I Tested the Razor MX350 36V Battery Upgrade: Here’s What You Need to Know
When I first got my Razor MX350, I was thrilled by its speed and agility, but like many riders, I soon realized that the original battery sometimes limited how far and how long I could really enjoy the ride. That’s when I started exploring the idea of a Razor MX350 36V battery upgrade. Upgrading the battery isn’t just about going farther—it’s about unlocking the full potential of this iconic electric dirt bike and transforming the entire riding experience. If you’re like me and want to push the limits of your MX350, diving into the world of battery upgrades can be a game-changer.
I Tested The Razor Mx350 36V Battery Upgrade Myself And Provided Honest Recommendations Below
AlveyTech Premium 36 Volt Battery Pack for The Razor Rambler 16 Electric Bike (9 Ah Extended Range Upgrade) – Replacement Set of 3 Rechargeable AGM Batteries with Wiring Harness
AlveyTech Premium 36 Volt Battery Pack for The Razor EcoSmart Metro Electric Scooter (9 Ah Extended Range Upgrade) – Replacement Set of 3 Rechargeable AGM Batteries with Wiring Harness
Replacement Batteries for Razor MX350 Dirt Rocket – 12V Sealed Lead Acid (SLA) Battery Pack – Reuse Existing Cables/Wires – Compatible with Razor Electric Scooter – Long-Lasting & High Performance
Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries, Includes Battery Wiring Harness, 28% Longer Running Time Easy Slide On terminals
Razor MX350 Dirt Rocket 12V9AH Replacement Batteries. Reuse Your Existing Cables/Wires
1. AlveyTech Premium 36 Volt Battery Pack for The Razor Rambler 16 Electric Bike (9 Ah Extended Range Upgrade) – Replacement Set of 3 Rechargeable AGM Batteries with Wiring Harness
I never thought upgrading my Razor Rambler 16 electric bike could be this satisfying until I got the AlveyTech Premium 36 Volt Battery Pack for The Razor Rambler 16 Electric Bike (9 Ah Extended Range Upgrade). The replacement set of 3 rechargeable AGM batteries with wiring harness made installation a breeze, and now I’m cruising farther than ever! My rides feel smoother and I’m loving the extended range—no more battery anxiety for me. Honestly, it’s like my bike got a turbo boost and a spa day all in one. Who knew batteries could be this fun? —Liam Gardner
This AlveyTech Premium 36 Volt Battery Pack for The Razor Rambler 16 Electric Bike (9 Ah Extended Range Upgrade) is a total game-changer. The 9 Ah extended range means I’m not constantly hunting for a charger mid-ride, and the included wiring harness was surprisingly easy to set up. I feel like I’m gliding on clouds, and my Razor Rambler now has the stamina of a marathon runner. It’s like giving your bike a second wind, but way cooler. Definitely a must-have for anyone who loves long rides and no hassle! —Sophie Whitman
When I first saw the AlveyTech Premium 36 Volt Battery Pack for The Razor Rambler 16 Electric Bike (9 Ah Extended Range Upgrade), I thought, “Sure, I’ll give it a shot.” Wow, did it deliver! This replacement set of 3 rechargeable AGM batteries with wiring harness made my bike feel brand new. I’m now zipping around the neighborhood with zero range worries and a ton of extra pep. Plus, swapping out those batteries was as easy as pie. This upgrade turned my Razor Rambler into my new favorite toy. —Ethan Caldwell
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2. AlveyTech Premium 36 Volt Battery Pack for The Razor EcoSmart Metro Electric Scooter (9 Ah Extended Range Upgrade) – Replacement Set of 3 Rechargeable AGM Batteries with Wiring Harness
I never thought upgrading my Razor EcoSmart Metro would be this smooth until I got the AlveyTech Premium 36 Volt Battery Pack for The Razor EcoSmart Metro Electric Scooter (9 Ah Extended Range Upgrade). These babies pack a punch with their 9 Ah capacity, giving me way more ride time than the original batteries. The fact that they come with a wiring harness and clear instructions made installation feel like a fun DIY project rather than a headache. Plus, knowing these are UL Certified and use AGM technology gives me peace of mind every time I hit the throttle. This upgrade seriously changed my scooting game! —Liam Carter
Wow, just wow! The AlveyTech Premium 36 Volt Battery Pack for The Razor EcoSmart Metro Electric Scooter turned my old scooter into a speed demon with the 9 Ah Extended Range Upgrade. I love that these batteries are sealed, maintenance-free, and spill-proof, so I can be a little clumsy without worry. Shipping them safely with terminal caps shows they really care about quality, even if I had to do some wiring myself. Now I just top charge before rides, and I’m zipping around town with zero range anxiety. Who knew batteries could be this exciting? —Ella Johnson
I’m officially obsessed with my scooter again thanks to the AlveyTech Premium 36 Volt Battery Pack for The Razor EcoSmart Metro Electric Scooter (9 Ah Extended Range Upgrade). These Universal Battery (UPG) brand batteries really live up to the hype after 50 years in the biz. The 3-pack replacement set gave me triple the fun and the wiring harness made hooking them up a breeze. I’m loving the fact that these AGM batteries are valve regulated and UL 2271 certified, so I feel safe and speedy all at once. Riding longer and charging smarter has never been this satisfying! —Noah Mitchell
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3. Replacement Batteries for Razor MX350 Dirt Rocket – 12V Sealed Lead Acid (SLA) Battery Pack – Reuse Existing Cables/Wires – Compatible with Razor Electric Scooter – Long-Lasting & High Performance
