9 Best AGM Battery for Motorcycle Reviews

You’re ready to hit the open road, but your motorcycle’s battery has other plans—a slow crank or a dead start can ruin any ride. Choosing the right AGM (Absorbed Glass Mat) battery means dependable power, no maintenance, and the ability to handle vibrations and temperature swings. Whether you ride a sportbike, cruiser, or dual-sport, the right battery keeps you moving without the hassle of topping off fluid levels.

In this guide, you’ll find nine top-rated AGM motorcycle batteries, each reviewed for specific use cases. We break down cold cranking amps (CCA), amp-hour ratings, dimensions, and terminal layouts so you can match the perfect battery to your bike. By the end, you’ll know exactly which model fits your ride and riding style.

Mighty Max Battery YTZ14S – Compact High-CCA Powerhouse

If you need a battery that packs 230 CCA into a small footprint, the Mighty Max YTZ14S is a strong contender. With dimensions of 6.00 x 3.44 x 4.38 inches and a 11.2AH capacity, it’s designed for bikes with limited battery trays—think sportbikes and some mid-size cruisers. The SLA/AGM construction means it’s spill proof, so you can mount it in any position without worrying about acid leaks. The high discharge rate ensures your engine fires up quickly, even after a week in the garage.

One thing to note: this battery comes with only the battery and screws—no wire harness or mounting accessories. You’ll need to reuse your existing hardware or purchase a terminal adapter if your bike uses a different connector. The polarity is positive on the left and negative on the right, which matches many Japanese and European motorcycles. It also handles deep discharges well, giving you a bit of forgiveness if you accidentally leave your lights on.

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• YTZ14S is a 12V 11.2AH 230 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
• Dimensions: 6.00 inches x 3.44 inches x 4.38 inches. Polarity: Positive on Left, Negative on Right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
• SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
• Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
• Full One Year Warranty

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Mighty Max Battery YTX14-BS – Reliable Mid-Size Street Bike Battery

The YTX14-BS from Mighty Max is a classic choice for street bikes and mid-size motorcycles. With 12AH capacity and 200 CCA, it provides ample starting power for most 600cc to 1000cc engines. Its dimensions (6.00 x 3.44 x 5.75 inches) fit standard battery trays, and the positive-on-left, negative-on-right polarity works with a wide range of bikes, including Honda, Kawasaki, and Yamaha models. The AGM design makes it maintenance free—no watering, no corrosion worries.

This battery excels in both high and low temperatures, so you can ride in summer heat or winter chill without losing performance. It’s also rechargeable and can be mounted in any orientation. Like other Mighty Max batteries, it ships with screws only, so check your bike’s terminal configuration before ordering. If you’re replacing a worn-out YTX14-BS, this is a direct drop-in that won’t disappoint.

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• YTX14-BS is a 12V 12AH 200 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
• Dimensions: 6.00 inches x 3.44 inches x 5.75 inches. Polarity: Positive on left, Negative on right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
• SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
• Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
• Full One Year Warranty

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Mighty Max Battery YTX20L-BS – Heavy-Duty Power for Cruisers

For larger motorcycles with big engines and accessory loads, the Mighty Max YTX20L-BS brings 18AH and 270 CCA to the table. Measuring 6.88 x 3.50 x 6.13 inches, it fits many Harley-Davidson and touring bikes. The polarity is reversed—negative on left, positive on right—so double-check your bike’s configuration before purchasing. This battery is built to handle heavy-duty electrical loads, powering heated grips, extra lights, and audio systems without breaking a sweat.

Weatherproof reliability is a standout feature: rain, snow, or heat, this battery powers through. The AGM construction resists shocks and vibrations, which is crucial for long rides on rough roads. It’s also maintenance free, so you never need to add water. Keep in mind that like other Mighty Max batteries, it does not include a wire harness, so you’ll need your existing cables or purchase compatible ones separately.

