We analyzed manufacturer specifications and aggregated owner feedback to identify the best batteries for the Polaris Sportsman 500. Our evaluation focuses on cold cranking amps, build quality, and resistance to vibration specific to off-road conditions. We compared industry standards to ensure these recommendations meet the electrical demands of this ATV.
Our team researched technical sheets and verified fitment compatibility to narrow down the market. We prioritized maintenance free AGM designs that withstand the rigors of trail riding while providing consistent starting power. This guide presents a balanced view of performance versus longevity based on verified user experiences.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Yuasa YUAM320BS Best Overall 12V 14.4Ah 225 CCA |
9.1 | 🛒 Check Price |
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ThrottleX YTX14AH-BS Best Upgrade 12V 14Ah 210 CCA |
8.7 | 🛒 Check Price |
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Mighty Max Battery YTX14AH-BS Best Value 12V 14Ah 200 CCA |
8.4 | 🛒 Check Price |
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Weize YTX14AH-BS Reliable Choice 12V 14Ah 210 CCA |
8.1 | 🛒 Check Price |
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ACDelco ATX14BS Trusted Brand 12V 14Ah 200 CCA |
7.9 | 🛒 Check Price |
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Chrome Battery YTX14AH-BS Budget Option 12V 14Ah 200 CCA |
7.6 | 🛒 Check Price |
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Nutsvia YTX14AH-BS Basic Replacement 12V 14Ah 200 CCA |
7.3 | 🛒 Check Price |
1. Yuasa YUAM320BS: Best Overall

In our evaluation, the Yuasa YUAM320BS stood out for its exceptional build quality and reliable power delivery. We compared its specs against competitors and found its high cold cranking amp rating ensures consistent starts even in cold weather. Owner feedback indicates this battery offers a long service life, often exceeding expectations when maintained properly.
Based on the price point, casual riders who use their ATV infrequently might find this model offers more capacity than they need. However, for those demanding reliability, the investment is justified by the robust factory sealed design.
- Factory activated AGM design for immediate use
- High cold cranking amps for easy starts
- Spill proof construction allows flexible mounting
Pros: Superior build quality and plate density; Excellent cold weather performance
Cons: Higher cost compared to generic brands
2. ThrottleX YTX14AH-BS: Best Upgrade

We researched the ThrottleX YTX14AH-BS and found it provides a strong balance of power and durability. Its high discharge rate makes it suitable for riders who require quick ignition. The impact resistant case is a significant benefit for the rough terrain typical of Polaris Sportsman 500 usage.
Some owner feedback mentions the terminal bolts can be tight when connecting cables, requiring careful handling. Despite this minor issue, the battery remains a solid upgrade choice for its ability to handle vibrations and maintain charge.
- Sealed spill proof AGM technology
- High discharge rate for reliable ignition
- Impact resistant case design
Pros: Strong starting power and vibration resistance; Easy installation with clear terminals
Cons: Terminal bolts can be slightly tight during install
3. Mighty Max Battery YTX14AH-BS: Best Value
Our review of the Mighty Max Battery YTX14AH-BS highlights its excellent value proposition. We compared its cost to performance ratio and determined it is a top choice for budget conscious riders. The battery is rechargeable and can be mounted in various positions, which simplifies installation.
While it performs well in standard conditions, its lower cold cranking amps may struggle in extremely cold environments compared to higher end models. Riders in mild climates will find this to be a dependable and economical option.
- Rechargeable and mounts in any position
- Vibration resistant construction
- Maintenance free AGM design
Pros: Good lifespan for the price point; Compact and easy to fit in battery box
Cons: Lower CCA than premium models
4. Weize YTX14AH-BS: Reliable Choice

Weize offers a solid mid range option with the YTX14AH-BS. In our analysis, this battery meets standard specifications effectively and comes factory charged. It utilizes ABSorbent Glass Mat technology to prevent spills, which is crucial for off road applications.
Owner feedback suggests that while most units perform flawlessly, there are occasional reports of variability in quality control between batches. This inconsistency prevents it from ranking higher, but the included warranty adds a layer of security for the buyer.
- Absorbent Glass Mat technology
- Factory charged and ready to install
- 1 year warranty included
Pros: Consistent performance in daily use; Solid warranty coverage
Cons: Quality control varies slightly per batch
5. ACDelco ATX14BS: Trusted Brand

ACDelco is a well known name in the automotive industry, and the ATX14BS brings that reliability to your ATV. We evaluated its calcium lead alloy construction, which contributes to a longer shelf life and corrosion resistance. It is a maintenance free unit that comes ready to install.
The main drawback we found is its weight, as it is heavier than some of the more modern lithium or lightweight AGM alternatives. This may not be an issue for all riders, but those focused on weight reduction should consider this factor.
- Calcium lead alloy for extended life
- Sealed AGM design for safety
- High density negative plates
Pros: Reliable brand reputation; Consistent power output over time
Cons: Heavier than some competitors
6. Chrome Battery YTX14AH-BS: Budget Option

The Chrome Battery YTX14AH-BS is positioned as an entry level replacement. We researched its construction and found it meets basic requirements for the Polaris Sportsman 500. It is a maintenance free, sealed battery that is easy to install and get running quickly.
Based on owner feedback, this battery tends to have a shorter lifespan when subjected to frequent heavy discharge cycles. It is best suited for occasional riders who need a functional battery without paying premium prices.
- Valve regulated spill proof design
- Rugged construction for off road use
- Maintenance free operation
Pros: Low initial purchase cost; Readily available stock
Cons: Shorter lifespan under heavy use
7. Nutsvia YTX14AH-BS: Basic Replacement
Nutsvia provides a functional no frills battery option. Our comparison shows it offers the standard voltage and capacity required for the Sportsman 500. It is designed to be vibration proof, which is essential for ATV usage.
We noted that the overall finish and build quality feel less robust than higher ranked competitors. Riders who push their machines to the limit might experience issues with durability over time compared to the top picks on this list.
- Sealed lead acid AGM battery
- Vibration proof and leak proof
- Fits standard battery boxes
Pros: Adequate power for standard starting; Simple installation process
Cons: Lower build quality finish
Frequently Asked Questions
What size battery does a Polaris Sportsman 500 take?
Most Polaris Sportsman 500 models require a YTX14AH-BS or YTX20HL-BS battery depending on the year and specific model configuration. Always check your owner manual to confirm the exact group size and terminal polarity before purchasing.
Do I need to add acid to these batteries?
No, all the batteries listed in our guide are Absorbent Glass Mat (AGM) batteries. They come factory filled and sealed, meaning they are maintenance free and ready to install right out of the box.
How long do ATV batteries typically last?
Based on industry standards and owner feedback, a quality AGM ATV battery typically lasts between 2 to 4 years. Lifespan can vary significantly based on usage frequency, charging habits, and storage conditions during winter months.
Why does my ATV battery keep dying?
Frequent battery death is often caused by parasitic electrical draws, leaving accessories on, or prolonged storage without a trickle charger. Vibration from off road riding can also damage internal plates over time, reducing the battery’s ability to hold a charge.
Can I use a car battery charger for my ATV battery?
Yes, but you must use a charger with a low amp setting, typically 2 amps or less. Using a high amp car charger can damage the smaller ATV battery plates and reduce its overall lifespan significantly.
Our Verdict
After a thorough comparison of specs and owner experiences, we selected the Yuasa YUAM320BS as the top pick for its superior build quality and reliability. The ThrottleX YTX14AH-BS is our runner up, offering excellent performance and vibration resistance at a slightly lower price point.