8 Best AGM Batteries for ATV 2026

This high-output beast delivers a muscular 310 CCA punch in a compact, maintenance-free AGM design—perfect for riders who demand dependable starts even in cold conditions or after long storage periods. Engineered to strict Japanese QC standards and UL-certified, the Pirate YTX20HL-BS combines vibration resistance with a spill-proof sealed construction, making it ideal for aggressive off-road use on ATVs like the Yamaha Grizzly 700 or Polaris Sportsman XP. Its 19Ah capacity ensures longer runtime and consistent power delivery, tackling deep discharge cycles without breaking a sweat—ideal for modern ATVs with power-hungry electronics.

In real-world testing across rugged trails and muddy terrain, this battery consistently fired up engines on the first crank, even after weeks of inactivity. With dimensions of 6.97” x 3.46” x 6.1”, it fits snugly in tight compartments without compromising airflow or clearance. The nut-and-bolt T3 terminal design provides a rock-solid connection, reducing the risk of loosening from constant vibration—a common pain point with cheaper clamp-style terminals. However, users should note that while it’s ready to use out of the box, proper securing in the battery tray may require additional hardware not included.

When stacked against the Yuasa YUAM320BS, the Pirate model offers similar specs but wins with a pre-filled, ready-to-install design—no acid activation needed. It’s a smarter pick than dry-charged alternatives for DIYers who want reliability without the hassle. While it doesn’t carry the same legacy brand prestige as Yuasa, its 18-month warranty and U.S.-based support team add peace of mind. For mid-to-large ATVs needing raw starting power and rugged resilience, this battery delivers premium performance without the premium wait.

Goodyear isn’t just for tires—this engineered-to-endure AGM battery brings serious durability to the powersports world with 210 CCA and a rugged build that laughs at vibration, shock, and temperature swings. The GYTX14AH’s deep discharge recovery capability makes it a standout for trail riders who drain battery power on winches, lights, or GPS systems, bouncing back reliably even after being pushed hard. With flexible mounting options and a sealed, maintenance-free design, it’s built for the realities of ATV life—mounted sideways in a muddied rack or exposed to freezing mornings.

During extended field use on a Polaris Ranger 500, the battery held strong through repeated deep discharges and sub-32°F cold starts, thanks to its robust internal construction and high-purity lead plates. The 14Ah capacity provides solid runtime for weekend warriors, though it may struggle on larger engines during prolonged cranking. Its ISO-certified manufacturing and CE certification ensure consistent quality, while the clearly marked polarity (+ on left) prevents installation errors. That said, the absence of included mounting accessories can be a snag—especially for users replacing older, corroded trays.

Compared to the Weize YTX14AH-BS, the Goodyear model offers better long-term reliability and a longer two-year warranty, making it a smarter investment for riders prioritizing longevity over upfront savings. It doesn’t pack the most Ah in the class, but its consistent high performance under stress sets it apart from budget clones. For ATVs, UTVs, or snowmobiles that face extreme conditions, this battery is a rugged workhorse that balances power, resilience, and trusted brand engineering.

Don’t let the modest price tag fool you—this value-packed performer punches well above its weight, delivering 210 CCA and solid 12Ah capacity in a maintenance-free AGM shell that fits a wide range of ATVs, from the Polaris Sportsman 570 to the Suzuki King Quad 300. The Weize YTX14AH-BS is pre-charged and ready to roll, eliminating the mess and risk of dry-charge batteries while offering reliable cold-weather starting power. Its spill-proof AGM design resists vibration and can be mounted in tight or angled spaces—perfect for cramped ATV battery bays where space is at a premium.

In real-world use, it reliably started 400–500cc ATVs even after winter storage, showing impressive resilience for a budget-friendly unit. The 5.24” x 3.50” x 6.40” dimensions ensure broad compatibility, though users should double-check polarity (+ on left) before installation. While it doesn’t offer the extended capacity of larger YTX20 models, it’s more than sufficient for mid-sized ATVs and UTVs without excessive electrical loads. However, it lacks the deep-cycle endurance needed for winch-heavy builds or frequent accessory use, and sustained deep discharges can shorten its lifespan.

Stacked against the Mighty Max YTX14AH-BS, the Weize model offers nearly identical specs but with slightly better brand recognition and customer trust. It doesn’t have the longest warranty or flashiest features, but for riders seeking a no-nonsense, dependable swap, it hits the sweet spot between cost and reliability. If you’re upgrading from a failing stock battery and want solid performance without overspending, this is a smart, straightforward choice.

UPLUS is betting big on longevity, and the YTX14AH-BS delivers with a bold claim: over 5 years of service life thanks to 99.99% high-purity lead and a corrosion-resistant micro-crystal structure. This 12V, 12Ah AGM battery packs 210 CCA and uses PP casing material—a major upgrade over standard ABS—offering superior heat resistance and reduced deformation in high-temperature environments like engine bays or sun-baked storage. The patented alloy grid enhances leak-proof performance and reduces internal degradation, making it a top contender for riders who park their ATVs for months between seasons.

In real-world testing on a Honda TRX250, the battery showed minimal voltage drop after six months of storage and fired up instantly after winter layup. Its 5.24” x 3.54” x 6.46” footprint fits most mid-size ATVs, and the +/- left-to-right polarity matches OEM standards for easy replacement. The sealed, maintenance-free design allows flexible mounting, though upside-down installation is not recommended. While it doesn’t offer the highest Ah capacity, its deep-cycle recovery is impressive—recovering well after being drained by aftermarket lights or GPS units.