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• YTX20L-BS is a 12V 18AH 270 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
• Dimensions: 6.88 inches x 3.50 inches x 6.13 inches. Polarity: Negative on left, Positive on right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
• Weatherproof Reliability: In rain, snow, or heat, this battery powers through.
• Built for Performance: Handles heavy-duty electrical loads without breaking a sweat.
• Consistent Power Output: Handles demanding electrical loads without a hitch.
• Rechargeable battery that can be mounted in any position, resists shocks and vibration.
• Maintenance free and sealed design.
• Full One Year Warranty

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WEIZE YTX14-BS ATV Battery – Versatile for Dual-Sport and ATVs

The WEIZE YTX14-BS is a sealed AGM battery that’s ideal for ATVs, motorcycles, scooters, and snowmobiles. It offers 12AH and 200 CCA in a slightly smaller footprint than the Mighty Max version—5.90 x 3.42 x 5.70 inches. The polarity is positive on the left (red terminal) and negative on the right (black), matching many Honda, Suzuki, Kawasaki, and Yamaha models. It comes already charged and sealed, so you can install it right out of the box.

What sets this battery apart is its certifications: UL, CE, and ISO 9001 approved. The ABS case and AGM separator ensure durability and leak resistance. It’s compatible with a wide range of vehicles, including the Honda Rancher, Suzuki Eiger, and Yamaha Raptor. The recommended charge current is 1.3A, so use a smart charger for best results. It’s a solid choice if you need a battery that can handle off-road vibrations and occasional deep discharges.

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• YTX14 BS Battery Specifications：Dimensions: (L) 5.90 in x (W) 3.42 in x (H) 5.70 in； CCA: 200；Capacity (10 hours rate): 12AH；Charge Current (A): 1.3A；Case Material: ABS；Separator: AGM；UL, CE and ISO 9001 Certified. Terminal： Left : Positive (+)-Red, Right: Negative (-)-Black.
• This YTX14-BS is a sealed lead-acid (SLA) absorbed glass mat (AGM) rechargeable battery.AGM and GEL batteries are lead-acid and of the same battery chemistry.Comes already charged, sealed, maintenance free, and ready to install.Premium quality absorbed glass mat technology (AGM) is ideal for ATVs, Motorcycles, Personal Watercraft, Scooter，Jet Ski's, Snowmobiles and more.
• CTX14-BS Battery for Motorcycle: Compatible with Aprilia 750cc 900cc 1200cc 1000cc 850cc,BMW 650cc 798cc 800cc 1200cc ,Honda 1100cc ,Kawasaki 1200cc,Suzuki ,Triumph,Yamaha 1000cc; Compatible with yamaha Snowmobile 1000cc 500cc, for Honda UTV 700cc 500cc 1000cc. More specific model pls see our description!!
• ETX14-BS Battery for ATV: Compatible with HonDA 400CC,500CC,300CC,350CC Fourtrax Rancher,Suzuki 400CC,450CC,700CC LT-A400 Eiger 2WD, F Eiger 4WD,Yamaha 660CC YFM660RN, RT, RP, RR, RL, RS Raptor
• Size, cold cranking amps, terminal location and battery type are key pieces to getting the right unit. please measure your old battery and compare the dimensions with this battery, if the measurements are the same, positive and negative poles are consistent, CCA is no big difference, it will fit for your vehicle. It is recommended to replace the battery every two years to prevent the motorcycle from failing to start.

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Mighty Max Battery YTX7L-BS – Lightweight for Small Bikes & Scooters

If you own a small motorcycle, scooter, or moped, the Mighty Max YTX7L-BS is a lightweight option that won’t weigh you down. With only 6AH capacity and 100 CCA, it’s designed for engines up to about 250cc. Its compact dimensions (4.40 x 2.75 x 5.19 inches) fit tight battery compartments, and the polarity is positive on the right and negative on the left—unusual for Mighty Max, so verify your bike’s layout. The AGM construction means it’s spill proof and maintenance free.

Despite its small size, this battery delivers reliable starting power and can be mounted in any position. It’s also rechargeable and resists shocks and vibrations well. The low CCA means it’s not suited for cold climates or large engines, but for a daily commuter or weekend toy, it gets the job done. Just remember that no wire harness is included, so you’ll need to use your existing connectors.

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• YTX7L-BS is a 12V 6AH 100 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
• Dimensions: 4.40 inches x 2.75 inches x 5.19 inches. Polarity: Positive on Right, Negative on Left. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
• SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
• Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
• Full One Year Warranty

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Mighty Max Battery YTX12-BS – Standard Power for Metric Bikes

The YTX12-BS from Mighty Max strikes a balance between size and power, offering 10AH and 180 CCA in a 5.90 x 3.34 x 5.11-inch package. It’s a common replacement for many metric motorcycles, including Suzuki, Kawasaki, and Yamaha models. The polarity is positive on the left and negative on the right, which aligns with most standard battery trays. The AGM technology makes it maintenance free and spill proof, so you can mount it in any orientation.

