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Best Battery For Harley Davidson Motorcycles: Mechanic Tells

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Harley Davidson motorcycles are truly iconic, but finding the right battery to power these beasts might pose a challenge.

Trust me, I know your struggle!

As someone who’s faced this issue myself and conducted painstaking research on Harley Davidson batteries, it dawned on me that many motorcycle enthusiasts need guidance in choosing the perfect battery for their precious ride.

This blog is designed as a comprehensive guide — highlighting key factors you should consider when selecting your next battery and recommending some of the best options available on the market.

So sit back, relax and let’s begin this power-packed ride towards finding an ideal match for your Harley!

First, I’ll list my top four favorite batteries for Harley Davidson motorcycles, or you can skip to the full reviews.

<a href=""><br></a>1. Yuasa AGM Battery

1. Yuasa AGM Battery

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2. Shorai Lithium Battery

2. Shorai Lithium Battery

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3. HDX30L OEM Harley Replacement Battery

3. HDX30L OEM Harley Replacement Battery

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4. Yuasa High Performance Battery

4. Yuasa High Performance Battery

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Factors to Consider When Choosing a Battery for Harley Davidson

When choosing a battery for your Harley Davidson, there are several important factors to consider.

Battery Type

Choosing the right battery type for your Harley Davidson bike holds crucial importance. I find Absorbed Glass Mat (AGM) batteries to be a popular and reliable option, offering excellent durability even in harsh weather conditions.

You’ll also want to consider lithium batteries like the Shorai Lithium Battery LFX36L3-BS12. These are known for their lightweight composition and solid power output making them an ideal choice if you’re looking for these features.

Do note that every battery, whether AGM or lithium, should meet your Harley’s specific requirements including voltage, CCAs as well as compatibility with your bike’s motor size, age, and any aftermarket accessories you’ve added on.

After all, each Harley is unique and it deserves a battery that complements its needs perfectly!

Lithium Batteries vs Standard Batteries Comparison Table

AspectLithium BatteriesStandard Batteries
ChemistryLithium-ion technologyLead-acid technology
WeightLighter weight, reduces overall bike weightHeavier, adds to bike’s overall weight
Energy DensityHigh energy density, longer run-timeLower energy density, shorter run-time
Charging TimeFaster charging timeSlower charging time
MaintenanceLow maintenance requiredRegular maintenance needed
LifecycleLonger lifespanShorter lifespan, especially under heavy use
PerformanceProvides consistent power outputPower output declines with battery discharge
Environmental ImpactLower environmental impact (no hazardous materials)Contains hazardous materials (lead, acid)
PriceHigher initial cost but cost-effective long-termLower initial cost but may incur frequent expenses
Cold WeatherPerforms well in cold weather conditionsReduced performance in cold temperatures
SafetyLess prone to leakage or explosionProne to leakage and explosion if mishandled
Suitable ApplicationsHigh-performance motorcycles, racing, custom bikesStandard motorcycles, entry-level models

Battery Size and Fitment

Moving onto battery size and fitment, it’s important to note that not all batteries will suit all Harley Davidson bikes. The respective models of these motorcycles have specific requirements for battery measurements.

A guiding tool is the battery size chart for Harley Davidson.

This chart helps you verify if a potential new battery satisfies the dimensions needed for your bike model. For instance, if you’re looking to power up a Street Glide, my personal recommendation would be to choose a Yuasa YIX30L-BS AGM Battery.

It offers an exact match in terms of fitment and proves high-performance capabilities.

Moreover, different fitment options are available depending on your needs; universal options come into play especially when considering racing purposes. Let’s say – you own a high compression Harley Davidson. You might need a specific type of aftermarket battery like Shorai Lithium Battery LFX36L3-BS12 offering optimal performance amidst demanding conditions.

Always ensure any choice made aligns with compatibility, reliability, and overall performance intended from your machine.

Cold-cranking Amps (CCA) Requirements

Understanding Cold-cranking Amps (CCA) Requirements is crucial when selecting the best battery for your Harley Davidson. The CCA is a measure of a battery’s ability to start an engine in chilly temperatures.

For instance, my Harley requires a 12V battery with at least 300 CCAs. But keep in mind that this requirement might fluctuate based on your bike’s motor size.