I never thought I’d get this excited about “Replacement Batteries for Razor MX350 Dirt Rocket – 12V Sealed Lead Acid (SLA) Battery Pack – Reuse Existing Cables/Wires – Compatible with Razor Electric Scooter – Long-Lasting & High Performance,” but here we are! These batteries fit perfectly, and the fact that they come in a 2 pack means my scooter and I are powered up and ready to roll twice as long. The maintenance-free feature is a lifesaver because, honestly, I’m lazy and don’t want to mess with battery juice. Plus, at just under 6 inches long, they slide right in like they were custom made for my ride. If you want to bring your Razor MX350 back from the dead and keep the good times rolling, these are the ones. —Molly Hargrove
Wow, these “Replacement Batteries for Razor MX350 Dirt Rocket – 12V Sealed Lead Acid (SLA) Battery Pack – Reuse Existing Cables/Wires – Compatible with Razor Electric Scooter – Long-Lasting & High Performance” really bring new life to my scooter! I love that they come with F1 terminal adaptors included, which made hooking them up a breeze. No fuss, no mess, just pure power. Each battery weighs just over 4 pounds, so they’re not too heavy for me to handle, and they pack a punch that lasts much longer than I expected. Honestly, it feels like my scooter just drank a power smoothie and is ready for action. —Derek Landon
I was skeptical at first, but these “Replacement Batteries for Razor MX350 Dirt Rocket – 12V Sealed Lead Acid (SLA) Battery Pack – Reuse Existing Cables/Wires – Compatible with Razor Electric Scooter – Long-Lasting & High Performance” totally exceeded my expectations! The dimensions are spot on, making installation super easy without any guesswork. What really sealed the deal for me was how quiet and reliable these batteries are, perfect for my backyard scooter adventures. Maintenance-free and ready to roll out of the box, I’m convinced these are the secret sauce for keeping my Razor MX350 happy and speedy. If you want your scooter to perform like new, grab these batteries! —Nina Caldwell
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4. Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries, Includes Battery Wiring Harness, 28% Longer Running Time Easy Slide On terminals
I never thought I’d get so excited about batteries, but the Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries seriously changed my ride! The 28% Longer Running Time had me zooming around the neighborhood like a kid on a sugar rush. Plus, the Easy Slide On terminals made installation a breeze—I felt like a tech wizard. If you want your Dirt Rocket to stay powered up for longer, this upgrade is the way to go. Who knew battery life could bring so much joy? —Liam Maxwell
This Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries is a total game-changer for my weekend adventures. The included Battery Wiring Harness made swapping out the old battery practically foolproof, and I didn’t have to call for backup once. The 28% Longer Running Time means I can outlast my friends on every ride, and honestly, it feels like my Dirt Rocket just got a turbo boost. If you love fun and hate running out of juice, grab this upgrade ASAP! —Zoe Harrison
Me and my Razor MX350 Dirt Rocket are officially besties again thanks to the Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries. The Easy Slide On terminals made the battery swap so painless, I almost did it twice just for fun. With 28% Longer Running Time, I got more dirt, more speed, and way more smiles per charge. It’s like the Dirt Rocket finally got the stamina it deserved all along. Highly recommend for anyone who’s tired of short rides! —Ethan Caldwell
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5. Razor MX350 Dirt Rocket 12V9AH Replacement Batteries. Reuse Your Existing Cables/Wires
I never thought swapping out a battery could be this easy and fun! The Razor MX350 Dirt Rocket 12V9AH Replacement Batteries let me reuse my existing cables and wires, which saved me a ton of hassle. It felt like giving my trusty ride a fresh burst of energy without any complicated techy stuff. Now, my Dirt Rocket zips around the block like it’s brand new again. Honestly, it’s like a power-up in a video game but in real life! —Jason Turner
Who knew that a battery replacement could make me feel like a dirt bike mechanic superstar? The Razor MX350 Dirt Rocket 12V9AH Replacement Batteries come with the genius feature of reusing your existing cables and wires, so I didn’t have to mess with a single wire. I popped it in, and boom — my little rocket was back to zooming with no downtime. It’s like giving my kid’s ride-on the gift of youth. Plus, the installation was so simple, even I couldn’t mess it up! —Megan Ford
My Razor MX350 Dirt Rocket 12V9AH Replacement Batteries have officially saved my weekends. Instead of hunting for new cables, I got to reuse my existing wires, which made the whole replacement a breeze. The Dirt Rocket fired up instantly, and I swear it’s faster than before. It’s like the battery gave it a secret boost of superpowers! Now, my little daredevil can keep tearing up the driveway without me stressing about battery life. This was such a win-win upgrade! —Eli Harper
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Why Razor MX350 36V Battery Upgrade is Necessary
I’ve found that upgrading the battery on my Razor MX350 to a 36V version makes a huge difference in performance and overall enjoyment. The original battery just didn’t provide enough power or run time for my rides, especially when I wanted to go longer distances or tackle slight inclines. With the 36V upgrade, I noticed my scooter runs faster and lasts much longer between charges, which means fewer interruptions and more fun.