This battery performs well in both high and low temperatures, and its 180 CCA is sufficient for most 400cc to 750cc engines. It also handles deep discharges better than standard flooded batteries, giving you a safety net if you accidentally drain it. Like other Mighty Max batteries, it ships with screws only—no harness. If you’re looking for a reliable mid-range option that won’t break the bank, this is a solid pick.

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• YTX12-BS is a 12V 10AH 180 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
• Dimensions: 5.90 inches x 3.34 inches x 5.11 inches. Polarity: Positive on left, Negative on right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
• SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
• Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
• Full One Year Warranty

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UPLUS YTX20HL-BS – High-Performance Touring with 310 CCA

The UPLUS YTX20HL-BS is a powerhouse designed for touring bikes and snowmobiles, offering 18Ah and a massive 310 CCA. Its dimensions (6.89 x 3.43 x 6.1 inches) are nearly identical to the standard YTX20L-BS, but with higher cranking amps and a claimed 5-year lifespan. The polarity is negative on the left and positive on the right, so check your bike’s wiring. What sets UPLUS apart is the use of PP (polypropylene) material for the case, which offers better heat resistance than traditional ABS and resists deformation in high-temperature environments.

This battery also features a patented alloy that improves corrosion resistance and leak-proof performance. The maintenance-free design means you never add water, and the AGM construction handles vibrations and shocks. It’s compatible with many Harley-Davidson, Honda, and Yamaha models, as well as jet skis and ATVs. The 310 CCA ensures strong starts even in freezing weather. The only downside is the weight—13.1 lbs—but that’s expected for a high-capacity battery.

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• 🔋—Motorcycle battery YTX20HL-BS is a 12V 18Ah 310 Cold Cranking Amps (CCA) AGM (Maintenance Free) Battery.Dimensions: 6.89 inches x 3.43 inches x 6.1 inches.Weight: 13.1 Lbs Polarity: [-,+]. Correctly sized replacements for YTX20HL-BS,YTX20L-BS
• 🔋—5 years using time: With 99,9% above-average high purity level and corrosion resistant micro crystal structure, which ensures that our battery have over 5 years lifetime
• 🔋—PP material: The battery is made of PP material, which has better heat resistance and stronger usability in high temperature environment than traditional ABS material, and is not easy to deform
• 🔋—Safe to use: The use of our patented alloy greatly improves the battery's corrosion resistance and leak-proof performance. Maintenance-free design make battery to use without adding acid and water to ensure your safe use
• 🔋— US local office: We have established offices and warehouses in US. If product have any problems, we can solve it for you in USA. We provide 15 months warranty , and we will reply to your email within 12 hours

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WEIZE YTX20HL-BS – Cold-Weather Starting Specialist

The WEIZE YTX20HL-BS is a sealed AGM battery that delivers 18AH and 300 CCA, making it an excellent choice for riders in colder climates. With dimensions of 6.88 x 3.42 x 6.1 inches and polarity positive on the right, negative on the left, it fits many large motorcycles and snowmobiles. The AGM technology ensures spill-proof operation and resistance to vibration, so you can mount it in any position without worry.

This battery is designed for high discharge rates and wide operating temperatures, meaning it performs reliably whether you’re starting your bike on a frosty morning or riding through summer heat. It also recovers well from deep discharges, which is a bonus if you occasionally drain the battery with accessories. Like most WEIZE batteries, it comes ready to install with screws included—no harness. If you need a battery that won’t let you down when the temperature drops, this is a strong contender.

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• YTX20HL-BS is a 12V 18AH 300 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
• Dimensions: 6.88 inches x 3.42 inches x 6.1 inches. Polarity: Positive on right, Negative on left. Listing is for the Battery and Screws only. No wire harness or mounting accessories included
• SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
• Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
• 1-Year Warranty：30 day money refund policy and full 1 year warranty. We aim for quality followed up with quality customer service, Amazon doesn't deal with the return of battery-related products, so please contact the seller directly. Weize support team is on standby for YOU.

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Daakmax YTX20HL-BS – Large Displacement Power with 20Ah

The Daakmax YTX20HL-BS stands out with its 20Ah capacity and 310 CCA, offering the highest amp-hour rating in this roundup. Dimensions are the standard 6.88 x 3.42 x 6.1 inches, and polarity is left negative, right positive. This battery is designed for large displacement motorcycles, ATVs, UTVs, and snowmobiles, including Harley-Davidson and Honda models. The sealed AGM technology prevents leaks and corrosion, and it’s built to withstand shocks and vibrations.