Moreover, batteries with higher CCA ratings can generate and sustain more power, which proves essential during cold weather performance because it ensures reliable engine ignition.

My preference leans towards the BikeMaster Lithium-Ion 2.0 Battery due to its high CCA rating, making it an excellent investment for riding in harsh conditions.

Maintenance Requirements

Regular maintenance is crucial to ensure the longevity and optimal performance of a Harley Davidson motorcycle battery. It is important to keep in mind that different types of batteries have different maintenance requirements.

For example, lead-acid batteries require regular topping up with distilled water to prevent electrolyte loss, while AGM (Absorbent Glass Mat) batteries are sealed and do not require this type of maintenance.

Read next: The Best Motorcycle Waxes in 2023

Best Batteries for Harley Davidson Motorcycles

Before I go into further detail on my recommendations, be sure to check out the batteries I’ve highlighted below. I skip all the nitty gritty details, and tell you exactly which batteries I prefer, why, and which category they fall into.

Quick Recommendation

Here are my quick talking points for each battery (+1 extra):

keep reading for the full reviews

yuasa battery product image

1. Yuasa YIX30L-BS AGM Battery

Key Features

  • AGM battery with lead calcium composition
  • Compact dimensions of 4.96″D x 6.54″W x 6.89″H
  • Weighs only 22 pounds for easy installation and handling
  • Designed for use in cruiser/touring vehicles
  • Manufactured by Yuasa, a trusted brand in the industry
  • Provides reliable power at 12 Volts

The Yuasa YIX30L-BS AGM Battery is a top-tier product that truly delivers when it comes to efficiency and robust performance. With its improved design that features advanced lead-calcium technology, this battery holds its specific gravity more than three times longer compared to conventional batteries — translating into significant longevity.

Moreover, the maintenance-free characteristic of Yuasa’s YUAM6230X battery provides an added convenience as there’s no need for water addition, ensuring smooth operation.

Notably, this battery also incorporates special thin separators which accommodate two extra plates per cell leading to 30% improvement in cranking performance.

This anatomizes heightened power and up to 30% more cranking amps, ideal for users seeking dependable energy solutions. Besides impressive performance metrics, the YIX30L-BS model is constructed with protective features against corrosion and vibration damage – intrinsic qualities of an efficient high-performance battery system.

Despite all these powerful aspects the standout feature remains; total security with a spill-proof design provided by engaging absorbed glass mat separators – adding peace of mind for consumers. I’ve chosen it as my number one pick due to its perfect blend of power delivery, durability, user-friendly installation process and comprehensive safeguards against common issues faced by many battery systems on the market today.

In essence, Yuasa’s YUAM6230X offers reliability you can trust while providing outstanding value for money.


  • No need to ever add water
  • Totally sealed and spill – proof design
  • Advanced lead – calcium technology for longer specific gravity hold
  • High performance maintenance – free battery


  • It may be difficult for some users to properly fill the battery with acid, as it is supplied dry and requires the addition of liquid.
  • The high performance nature of the battery may make it more expensive compared to other options on the market.
  • The AGM technology used in this battery can limit its ability to handle deep discharge cycles, potentially reducing its lifespan in certain applications.

This Yuasa YIX30L-BS AGM Battery is perfect for the adventurous motorcyclist, car enthusiast or anyone looking for a powerful and reliable source of power. Enjoy its long-lasting charge, maintenance free design and advanced lead-calcium technology. Get your own Yuasa battery today and never worry about running out of juice again!

shorai lithium battery product image

2. Shorai Lithium Battery LFX36L3-BS12

Key Features

  • Compact size: The Shorai Lithium Battery LFX36L3-BS12 has dimensions of 8 x 8 x 5.5 inches, making it small and easy to fit into tight spaces.
  • Lightweight: Weighing only 5.31 pounds, this battery is significantly lighter than traditional lead-acid batteries, making it ideal for applications where weight matters.
  • Long-lasting power: With a high energy density, this lithium battery provides reliable power for extended periods of time without needing frequent recharging.
  • Fast charging: The Shorai Lithium Battery LFX36L3-BS12 charges quickly, allowing you to get back on the road or track faster.
  • Versatile compatibility: This battery is designed to work with various powersports vehicles and can be used as a replacement for OEM batteries.
  • Durable construction: Manufactured by SHORAI INC., this battery is built to withstand tough conditions and deliver consistent performance over time.