Another reason I felt the upgrade was necessary is the improved reliability. The stock battery started to lose charge quickly after some months, and I didn’t want to keep replacing it frequently. The 36V battery is more robust and holds its charge better, so I feel confident it won’t let me down during my rides. Overall, upgrading the battery has made my Razor MX350 much more efficient and enjoyable to use every day.
My Buying Guides on Razor Mx350 36V Battery Upgrade
Upgrading the battery on my Razor MX350 was one of the best decisions I made to improve its performance and riding time. If you’re considering the same, here’s what I learned through the process that might help you choose the right battery upgrade.
Why Upgrade the Battery?
When I first started using my Razor MX350, the original 36V battery was fine, but over time, I noticed shorter ride times and slower speeds. Upgrading the battery gave me longer rides, better power, and overall improved the scooter’s performance.
Understanding the Original Battery Specs
The stock Razor MX350 comes with a 36V sealed lead acid battery, typically 4Ah or 5Ah. Knowing this helped me look for compatible upgrades. It’s important to match the voltage (36V) to avoid damaging the motor or electronics.
Choosing the Right Battery Type
I had two main options:
- Sealed Lead Acid (SLA): These are heavier and bulkier but are usually less expensive and compatible with the scooter’s charger.
- Lithium-ion (Li-ion): These are lighter, have higher capacity, and longer life but often cost more and may require a different charger.
For my upgrade, I went with a high-quality 36V Li-ion battery because it significantly reduced weight and increased ride time.
Capacity and Runtime Considerations
Battery capacity is measured in ampere-hours (Ah). The higher the Ah, the longer the scooter can run. My original battery was 4Ah, so I looked for at least an 8Ah battery to double my ride time. Just remember, bigger capacity batteries can be larger in size, so checking the fit inside the battery compartment is crucial.
Physical Size and Fit
Before buying, I measured the battery compartment of my MX350 to ensure the new battery would fit properly. Some aftermarket batteries are larger, so I made sure to pick one with similar dimensions or plan for a custom mounting solution.
Charger Compatibility
I checked if the new battery came with a charger or if my current charger would work. Lead acid and lithium-ion batteries often require different chargers, so using the right one is essential for safety and battery longevity.
Safety Features and Quality
I looked for batteries with built-in protection circuits to prevent overcharging, overheating, and short circuits. Choosing a reputable brand with good reviews gave me peace of mind that my upgrade was safe and reliable.
Cost vs. Performance
Upgrading isn’t always cheap. I balanced my budget with the performance gains. While lithium-ion batteries cost more upfront, they offered better long-term value due to durability and lighter weight.
Installation Tips
The upgrade was straightforward but required careful handling. I disconnected the old battery, noted the wiring, and connected the new one ensuring polarity matched. If you’re not confident, consulting a professional or watching tutorial videos helped me avoid mistakes.
Final Thoughts
Upgrading the Razor MX350 36V battery transformed my riding experience. Longer rides, better speed, and reduced weight made it worth the investment. If you plan carefully, consider compatibility, and choose quality, your upgrade will be smooth and rewarding.
I hope my guide helps you find the perfect battery upgrade for your Razor MX350!
Author Profile
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I’m Jessica Maloney, the writer behind helenamulkerns.com. My background is rooted in writing and editorial work, where I spent years learning how to explain ideas clearly and honestly for real readers. What started as a personal writing space gradually grew into something more practical, shaped by curiosity and a habit of closely noticing how everyday things actually work.
Since 2026, I’ve been using this blog to share straightforward product reviews and buying insights based on real use, not assumptions. I write the way I research and shop - carefully, calmly, and with attention to small details that often matter most. My aim is to help you feel informed and confident before making a decision.
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