Daakmax recommends replacing this battery every two years for optimal performance, but with proper care, it can last longer. The 20Ah capacity means it can power accessories like heated gear and audio systems without draining quickly. It’s also maintenance free, so you never need to check electrolyte levels. The only potential drawback is that it may be overkill for smaller bikes, but if you have a big engine or heavy electrical load, this battery delivers the reserve capacity you need.

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• ✅ High Performance & Reliable: Daakmax YTX20HL-BS is a 12V 20Ah sealed AGM (Absorbed Glass Mat) battery offering 310 cold cranking amps (CCA). Designed to deliver superior starting power and reliable performance even in cold weather.
• ✅ Easy Installation & Replacement：Dimensions: 6.88 x 3.42 x 6.1in, with left negative (-) and right positive (+) terminals. Ideal for replacing worn-out batteries, with a recommended replacement cycle every two years for optimal performance.
• ✅ Widely Compatible: Compatible with Harley Davidson motorcycles, Honda ATV/UTV models, and snowmobiles, and replaces multiple part numbers including YTX20HL-BS, ETX20L, 20HL-BS, YTX20HL, and Yuasa YTX20HL-BS.
• ✅ Sealed AGM Technology: This AGM (Absorbent Glass Mat) battery features a sealed design, preventing leaks and corrosion, and is suitable for mounting in any position. Built to withstand shocks, vibrations, and high/low temperatures.
• ✅ Durable & Reliable：Constructed to provide long-lasting durability with ISO9001/CE/UL certifications, the Daakmax YTX20HL-BS ensures a high level of reliability in rugged and demanding conditions.

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Buyer’s Guide: What to Consider

Choosing the right AGM battery for your motorcycle involves more than just picking a model that fits. You need to consider power requirements, physical dimensions, and how you ride. This buying guide covers the key factors to help you make an informed decision.

• Cold Cranking Amps (CCA): CCA measures how many amps a battery can deliver at 0°F for 30 seconds. Higher CCA means easier starting in cold weather. For most motorcycles, 200-300 CCA is sufficient; small bikes can get by with 100-150 CCA.
• Amp-Hour (AH) Capacity: AH indicates how long a battery can provide a steady current. A higher AH rating supports longer rides and more accessories. For basic street bikes, 10-12AH is fine; touring and cruiser bikes often need 18-20AH.
• Dimensions & Fitment: Measure your battery tray before buying. Common sizes like YTX14-BS (approx. 6×3.4×5.7 inches) fit many bikes, but always check length, width, and height. A battery that's too tall may not close the seat or side cover.
• Terminal Polarity: Polarity varies by battery model. Some have positive on left, others on right. Reversing polarity can damage electronics. Confirm your bike's terminal orientation and compare with the battery's specification.
• AGM vs. Gel vs. Flooded: AGM (Absorbed Glass Mat) batteries are maintenance free, spill proof, and vibration resistant, making them ideal for motorcycles. Gel batteries are similar but charge slower. Flooded batteries require periodic water checks and can leak.
• Maintenance & Lifespan: AGM batteries are sealed and require no watering. Use a smart charger to avoid overcharging. Most AGM batteries last 3-5 years with proper care. Some manufacturers claim longer lifespans, but real-world performance varies.
• Brand & Certifications: Reputable brands like Mighty Max, WEIZE, and UPLUS offer reliable products. Look for UL, CE, or ISO certifications as signs of quality control. Customer reviews can also reveal real-world durability and fitment issues.

Conclusion

Finding the best AGM battery for your motorcycle comes down to matching your bike’s power needs, size constraints, and riding conditions. Whether you need a compact battery like the Mighty Max YTZ14S for a sportbike, a high-capacity option like the Daakmax YTX20HL-BS for a touring rig, or a cold-weather specialist like the WEIZE YTX20HL-BS, there’s a model here that fits.

For most riders, the Mighty Max YTX14-BS offers a solid balance of capacity, CCA, and price. If you ride in extreme cold or have heavy electrical loads, the UPLUS or Daakmax YTX20HL-BS variants provide extra headroom. Always double-check your bike’s battery tray dimensions and terminal polarity before purchasing. With the right AGM battery, you’ll enjoy maintenance-free starting power for years to come.