I Tested the Honda Grom Battery Size: What You Need to Know Before Replacement
When I first started diving into the world of Honda Groms, one detail that quickly caught my attention was the battery size. It might seem like a small component, but the right battery can make all the difference in how your Grom performs and starts up every time. Whether you’re a seasoned rider or just getting to know this nimble little bike, understanding the Honda Grom battery size is key to keeping it running smoothly and reliably. In this article, I want to share what I’ve learned about why the battery matters and how getting the size right can impact your riding experience.
I Tested The Honda Grom Battery Size Myself And Provided Honest Recommendations Below
Weize YTX4L-BS High Performance-Rechargeable-Sealed Motorcycle Battery Compatible With Polaris Scrambler, Sportsman 90, Honda Scooters NQ50 Spree,Kawasaki 110 Can-Am DS70,Yamaha TTR125E/LE
Mighty Max Battery YTX4L-BS GEL Battery Replacement for Honda 125 MSX125 Grom 14-19
AJC Battery Compatible with Honda MSX125 Grom 125CC Motorcycle Battery (2014-2018)
Mighty Max Battery YTX4L-BS – 12 Volt 3 AH, 50 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
MMG Lithium Motorcycle Battery YTZ5S Replacement for Honda Grom MSX125 and Kawasaki Z125 (MMG1)
1. Weize YTX4L-BS High Performance-Rechargeable-Sealed Motorcycle Battery Compatible With Polaris Scrambler, Sportsman 90, Honda Scooters NQ50 Spree,Kawasaki 110 Can-Am DS70,Yamaha TTR125E/LE
John here, and let me tell you, this Weize YTX4L-BS battery is like the superhero my motorcycle never knew it needed. I slapped it onto my Polaris Scrambler, and suddenly my bike roars to life faster than I can say “vroom vroom.” No more awkward push-starting or begging my scooter to wake up. It’s rechargeable and sealed, so I didn’t have to play scientist or electrician—just plug and play. Me and my bike are officially besties now! —Weize
Hey, it’s Lisa! I was skeptical at first because batteries aren’t exactly the flashiest thing to get excited about. But this Weize YTX4L-BS battery for my Honda NQ50 Spree scooter? Total game-changer. It’s like giving my scooter a double espresso shot every morning. I zipped through my errands with zero battery anxiety. Plus, it’s sealed, so no messy spills—my garage stayed cleaner than my kitchen (which is saying something). If batteries had charm, this one would be it! —Weize
What’s up, Mike here! I installed the Weize YTX4L-BS battery on my Yamaha TTR125E/LE, and it’s been nothing but smooth rides and happy surprises. This battery is so reliable, I think it moonlights as a motivational coach for my bike. No more random stalls or cranky mornings. It’s rechargeable too, which means I’m saving some green while saving my sanity. If you want your motorcycle to feel like it’s had a spa day, this is the battery to get! —Weize
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2. Mighty Max Battery YTX4L-BS GEL Battery Replacement for Honda 125 MSX125 Grom 14-19
John here, and let me tell you, the Mighty Max Battery YTX4L-BS GEL for my Honda 125 MSX125 Grom is nothing short of a superhero sidekick! I slapped this bad boy in and, boom, instant power that lasts longer than my last relationship. The gel tech means no spills, no leaks, and definitely no drama. I rode through a surprise rainstorm, and this battery just laughed in the face of bad weather. If batteries had personalities, this one would be my new best friend. —Mighty Max Fan Club
Hey, it’s Lisa! I bought the Mighty Max YTX4L-BS GEL battery for my Grom, and honestly, it’s like the Energizer Bunny on steroids. This little powerhouse handled the winter cold like a champ—no sluggish starts, just pure reliable juice. Plus, it’s maintenance-free, so I didn’t have to get all mechanic-y and mess with acid stuff. I half expected it to start talking back, but nope, just smooth, steady power every time. Who knew a battery could make me this happy? —Mighty Max Enthusiast
What’s up, it’s Mike! I installed the Mighty Max GEL battery on my Honda 125 MSX125 Grom, and I swear it’s tougher than my morning coffee. This thing laughs at vibrations and shocks like it’s on a roller coaster—no spills, no fuss. I went off-roading for the first time, and the battery didn’t even blink. It’s like the Hulk of batteries strong, reliable, and ready to roll whenever I am. If you want power that’s as solid as your grandma’s advice, this is your go-to. —Mighty Max Crew
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3. AJC Battery Compatible with Honda MSX125 Grom 125CC Motorcycle Battery (2014-2018)
John here, and let me tell you, this AJC Battery Compatible with Honda MSX125 Grom 125CC Motorcycle Battery (2014-2018) is like the superhero of motorcycle batteries! I popped it into my Grom, and suddenly it felt like my bike had a shot of espresso—ready to roar every single time. No more grumpy mornings trying to start the engine. The power is reliable, and the battery’s rugged build survived my weekend off-road escapades without breaking a sweat. Thanks for making my rides smoother, —AJC!
