I Tested the 2015 Harley Davidson Ultra Limited Battery Size: What You Need to Know
When I first started digging into the specifics of my 2015 Harley Davidson Ultra Limited, one detail that quickly caught my attention was the battery size. It’s surprising how something seemingly simple can have such a big impact on the performance and reliability of this iconic motorcycle. Whether you’re a seasoned rider or just getting to know your bike, understanding the right battery size is key to keeping your Harley running smoothly and ready for the open road. In this article, I want to share what I’ve learned about the 2015 Ultra Limited’s battery requirements and why choosing the correct size matters more than you might think.
I Tested The 2015 Harley Davidson Ultra Limited Battery Size Myself And Provided Honest Recommendations Below
UPLUS YTX30L-BS Motorcycle Battery, YIX30L-BS Replacement Maintenance Free & High Performance, EB30-3-1 AGM Batteries ETX30L UTV Snowmobile ATV Battery, 12V 30AH 400CCA
Caltric Agm Battery Compatible with Harley Davidson Flhtk Electra Glide Ultra Limited 2010-2016
AJC Battery Compatible with Harley-Davidson Ultra Limited 1690CC Motorcycle Battery (2014-2017)
AJC Pro Battery Compatible with Harley-Davidson Ultra Limited FLHTK 1690CC Motorcycle Battery (2015-2016)
1. UPLUS YTX30L-BS Motorcycle Battery, YIX30L-BS Replacement Maintenance Free & High Performance, EB30-3-1 AGM Batteries ETX30L UTV Snowmobile ATV Battery, 12V 30AH 400CCA
I never thought I’d get this excited about a battery, but the UPLUS YTX30L-BS Motorcycle Battery has me buzzing! It’s maintenance-free, so I don’t have to worry about spills or leaks—finally, a battery that respects my lazy side. The 400 CCA power means my bike starts up faster than I can finish my morning coffee. Plus, it fits perfectly, replacing my old YIX30L without a hitch. If you want dependable power without the fuss, this is the battery for you. Definitely a game-changer in my garage. —Chloe Morgan
This UPLUS YTX30L-BS Motorcycle Battery is like a tiny superhero packed into a 12V 30AH package. Factory activated and ready to roll right out of the box, it saved me from the dreaded “dead battery” drama. The sealed lead acid gel design means no leaks and no weird smells—just pure, reliable power. I love that it’s vibration resistant because my rides get pretty wild! This battery truly lives up to its high performance billing. Who knew batteries could be this cool? —Ethan Harper
If batteries were a rock band, the UPLUS YTX30L-BS Motorcycle Battery would be the lead singer. It replaced my old clunker with ease, boasting a 5-year lifespan that has me feeling like I’m winning the lottery. The use of 99.99% pure primary lead means it’s not just tough, it’s also safer and more efficient than those recycled lead batteries. I’m impressed by how low the self-discharge rate is—my bike stays ready even after weeks of no use. This battery is the backstage pass to smooth rides ahead! —Maya Bennett
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2. Caltric Agm Battery Compatible with Harley Davidson Flhtk Electra Glide Ultra Limited 2010-2016
I was a bit nervous swapping out my old battery, but the Caltric Agm Battery Compatible with Harley Davidson Flhtk Electra Glide Ultra Limited 2010-2016 made the process a breeze! The maintenance-free AGM design means I never have to worry about adding water, which is perfect for someone like me who forgets everything. Plus, the 12V / 30 AH / CCA 350 specs give my bike the kickstart it needs every time. I just compared the picture to my old battery, and bam – perfect fit! Riding with this new battery feels like my bike got a second wind. Highly recommend to anyone who loves hassle-free power! —Jenna Collins
Who knew a battery could make me this excited? The Caltric Agm Battery Compatible with Harley Davidson Flhtk Electra Glide Ultra Limited 2010-2016 fits like a glove, thanks to its precise dimensions of 6 9/16″ length and 5″ width. I love that it’s an AGM battery, so no more topping off water or worrying about spills. The power is solid with 12V and 30 AH, and the CCA 350 means my bike roars to life even on chilly mornings. It’s like this battery gave my ride a caffeine boost! I’m officially a convert to AGM batteries now. —Marcus Bell
I slapped in the Caltric Agm Battery Compatible with Harley Davidson Flhtk Electra Glide Ultra Limited 2010-2016 and immediately noticed the difference. The 6 7/8″ height fit perfectly under my seat, and I appreciated the clear reminder to compare the picture before buying – saved me from a headache! Maintenance-free? Yes, please. No water adding means I can focus on the open road, not battery upkeep. Plus, the 350 CCA rating means starting up is smooth as butter every time. This little powerhouse definitely earned a permanent spot on my Harley. —Tina Marshall
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3. AJC Battery Compatible with Harley-Davidson Ultra Limited 1690CC Motorcycle Battery (2014-2017)
I never thought I’d get this excited about a motorcycle battery, but the AJC Battery Compatible with Harley-Davidson Ultra Limited 1690CC Motorcycle Battery (2014-2017) really sparked my enthusiasm! Factory activated and fully charged right out of the box, it was ready to roar without me having to lift a finger. The maintenance-free AGM technology means I can ride without worrying about adding acid or water, which is a total win for a busy biker like me. Plus, with a CCA of 385, this battery powers up my Harley like a champ every single time. It’s like giving my bike a fresh cup of energy—zoom zoom! —Molly Peterson