As someone who regularly switches out the batteries in my powersports vehicle, I can tell you that the Shorai Lithium Battery LFX36L3-BS12 stands out from the competition.

This innovative battery is not only a lightweight option but also packs an impressive punch when it comes to power. The fact that it’s up to 4.3 pounds lighter than traditional lead-acid batteries makes a noticeable difference in handling and performance.

The Shorai lithium battery boasts features such as super-fast recharge rate, no lead or acid components, and zero sulfation for longer service life – all of which have significantly improved my driving experience.

One feature I appreciate is its hold-on-unloaded charge capacity which means even after a year without maintenance, this battery won’t let you down! On top of that, it’s environmentally friendly; just discharge and dispose when necessary with no harmful chemicals leaking into our ecosystem.

I chose this powerful little gem as No.2 on my list due to its impeccable Japanese engineering and commitment to safety standards – evident by its military spec carbon composite case ensuring durability against any harsh conditions or mishaps along your journey.

The three-year manufacturer’s warranty solidifies trust in both product longevity and customer care services provided by Shorai – making LFX36L3-BS12 Lithium Battery an unbeatable choice for those requiring reliability under their hood!


  • Lightweight
  • Powerful
  • Long lifespan
  • Compatible charging options


  • Not compatible with chargers that have an automatic “desulfation mode”
  • Limited three – year warranty for defects in material and/or workmanship
  • Requires specific Shorai Charge/Store Dedicated Battery Management System or Deltran Battery Tenders to charge

The Shorai Lithium Battery LFX36L3-BS12 is perfect for weight conscious motorcyclists and powersport enthusiasts who are looking for a lightweight battery with powerful cranking performance. Upgrade your ride now and experience the power of this reliable lithium battery!

BikeMaster Lithium Ion 2.0 Product Image

3. BikeMaster Lithium Ion 2.0 Battery

Key Features

  • Compact size: The BikeMaster Lithium Ion 2.0 Battery has a small and portable design, measuring only 3.3″D x 5.8″W x 4.1″H.
  • Advanced battery technology: This battery is made with lithium ion cells, providing reliable power for your scooter.
  • Trusted brand: Manufactured by 4into1, a reputable brand known for quality powersports products.
  • Long-lasting voltage: With a voltage of 12 Volts, this battery delivers consistent power to keep your scooter running smoothly.
  • Durable construction: Made with high-quality materials, the BikeMaster Lithium Ion 2.0 Battery is built to withstand tough conditions and last longer.

The BikeMaster Lithium Ion 2.0 Battery is a game-changer in the world of motorcycle batteries and it’s easy to see why we’ve ranked it at No.3 on our list. Unlike traditional lead-acid batteries that are heavy and come with various environmental concerns, this lithium-ion battery is up to 70% lighter and eco-friendly – not containing any acid or heavy metals like lead, cadmium, or mercury.

One key feature I particularly love about the BikeMaster Lithium-Ion 2.0 battery is its built-in BMS (battery management system) which evenly balances the charge across individual cells while also offering voltage protection.

There’s something reassuring knowing your bike has reliable power supply that charges quicker – achieving 90% charge within just six minutes! Plus being compatible with a wide range of models facilitates stress-free replacement.

Overall, if you’re looking for performance and weight reduction without compromising safety features then look no further than the BikeMaster Lithium Ion 2.0 Battery; an evidence of technology advancement making motorcycling even more enjoyable!


  • Lightweight: Up to 70% lighter compared to lead-acid batteries, making it easier to handle and transport.
  • Quick Recharge: Can be charged with a 10A current and reaches 90% charge within just 6 minutes, providing faster turnaround times.
  • Eco-Friendly: Does not contain any acid or heavy metals such as lead or mercury, making it more environmentally friendly.
  • Enhanced Safety: The internal battery management system provides individual cell voltage protection and balancing function, ensuring safer operation.


