After researching manufacturer specifications, published industry standards (BCI, SAE), and aggregated owner feedback from thousands of Honda Foreman 500 riders, we compared the top battery replacements. Our evaluation focuses on cold cranking amps, reserve capacity, durability in off-road conditions, and ease of installation. Whether you ride in extreme cold or need a maintenance-free upgrade, this guide covers the best options.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
Yuasa YUAM620B YTX20HL-BS Best Overall AGM AGM, 310 CCA, 18 Ah |
9.0 | 🛒 Check Price |
 |
Antigravity Batteries ATX-20 Re-Start Best Lithium Upgrade Lithium Iron Phosphate, 540 CCA, 20 Ah |
8.7 | 🛒 Check Price |
 |
Mighty Max ML18-12 12V 18AH Best Budget AGM AGM, 18 Ah, 270 CCA |
8.4 | 🛒 Check Price |
 |
Odyssey PC680 Best for Extreme Conditions AGM, 680 CCA, 16 Ah |
8.1 | 🛒 Check Price |
 |
Deka ETX20L Reliable OEM Replacement AGM, 310 CCA, 18 Ah |
7.8 | 🛒 Check Price |
 |
Chrome Battery YTX20HL-BS High-Capacity AGM AGM, 350 CCA, 20 Ah |
7.5 | 🛒 Check Price |
 |
Weize YTX20HL-BS Budget Lead-Acid Alternative Lead-Acid, 18 Ah, 280 CCA |
7.2 | 🛒 Check Price |
1. Yuasa YUAM620B YTX20HL-BS: Best Overall AGM
Yuasa is a leading OEM supplier for Honda, and the YUAM620B is a direct fit for the Foreman 500. In our evaluation, this AGM battery delivers consistent 310 CCA, which meets or exceeds the factory requirements. Owner feedback highlights its reliability over multiple seasons, even in sub-freezing temperatures. The spill-proof case and vibration resistance are well-suited for off-road use.
However, the Yuasa comes at a higher cost than some competitors. If you are on a tight budget, there are adequate cheaper options, but for those who want a long-term, worry-free battery, this is a top choice. It is not ideal for riders who need extreme deep-cycle performance for high-draw accessories.
- Factory replacement for many Honda ATVs including Foreman 500
- Maintenance-free AGM design with spill-proof construction
- High cold cranking amps (310 CCA) for reliable cold starts
Pros: Excellent build quality and long service life based on owner reports; Pre-filled and ready to install, no acid handling required
Cons: Premium price compared to generic AGM batteries
2. Antigravity Batteries ATX-20 Re-Start: Best Lithium Upgrade
The Antigravity ATX-20 is a premium lithium battery that offers exceptional cranking power and a unique Re-Start feature. In our evaluation, its 540 CCA is overkill for the Foreman 500, but it ensures effortless starts even in cold weather. Owners rave about the weight savings and the peace of mind from the built-in jump-start button. The battery includes a Battery Management System (BMS) for overcharge and over-discharge protection.
That said, the price is steep, and not every rider needs lithium’s advantages. If you rarely ride in extreme cold or have minimal electrical accessories, the extra expense is hard to justify. Also, lithium batteries can be damaged by standard lead-acid chargers, so you may need to invest in a special charger. Skip this if you prefer a simple, low-maintenance battery.
- Lithium-ion with built-in Re-Start technology: jump-starts itself if drained
- Weighs only 3.5 lbs, saving over 7 lbs vs. lead-acid
- 540 CCA equivalent, far exceeding stock requirements
Pros: Extremely light and powerful, great for weight reduction; Self-jump feature can be a lifesaver on the trail
Cons: High cost; may not be justified for casual riders; Requires a compatible lithium charger for optimal longevity
3. Mighty Max ML18-12 12V 18AH: Best Budget AGM
The Mighty Max ML18-12 is a budget-friendly AGM battery that fits the Honda Foreman 500. We compared its specs to the OEM requirements: 18 Ah capacity is adequate, but 270 CCA is slightly below the stock battery’s 300 CCA. Owner feedback indicates it works well for moderate climates and typical riding. It’s sealed and spill-proof, making it safe for off-road use.
However, in very cold conditions or for riders who demand maximum cranking power, the lower CCA can be a drawback. Some owners report a shorter service life (2-3 years) compared to higher-end AGMs. If you frequently ride in freezing temperatures or have a high-compression engine, consider a battery with higher CCA. The Mighty Max is best for casual riders looking to save money.
- Low-cost AGM alternative with good capacity for the price
- Sealed and maintenance-free design
- Compatible with standard chargers
Pros: Very affordable; excellent value for budget-conscious buyers; Solid performance for stock electrical needs
Cons: Lower CCA (270) may struggle in extreme cold; Not as durable as premium brands; shorter lifespan reported by some owners
4. Odyssey PC680: Best for Extreme Conditions
The Odyssey PC680 is a high-performance AGM battery known for its extreme durability and massive 680 CCA. In our evaluation, this battery is overkill for stock Foreman 500 starting needs, but it shines in cold weather and for riders who add high-draw accessories. The pure lead construction provides a long cycle life, and owner reports often mention 5+ years of service. It’s also highly resistant to vibration, a key factor for ATVs.
However, the PC680 is physically smaller than the stock battery, requiring an adapter or spacer to fit securely. This can complicate installation. Additionally, its 16 Ah capacity is lower than the standard 18 Ah, so it may not support extended winch use or auxiliary lights as well. If you need a simple drop-in replacement, look elsewhere. It’s best for those who prioritize cranking power and durability over capacity.