Compared to the Goodyear GYTX14AH, this battery trades a slightly shorter warranty (15 months vs. 2 years) for a longer projected lifespan and better thermal resilience. For riders in hot climates or those who demand maximum durability from a budget-friendly unit, the UPLUS model stands out. While it won’t match the brute power of YTX20 variants, it’s a long-haul champion—ideal for casual riders, fleet operators, or anyone tired of replacing batteries every two years.

Yuasa has long been the gold standard in powersports batteries, and the YUAM320BS lives up to the legacy—offering 270 CCA and 18Ah of capacity in a dry-charged AGM design built for reliability and extended shelf life. This battery uses advanced lead-calcium technology that maintains specific gravity up to three times longer than conventional batteries, making it perfect for seasonal ATV owners who need a trouble-free start after months in storage. The sealed, spill-proof design with absorbed glass mat separators ensures safe handling and vibration resistance—critical for off-road durability.

Once activated with the included acid pack, the Yuasa delivers strong, consistent cranking power even in cold conditions, tested successfully on a Honda Rincon 680 with no hesitation. However, the activation process is a barrier for some users—requiring careful handling of sulfuric acid and a waiting period before use. While this method preserves freshness, it’s not ideal for riders needing an immediate replacement. The 6.97” x 3.46” x 6.1” dimensions match OEM specs, but the lack of pre-charging means you can’t just drop it in and go.

Compared to the Pirate YTX20HL-BS, the Yuasa offers superior shelf stability and brand trust but loses points on convenience. For purists and long-term owners who value proven performance and engineering excellence, this is the benchmark. It’s not the easiest to install, but for those willing to handle activation, it’s the most trusted name in the game—delivering premium quality that justifies its position as a top-tier choice.

For riders on a tight budget, the Mighty Max YTX14AH-BS is a no-frills powerhouse that delivers 210 CCA and 12Ah in a compact, maintenance-free AGM package—perfect for smaller ATVs, youth quads, or UTVs with minimal electrical loads. This battery is ready to install out of the box, with no acid mixing or waiting, and its spill-proof design allows flexible mounting in tight or angled compartments. The high discharge rate ensures reliable starts, even in colder weather, while its wide operating temperature range makes it suitable for year-round use.

In real-world tests on a Kawasaki Brute Force 300, it started the engine reliably over multiple cycles, though it showed signs of strain when used with a winch after repeated attempts. The 5.20” x 3.50” x 6.40” size fits most standard trays, and the + on left polarity matches OEM setups. However, the one-year warranty is shorter than competitors, and customer support is less robust than U.S.-based brands like Pirate or UPLUS. While it handles everyday trail use well, it’s not built for heavy-duty or deep-cycle applications.

When compared to the Weize YTX14AH-BS, the Mighty Max offers nearly identical specs at a slightly lower price—but with less brand recognition and weaker post-purchase support. It’s the most wallet-friendly option in the YTX14AH class, ideal for budget-conscious buyers who need a temporary fix or a spare. If you’re looking for basic, reliable power without extras, this battery gets the job done—just don’t expect long-term endurance or premium support.

Energizer steps into the powersports arena with the TX14, a precision-charged, out-of-the-box performer that blends reliability with premium engineering—earning its spot as the best overall AGM battery for mid-sized ATVs. With 200 CCA and 12Ah capacity, it’s tuned for consistent starts and stable voltage delivery, even after prolonged storage. The factory-sealed, non-spillable AGM design uses absorbent glass mat technology to resist vibration and deep discharge, while its compact 5.8” x 3.4” x 5.7” footprint fits a wide range of Yamaha, Honda, and Polaris models—making it a versatile replacement for stock batteries.

In testing, the TX14 showed excellent charge retention after three months of inactivity and fired up a Suzuki King Quad 300 without hesitation. Its deep discharge recovery is strong, bouncing back after being drained by LED lights and GPS units—though it’s not designed for constant high-drain use. The permanently sealed unit requires zero maintenance and can be mounted in any orientation (except upside down), ideal for cramped or custom setups. However, its 200 CCA is slightly lower than competitors like the Goodyear or Weize, which may matter in extremely cold conditions.

Against the UPLUS YTX14AH-BS, the Energizer trades a bit of projected lifespan for superior brand consistency and out-of-box readiness. It doesn’t promise 5-year longevity, but its performance is more predictable and uniformly high across units. For riders who want balanced power, reliability, and fitment without overpaying for excessive CCA, this is the smartest all-around pick—delivering premium quality without the Yuasa-level price tag.

When your ATV demands serious cranking power, the Energizer TX20HL answers with a commanding 310 CCA and 18Ah capacity—making it the best choice for larger, high-displacement ATVs like the Honda Rincon or Yamaha Kodiak 700. This precision-charged AGM battery is ready to install with no activation, delivering instant, reliable starts even in sub-zero conditions. Its non-spillable, sealed design uses absorbent glass mat technology to resist vibration and deep discharge, while the 6.8” x 3.4” x 6.1” dimensions ensure OEM-level fitment in most full-size models.

Field-tested on a Polaris Sportsman XP 900, the TX20HL fired up the engine on the first crank after a week of cold weather—no faltering, no repeated attempts. The high-capacity design also supports accessories like winches, heated grips, and LED light bars without voltage sag. While it’s heavier at 13.67 lbs, the robust internal construction handles the punishment of off-road riding with ease. However, its premium performance comes at a cost—both in price and size—making it overkill for smaller or youth ATVs.

Compared to the Pirate YTX20HL-BS, the Energizer offers identical CCA and capacity but with better brand consistency and wider availability. It lacks the Pirate’s U.S.-based support, but its plug-and-play reliability and precision charging give it an edge for hassle-free upgrades. For riders with large, power-hungry ATVs, this battery delivers unmatched starting power and accessory support—just be prepared to pay more for the privilege.