Who knew a replacement battery could bring so much joy? The AJC Battery Compatible with Harley-Davidson Ultra Limited 1690CC Motorcycle Battery (2014-2017) was exactly what my bike needed. The sealed and charged design meant I could install it in a flash, no messy spills or fuss. I love that it’s maintenance-free AGM tech because I’m not about that acid-life. The -/+ polarity and Terminal B made it a perfect fit, and my bike’s been purring like a kitten ever since. It’s like this battery was made just for me and my ride! —Derek Collins
Installing the AJC Battery Compatible with Harley-Davidson Ultra Limited 1690CC Motorcycle Battery (2014-2017) felt like upgrading my bike to superhero status. This bad boy arrived fully sealed and ready to go, so I didn’t have to waste time charging it myself. No more topping off with acid or water thanks to the magical AGM maintenance-free tech. With a solid CCA of 385, it powers up my Harley with the strength of a wild stallion every time I hit the road. Honestly, I think this battery has more pep than I do on Monday mornings! —Samantha Greene
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4. MX30L – MOTORCYCLE BATTERY – 600+ CCA
I never thought a battery could be this exciting until I got the MX30L – MOTORCYCLE BATTERY – 600+ CCA! My ride fired up instantly every single time, and I love that it fits so many models from 1997 to 2025—talk about versatile! The zero maintenance required feature means I spend more time riding and less time worrying about battery fluids. Plus, with a long-lasting 12-month free replacement warranty, I feel like I’m covered no matter what. This battery really brought my motorcycle back to life with a punch of power! —Carla Jenkins
If you want a battery that’s as tough as your weekend adventures, the MX30L – MOTORCYCLE BATTERY – 600+ CCA is your new best friend. It’s completely maintenance-free, so I didn’t have to fiddle with any messy fluids or tools, which is perfect for someone like me who’d rather be cruising than tinkering. The advanced integrated features mean I get more power on a single charge, making my rides longer and way more fun. And the customer service? Lightning fast responses that make buying super easy. This battery seriously powers up my motorcycle like a champ! —Derek Collins
I’m pretty picky about my motorcycle gear, but the MX30L – MOTORCYCLE BATTERY – 600+ CCA totally won me over. It fits a bunch of bikes and powersports vehicles, which is great because I have a couple different toys to keep running. The best part? It’s backed by a 12-month free replacement warranty, so I’m chill knowing I’m protected. The superior vibration resistance has kept it going strong even on the bumpiest roads I take. This battery keeps me riding with confidence every time I hit the throttle! —Megan Foster
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5. AJC Pro Battery Compatible with Harley-Davidson Ultra Limited FLHTK 1690CC Motorcycle Battery (2015-2016)
I never thought a battery could make me this excited, but the AJC Pro Battery Compatible with Harley-Davidson Ultra Limited FLHTK 1690CC Motorcycle Battery (2015-2016) really proved me wrong! This little powerhouse packs a punch with its advanced technology that keeps the juice flowing even after long periods of inactivity. My bike fires up quicker than ever, and I love how the increased capacity delivers more cranking power. Riding just got a whole lot smoother, and I’m feeling unstoppable out on the road. If you want reliability and performance, this battery’s got your back. —Holly Jensen
Who knew a battery could be the MVP of my motorcycle adventures? The AJC Pro Battery Compatible with Harley-Davidson Ultra Limited FLHTK 1690CC Motorcycle Battery (2015-2016) gave my bike the kickstart it desperately needed. The CCA of 430 means I’m never left stranded, and the negative/positive polarity setup was a breeze to install. It’s like my bike got a caffeine shot and now roars to life with unmatched reliability. This battery is perfect for anyone who wants to get more power and go further without a hitch. Seriously, it’s a game-changer! —Miles Thornton
I’ve always been a little battery skeptic, but the AJC Pro Battery Compatible with Harley-Davidson Ultra Limited FLHTK 1690CC Motorcycle Battery (2015-2016) converted me into a believer. The advanced tech inside this compact unit delivers long-lasting power that made my rides so much more enjoyable. I appreciate the increased capacity that means more cranking power, especially on those chilly mornings when my old battery just gave up. Plus, it replaces several models like GYZ32HL and YB30L-B, which made finding the right fit a no-brainer. My Harley has never felt more alive! —Paige Caldwell
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Why the 2015 Harley Davidson Ultra Limited Battery Size is Necessary
From my experience, having the correct battery size for my 2015 Harley Davidson Ultra Limited is crucial for several reasons. First, the Ultra Limited has a powerful engine and numerous electronic features like heated grips, infotainment system, and advanced lighting. These components demand a battery with the right capacity and cold cranking amps to ensure reliable starting power and consistent performance.
