safely and the valuable lead is reused.
Frequently Asked Questions About Polaris Sportsman 570 Battery Size
What is the standard battery for a Polaris Sportsman 570?
The standard, most common battery size is a YTX20L-BS. This size provides the right physical fit, terminal configuration, and power capacity for most Sportsman 570 models.
Can I use a different size battery in my Sportsman 570?
It’s highly discouraged. Using a battery that is not a YTX20L-BS equivalent will likely lead to fitment issues, insecure mounting, and potentially inadequate power. Stick with the OEM-specified size for safety and reliability.
How long should a Sportsman 570 battery last?
With proper care, a quality AGM battery should last 3 to 5 years. A lithium battery can last significantly longer, often 8 to 10 years. Longevity depends heavily on your usage, storage, and whether you use a battery maintainer.
Do I need a special charger for a lithium ATV battery?
Yes, it is strongly recommended. While some modern multi-mode chargers have a lithium setting, using a standard lead-acid charger can damage a lithium battery. Always use a charger specifically designed for LiFePO4 batteries to ensure safety and maximize its lifespan.
Choosing the right battery for your Polaris Sportsman 570 is one of the most important maintenance decisions you’ll make. By understanding the correct size (YTX20L-BS), knowing the difference between AGM and Lithium, and practicing good battery care, you’re ensuring your machine is ready to fire up for every adventure.
Now you’re armed with the knowledge to make a confident choice and keep your ATV powered for years of trail-riding fun. Get out there, ride safe, and we’ll see you on the trails!
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