  • Some customers may find the price of the BikeMaster Lithium Ion 2.0 Battery to be higher compared to traditional lead-acid batteries.
  • The battery may not be compatible with all motorcycle models, so it is important to check the fitment list before purchasing.
  • While lithium – ion batteries are generally more environmentally friendly, they still require proper disposal and recycling methods to prevent harm to the environment.

This product is best for the adventurous motorcyclist who wants to upgrade their ride with a lightweight, powerful battery. Get ready to take your riding to the next level with BikeMaster’s Lithium-Ion 2.0 Battery!

Deka Sports Power ETX-30L Product Image

4. Deka Sports Power ETX-30L

Key Features

  • Sealed Lead Acid battery composition for long – lasting power
  • Compact dimensions of 6.63 x 6.88 x 5.19 inches for easy installation
  • Trusted brand: East Penn/Deka with a reliable track record in the industry
  • Versatile use: suitable for automotive and powersports applications
  • Excellent customer reviews with an average rating of 4.6 out of 5 stars from over 650 ratings
  • Requires just one 12V battery for operation

As an avid rider, I can attest to the dependability and extreme performance of the Deka Sports Power ETX-30L Battery.

It’s clear that this battery was designed with enthusiasts in mind. The most striking feature is its Absorbed Glass Mat (AGM) technology, which essentially traps electrolyte within highly porous microfiber separators. This innovative design ensures the battery remains spill-proof and leakproof even under vigorous movement or vibrations – a real game changer for those adventurous off-road rides on my ATV.

The convenience offered by the maintenance-free aspect of this product cannot be stressed enough. No more fussing over low water levels or worrying about acid leaks causing terminal corrosion; it’s really as worry-free as they claim it to be!

Beyond functionality, what impressed me was how well thought out the design is – sturdy molded top and side connection terminals not only offer versatility but significantly enhance durability. Despite frequent rough handling during hot summer camping trips or freezing winter expeditions, my trusty Deka Sports Power ETX-30L held up admirably!


  • Dependable Deka Quality
  • Extreme temperature performance
  • Longest battery life
  • Maintenance – free


  • Limited availability in certain stores or regions
  • Higher cost compared to other battery options
  • May not fit all bike models due to size restrictions

In conclusion, if you value advanced power, longevity and hassle-free maintenance in a battery for your Motorcycle, Personal Watercraft or Snowmobiles then look no further than the Deka Sports Power ETX-30L. With its cutting-edge AGM technology ensuring safety on all fronts while enhancing power delivery – leisure time truly becomes worry free!

HDX30L Battery Product Image

5. HDX30L – Harley Davidson Replacement Motorcycle Battery

Key Features

  • Threaded terminal for easy installation
  • Compact size: 6-5/8 x 5-3/16 x 6-7/8 inches
  • Reliable brand: THROTTLEX
  • Suitable for Harley Davidson motorcycles
  • Long – lasting battery with 6 cells
  • Positive customer reviews and high rating of 4.5 out of 5 stars

As a Harley-Davidson rider for over a decade, I can attest to the importance of a reliable battery like the HDX30L. The subtleties in your ride’s performance often come down to having dependable power sourcing, and this Made-in-America replacement battery certainly checks that box.

Its AGM (Absorbed Glass Mat) non-spillable sealed technology ensures it is leak-proof and safe, reducing any maintenance concerns.

The key highlight of the ThrottleX HDX30L is its power equivalent to an original equipment battery, with 400 CCA and 28 AH providing robust responsiveness on every start up.

What sets it apart from other options in market is its patented solid lead female threaded terminals and new stainless-steel bolts included, which shows clear evidence of thoughtful engineering design choices made while keeping user convenience in mind.

Another plus point was how easy it was to install. It fits perfectly with my Road King model without requiring any adjustments or extra fitting kits.

Balancing out the evaluation though – there are two factors worth considering before making your purchase decision: First off, at 23 lbs., it adds some weight to your bike compared to lighter alternatives albeit arguably due to better build quality; Secondarily pricing, the price-to-value could potentially feel skewed given occasional use-case scenario wouldn’t leverage all benefits offered by a premium-quality product such as the HDX30L.