- Extremely high CCA for its size, great for cold starts
- Vibration-resistant and durable, designed for harsh environments
- Long lifespan with up to 10 years in standby use
Pros: Outstanding cranking power and deep-cycle capability; Excellent vibration and shock resistance
Cons: Smaller capacity (16 Ah) may limit accessory use; Requires a different hold-down bracket (not a direct fit for all Foreman 500 models)
5. Deka ETX20L: Reliable OEM Replacement
The Deka ETX20L is a solid AGM battery that matches the stock specifications. We researched owner feedback and found it to be a reliable choice for riders who want a straightforward replacement without paying a premium. Its 310 CCA and 18 Ah capacity are identical to the factory battery, so starting power is sufficient for most conditions. The battery is sealed and vibration-resistant, suitable for off-road use.
On the downside, some users have reported that the battery lasted only 2-3 years, which is average but not exceptional. Availability can also be an issue compared to more popular brands. If you can find a good price, it’s a decent option, but for similar cost, the Yuasa may offer better longevity. Skip this if you want a battery with a proven long track record.
- Direct replacement for YTX20HL-BS and similar sizes
- Maintenance-free AGM with good cold-cranking performance
- Made in the USA with a solid reputation
Pros: Reliable performance and good value for OEM specs; Easy installation, fits stock battery tray
Cons: Not as widely available as Yuasa or Mighty Max; Some owners report shorter lifespan than expected
6. Chrome Battery YTX20HL-BS: High-Capacity AGM
The Chrome Battery YTX20HL-BS offers a bump in capacity (20 Ah) and CCA (350) over the stock battery. In our evaluation, this makes it a good choice for riders who have added electrical accessories like winches or LED light bars. The AGM construction is maintenance-free and safe for off-road use. Owner feedback generally praises its performance, especially in colder climates.
However, we found reports of quality control issues, with some batteries failing prematurely. Additionally, the physical size is slightly larger than OEM, which might require minor modifications to the battery tray. If you need a high-capacity battery and are willing to accept some risk, this is a viable option. But for those who want guaranteed reliability, stick with more established brands.
- Higher capacity (20 Ah) than standard for extended accessory use
- 350 CCA provides extra cold-start power
- Sealed, spill-proof, and vibration-resistant
Pros: Great for riders with winches, lights, or other accessories; Higher CCA than stock for better cold-weather starts
Cons: Some owners report inconsistent quality control; Slightly larger dimensions may require adjustment of the battery hold-down
7. Weize YTX20HL-BS: Budget Lead-Acid Alternative
The Weize YTX20HL-BS is a conventional lead-acid battery that is the most affordable option for the Honda Foreman 500. We compared its specs and found 280 CCA, which is below the stock 300 CCA. In mild climates, it will start the engine, but in freezing conditions, it may struggle. The battery is not sealed, so you must add acid and periodically check the electrolyte level.
Owner feedback indicates that this battery works for basic needs but often fails within 1-2 years, especially if subjected to vibration or deep discharges. If you ride only in warm weather and want to save every penny, this could work. However, for most riders, the extra cost of an AGM battery is worth the reliability and convenience. Skip this if you ride in cold climates or want a maintenance-free experience.
- Conventional lead-acid battery at a low price point
- Fits standard battery tray without modification
- Requires initial acid filling and periodic maintenance
Pros: Very inexpensive; suitable for tight budgets; Readily available and easy to find
Cons: Lower CCA (280) may not start in severe cold; Not maintenance-free; requires checking electrolyte levels; Shorter lifespan compared to AGM batteries
Frequently Asked Questions
What type of battery is best for a Honda Foreman 500?
For most riders, an AGM (Absorbent Glass Mat) battery is the best choice. AGM batteries are maintenance-free, spill-proof, and vibration-resistant, making them ideal for ATV use. They provide reliable cold-cranking power and a longer lifespan than conventional lead-acid batteries. Lithium batteries are a premium upgrade for weight savings and extra power, but they cost significantly more.
What are the correct battery specifications for a Honda Foreman 500?
The stock battery is typically a YTX20HL-BS size, with 18 Ah capacity and around 300 CCA. Always check your owner’s manual for the exact requirements. Most aftermarket batteries in this guide meet or exceed these specs. Ensure the terminal orientation (positive on the right when facing the battery) matches your model.
Can I install a lithium battery in my Honda Foreman 500?
Yes, you can install a lithium battery like the Antigravity ATX-20, but you must ensure it is compatible with your ATV’s charging system. Lithium batteries require a specific charger and should not be charged with standard lead-acid chargers. They also have a Battery Management System (BMS) that protects against overcharging. Some riders report that the lighter weight improves handling.
How do I know if my battery needs replacement?
Signs include slow cranking, dim headlights, or the battery not holding a charge. You can test the voltage with a multimeter: a fully charged battery should read 12.6-12.8 volts. If it drops below 12.4 volts after sitting overnight, it may be failing. Load testing at an auto parts store can confirm the condition.
What should I do if my battery dies on the trail?
If you have a lithium battery with a Re-Start feature, press the button to jump-start the battery from its reserve. For other types, carry a portable jump pack or use jumper cables from another vehicle. To prevent future issues, ensure your battery is fully charged before rides and consider upgrading to a higher-capacity AGM battery if you use many accessories.
Our Verdict
After researching and comparing all options, the Yuasa YUAM620B YTX20HL-BS is our top pick for its proven reliability, perfect fit, and strong performance across all conditions. It’s the safest choice for most Foreman 500 owners. For those seeking a lightweight upgrade with unique features, the Antigravity ATX-20 Re-Start is an excellent runner-up, provided you’re willing to invest in the premium cost and lithium-specific maintenance.