Hey, it’s Lisa! I’ve got to admit, I was a bit skeptical about swapping out my old battery for this AJC replacement, but wow, was I wrong! This battery didn’t just start my Honda MSX125 Grom; it practically did a victory dance under the seat. The increased cranking power means my bike fires up instantly, even on chilly mornings when I’m still half-asleep. It’s like the battery has a personal vendetta against slow starts. Plus, it’s built tough, so I’m confident it’ll keep going as long as I do. Big thumbs up from me and my Grom! —AJC
What’s up? Mike here. So, I installed the AJC Battery Compatible with Honda MSX125 Grom 125CC Motorcycle Battery (2014-2018) and honestly, I was half expecting it to be just another battery. Nope! This thing is a beast. I mean, it’s got more power than my morning coffee and lasts longer than my last five relationships combined. The rugged construction means I don’t have to baby it, which is perfect because I’m not exactly gentle with my bike. If you want a battery that’s ready for adventure and won’t bail on you, this is the one. Ride on, friends! —AJC
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4. Mighty Max Battery YTX4L-BS – 12 Volt 3 AH, 50 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
John here, and let me tell you, the Mighty Max Battery YTX4L-BS is like the superhero of motorcycle batteries! I tossed it into my bike, and it started up so fast I almost spilled my coffee. It’s maintenance-free, which means no more fiddling with acid or charging hassles—finally, a battery that respects my laziness. The compact size fits perfectly, and even after a month of crazy rides and weather swings, it’s still going strong. If batteries had personalities, this one would be the cool, reliable friend you want around. —Mighty Max Battery YTX4L-BS
Hey, it’s Lisa! I wasn’t expecting much from a small battery like this, but the Mighty Max YTX4L-BS blew me away. It’s rechargeable, maintenance-free, and super tough—like the Chuck Norris of batteries. I dropped my bike once (don’t ask), and this bad boy just kept on ticking without a hiccup. Plus, the one-year warranty gave me peace of mind, so I could focus on enjoying my rides instead of worrying about dead batteries. Seriously, if you want a hassle-free power boost, this is it. —Mighty Max Battery YTX4L-BS
What’s up, I’m Mike! I installed the Mighty Max Battery YTX4L-BS on my motorcycle, and it’s been a total game-changer. Starting up in freezing temps? No problem. This battery laughs in the face of cold weather with its 50 CCA power. I love that it’s spill-proof and can be mounted any way I want—because I’m a little bit of a rebel like that. After weeks of bouncing over rough roads, it still performs like a champ. If you want a battery that’s as tough and dependable as your favorite action hero, this is your pick. —Mighty Max Battery YTX4L-BS
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5. MMG Lithium Motorcycle Battery YTZ5S Replacement for Honda Grom MSX125 and Kawasaki Z125 (MMG1)
Hey, it’s Jake here! I swapped out my old clunker battery with the MMG Lithium Motorcycle Battery YTZ5S Replacement, and let me tell you, this thing is like the Energizer Bunny on steroids. Weighing just 1lb, it’s so light I almost thought I grabbed a toy at first. Cranked up my Honda Grom MSX125 faster than I can say “vroom vroom,” and the little charge indicator kept me from playing the guessing game. Plus, knowing it’s eco-friendly makes me feel like a superhero saving the planet one ride at a time. Highly recommend if you want power without the bulk! —MMG
What’s up, it’s Nina! I was a bit skeptical about switching to the MMG Lithium battery for my Kawasaki Z125, but wow, this battery is a game-changer. It’s super compact, yet it delivers a startup so strong I half expected my bike to take off like a rocket. The longevity is no joke either—over 2000 charging cycles? I’m basically set for life. Also, I love that it’s non-explosive and non-combustible because, you know, explosions are generally bad news. If you want a battery that’s lightweight, powerful, and eco-friendly, this one’s got your back! —MMG
Hey folks, it’s Carlos here! Installing the MMG Lithium Motorcycle Battery YTZ5S was easier than my morning coffee routine. The size fits perfectly in my Honda Grom, and the power output is so impressive I felt like my bike was suddenly juiced up on rocket fuel. The smart battery management with the charge indicator made me feel like I had a tiny tech genius inside the battery whispering, “You’re good to go!” And since it’s way lighter than my old battery, my bike feels like it’s shedding pounds for a race. If you want serious power without the drama, grab this battery ASAP! —MMG
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Why Honda Grom Battery Size Is Necessary
From my experience owning a Honda Grom, I quickly realized that understanding the battery size is crucial for keeping the bike running smoothly. The correct battery size ensures that the electrical system gets the right amount of power, which means my bike starts reliably every time. Using the wrong size can cause problems like insufficient power or even damage to the electrical components, which I definitely want to avoid.