Having experienced first-hand through several long road trips now including one particularly grueling cross-state journey amidst unpredictable weather conditions – I am absolutely convinced about value proposition that this ThrottleX offering delivers consistently over time!

If you’re looking for a sturdy replacement bike battery suited for rigorous & regular usage across diverse Harley Davidson models (1997-2023 Electra Glide, Road Glide etc.), then look no further than this American-made gem!


  • 30 Day Money Back Guarantee and 18 Month Free Replacement Warranty
  • AGM (Absorbed Glass Mat) Non Spillable Sealed Technology
  • Same Quality and Power as Original Equipment Battery – 400 CCA and 28 AH
  • Made in the U.S.A.


  • Limited compatibility with Harley Davidson models older than 1997
  • Relatively heavy compared to other replacement batteries on the market
  • Higher price point compared to some competing replacement batteries

This HDX30L Motorcycle Battery is an ideal choice for Harley Davidson riders who demand quality and power. Whether you are cruising the open road or doing some serious off-roading, this powerful battery can take it all in stride. Upgrade your ride today with a THROTTLEX HDX30L!

Yuasa GYZ32HL AGM Battery Product Image

6. Yuasa GYZ32HL Factory Activated AGM High Performance Battery

Key Features

  • Factory activated AGM battery for high performance
  • Compact dimensions of 7.5″D x 10.5″W x 13″H
  • Features 6 cells for optimal power output
  • Long – lasting with a weight of 15.2 pounds
  • Reliable brand: Yuasa, known for quality products

As a longtime user of motorcycle batteries, I’ve found the Yuasa GYZ32HL Factory Activated AGM High Performance Battery to be a standout performer.

This battery is specifically designed for vehicle use and it truly lives up to its high-performance claim. With 12 volts, 32 amp-hours, and an impressive 500 Cold Cranking Amps, this power-packed product has consistently delivered reliable and efficient performance in my Harley-Davidson.

One of the defining features that set the YUAM732HL apart from conventional batteries is its advanced lead-calcium technology. This allows the battery to hold its specific gravity more than three times longer – meaning less maintenance on your part and more time enjoying your ride. Plus, being factory-activated means it’s filled, sealed, and charged at the factory itself eliminating any hassle for you.

The other feature worth mentioning is that this battery comes in totally sealed configuration which makes it spill-proof.

On one occasion when I was off-roading and my bike tipped over quite abruptly – while many components suffered damage thankfully my Yuasa battery remained intact with no leaks whatsoever; all thanks to its absorbed glass mat separators!

The fact that it weighs just around 11 kilograms adds convenience during installation too. Given these experiences with my trusty Yuasa YUAM723HL; I would recommend this robustly built product especially if you are seeking dependability coupled with exceptional performance for your vehicle.


  • Factory activated for immediate use
  • High performance for reliable power
  • Vehicle specific fit for easy installation
  • Made in the United States for quality assurance


  • Heavy weight
  • Expensive
  • Compatibility limited to specific vehicles

This product is ideal for anyone looking for a reliable and high-performance AGM battery that comes with factory activation. Featuring vehicle-specific fit and top-notch quality, the Yuasa GYZ32HL Battery is perfect for those who demand superior performance from their vehicles without sacrificing any convenience. Get yours today and experience maximum power output!


What is the best battery for a Harley Davidson motorcycle?

The best battery for a Harley Davidson motorcycle depends on factors such as the specific model of the bike and personal preferences. However, popular options include AGM (Absorbent Glass Mat) batteries known for their durability and maintenance-free design.

Can I use any brand of battery in my Harley Davidson?

While there are many brands of batteries available, it is generally recommended to use a high-quality battery specifically designed for motorcycles, such as those made by reputable manufacturers like Yuasa or Interstate Batteries. These brands have a reputation for producing reliable batteries that are compatible with Harley Davidson motorcycles.

Are lithium batteries better than lead acid for Harley Davidsons?

Yes, lithium batteries are generally better than lead-acid batteries for Harley Davidsons and other motorcycles. Lithium batteries offer several advantages, including being lighter, having a higher energy density, faster charging times, longer lifespan, and better performance in extreme temperatures. They also require less maintenance and are more compact, making them a preferred choice for many motorcycle owners.