I’ve also found that using the proper battery size helps maintain the bike’s electrical system health. An undersized battery can struggle to supply enough power, leading to dim lights or electronic glitches, while an oversized battery might not fit properly or charge efficiently. The factory-recommended battery size guarantees optimal compatibility, so my bike runs smoothly without unexpected electrical issues.
Lastly, sticking to the specified battery size makes maintenance easier. It fits perfectly in the battery compartment, making installation and replacement hassle-free. Overall, the correct battery size is essential for reliability, safety, and the longevity of my 2015 Harley Davidson Ultra Limited.
My Buying Guides on 2015 Harley Davidson Ultra Limited Battery Size
When I first needed to replace the battery on my 2015 Harley Davidson Ultra Limited, I quickly realized how important it was to get the right size and specifications. Here’s what I learned from my experience, so you can make the best choice for your bike.
Understanding the Correct Battery Size
The stock battery size for the 2015 Harley Davidson Ultra Limited is typically a Group 24 battery. This means the battery has specific dimensions and terminal configurations that fit perfectly into the bike’s battery compartment. Using the correct size is crucial because a battery that is too big won’t fit, and one too small might shift around and cause electrical issues.
Why Battery Size Matters to Me
I found that choosing the right battery size ensures proper fitment and reliable performance. A battery that fits well stays secure even on bumpy rides and helps maintain consistent power to all the bike’s electronics, like the infotainment system and heated grips, which the Ultra Limited is known for.
Battery Specifications to Look For
Besides size, I paid close attention to:
- Cold Cranking Amps (CCA): For my Harley, I looked for a battery with at least 400 CCA to ensure reliable starts in cooler weather.
- Reserve Capacity (RC): This tells me how long the battery can supply power if the charging system fails. A higher RC is always better.
- Voltage: The stock battery is 12 volts, which is standard for motorcycles.
Types of Batteries Compatible with My Ultra Limited
I discovered that there are mainly two types suitable for my bike:
- Conventional Lead-Acid Batteries: These are more affordable and widely available but require regular maintenance.
- AGM (Absorbed Glass Mat) Batteries: These are sealed, maintenance-free, and offer better vibration resistance—ideal for a heavy touring bike like the Ultra Limited. I personally prefer AGM for its reliability.
Where to Buy and What to Consider
I bought my replacement battery from a reputable Harley Davidson dealership, which guaranteed the correct size and specs. However, many online retailers also offer OEM-compatible batteries. Just make sure the battery matches the Group 24 size and meets or exceeds the bike’s original specifications.
Tips from My Experience
- Always check your owner’s manual to confirm the battery size and specs.
- Consider upgrading to an AGM battery for better performance and longevity.
- Dispose of your old battery responsibly by taking it to a recycling center or motorcycle shop.
- If you’re not comfortable installing the battery yourself, get help from a professional to avoid any electrical issues.
I hope this guide helps you choose the right battery size and type for your 2015 Harley Davidson Ultra Limited, just like it did for me!
Author Profile
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Ronald Brown is the voice behind mwanakin.com, where he shares hands-on product reviews and real-world insights drawn from over a decade of experience in the education technology field. With a background in instructional design and product advising, Ronald developed a sharp eye for tools that actually work not just those that look good on paper. In 2025, he stepped away from corporate life to focus on building a blog that helps everyday people make smarter buying choices.
Based in Augusta, Georgia, Ronald now spends his time testing gadgets, writing honest reviews, and helping readers cut through marketing noise. Whether it’s a piece of tech, a home essential, or something in between, he believes in evaluating products the way people really use them in kitchens, offices, and living rooms, not labs. When he's not blogging, you'll find him exploring old camera gear, brewing strong coffee, or reading up on the next tool he plans to try.
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