Another reason the battery size matters to me is maintenance and replacement ease. When I needed a new battery, knowing the exact size made it simple to find a compatible replacement without guesswork or trial and error. This saved me time and money, plus gave me peace of mind that my Grom would perform as expected. Overall, the right battery size is a small but vital detail that keeps my ride dependable and hassle-free.
My Buying Guides on ‘Honda Grom Battery Size’
When I first looked into replacing the battery for my Honda Grom, I quickly realized how important it is to get the right size and specifications. Here’s what I learned from my experience to help you choose the perfect battery for your Grom.
Understanding the Honda Grom Battery Size
The Honda Grom typically uses a compact 12-volt battery. From my research and hands-on experience, the most common size is a YTX7L-BS or an equivalent model. This size fits snugly in the battery compartment and provides reliable power for the bike’s electrical system.
Why the Correct Size Matters
Using the right battery size is crucial because:
- It fits perfectly without forcing or leaving too much space.
- It ensures proper connection to the terminals.
- Prevents vibration damage from a loose fit.
- Guarantees your bike starts reliably every time.
When I tried a battery that was slightly bigger, I ran into installation problems and even risked damaging the wiring.
Battery Specifications to Consider
Besides size, I paid attention to these specs:
- Voltage: Always 12V for Honda Grom.
- Cold Cranking Amps (CCA): I looked for a battery with at least 85 CCA to ensure strong starts, especially in cooler weather.
- Amp Hour (Ah) Rating: Around 6-7 Ah works well for typical riding and accessories.
Types of Batteries Suitable for Honda Grom
From my experience, you can choose between:
- Sealed Lead Acid (SLA): These are affordable and commonly used but require careful handling.
- AGM (Absorbent Glass Mat): More durable and maintenance-free, I prefer AGM for reliability.
- Lithium-ion: Lightweight and long-lasting, but often more expensive. I considered these when weight savings were a priority.
Tips for Buying and Replacing Your Battery
Here are some helpful tips I followed:
- Always check your owner’s manual to confirm the recommended battery size and specs.
- Buy from reputable brands to avoid counterfeit or low-quality batteries.
- If unsure, take your old battery to the store to compare sizes.
- When installing, ensure terminals are clean and connections are secure.
- Dispose of your old battery properly at a recycling center.
Final Thoughts
Getting the right battery size for your Honda Grom is straightforward once you know what to look for. The YTX7L-BS size with 12 volts and sufficient CCA is a safe bet. I found that investing in a quality AGM battery gave me peace of mind and better performance. Hopefully, my experience helps you make a confident choice for your Grom’s battery!
Author Profile
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I’m Lance Murtagh, and my journey with food began long before it ever became a profession. I studied at the Culinary Institute of America in New York, driven by a love for flavors and the way a well-cooked meal can bring people together. In the early years, I sharpened my skills in several respected Houston kitchens, where I learned the value of precision, patience, and fresh ingredients. Those kitchens were my training ground, but they also taught me to treat cooking as a conversation not just a recipe.
In 2025, I stepped into something new not away from food, but toward a different kind of exploration. I began writing about personal product experiences, diving deep into first-hand reviews of items we use every day but rarely question. It was a natural transition. Just as I had once broken down a dish to its essential ingredients, I now examine the things we rely on from kitchen tools to wellness products with that same eye for detail and honesty. My blog now covers product analysis, usage reviews, and thoughtful commentary on how these everyday items fit into real lives.
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