Search  for anything...

Mighty Max Battery 12V 8Ah Battery for Razor MX350, MX400 Electric Dirt Bike - 2 Pack

  • Based on 428 reviews
Condition: New
Checking for the best price...
$38.99 Why this price?
Save $2.00 was $40.99

Buy Now, Pay Later


As low as $9 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.


Availability: In Stock.
Fulfilled by Mighty Max Battery

Arrives May 24 – May 28
Order within 5 hours and 7 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • ML8-12 SLA is a 12V 8AH Sealed Lead Acid (SLA) rechargeable maintenance free battery, Pack of 2 - UL Certified
  • Dimensions: 5.94 inches x 2.56 inches x 4.02 inches. Terminal: F1. Listing is for the Battery only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures and long service life.
  • 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

Brand: Mighty Max Battery


Vehicle Service Type: Scooter


Size: 2 Pack


Voltage: 12 Volts


Battery Cell Composition: Lead Acid


Item Weight: 10 Pounds


Product Dimensions: 5.94"D x 2.56"W x 4.02"H


Terminal: F1 Terminal


Battery Capacity: 8 Amp Hours


Automotive Fit Type: Universal Fit


Brand: ‎Mighty Max Battery


Size: ‎2 Pack


Product Dimensions: ‎5.94"D x 2.56"W x 4.02"H


Terminal: ‎F1 Terminal


Battery Capacity: ‎8 Amp Hours


Automotive Fit Type: ‎Universal Fit


Manufacturer: ‎Mighty Max Battery


UPC: ‎730052457537


Item Package Dimensions L x W x H: ‎5.94 x 4.02 x 2.56 inches


Package Weight: ‎10 Pounds


Item Dimensions LxWxH: ‎5.94 x 2.56 x 4.02 inches


Brand Name: ‎Mighty Max Battery


Warranty Description: ‎1 Year Manufacturers Warranty


Model Name: ‎ML8-12MP22834


Color: ‎Black


Number of Items: ‎2


Part Number: ‎ML8-12MP2


Included Components: ‎Battery


Date First Available: January 1, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 24 – May 28

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • So far works great in kids Razor MX350
I really wish I took pictures during the process of switching out the batteries. It was def a pain in the butt but I did it. The hardest part was u screwing all the screws. THE BATTERY DOES NOT COME WITH THE WIRES. I didn’t realize I had to buy the wires to replace as well so I had to wait for that to come in after I took the whole battery compartment off. But half the work was done already for next time. The battery fit perfect and now my son’s Razor runs perfectly. I just finished the project tonight so I can’t say how long the battery lasts but the Razor was completely dead when I got this as a hand me down. I swapped out for a new battery and wires and now it runs. I thought the price was good but then realized I needed to buy the waited too but still for both, it wasn’t bad. Cheaper than a new Razor. My son is gonna be so happy when he sees it. ... show more
Reviewed in the United States on January 12, 2025 by Georgia

  • Good deal
Great price excellent product
Reviewed in the United States on January 11, 2026 by joseph dejoinville

  • Good product for the money. You will need connectors.
Great product. I installed these in a few minutes. The connectors worked fine. The motorcycle is running great. I also paired this with a new motor which also helped a lot.
Reviewed in the United States on July 20, 2025 by Fletcher

  • Work great!
Got it installed in our go kart to replace and work great! Holds charge much longer than the previous ones.
Reviewed in the United States on April 4, 2024 by howie

  • Bueno
Bueno
Reviewed in the United States on August 21, 2025 by Berenice Romo aguilar

  • Super
Super. I was I needed
Reviewed in the United States on May 22, 2025 by Denis Altamirano

  • Solid Replacement
Works perfectly to replace th battery in my son's Razor dirtbike.
Reviewed in the United States on October 15, 2024 by Jeremy Kelzer

  • This product SUCKS!!
Horrible product. Install - had to change out the connectors. Not a bad thing if the product would hold a charge for more than 2 minutes! The install is difficult due to how the electric bike is made to replace and hold the batteries but to then add in that you have to change the connectors out to something else than what the manufacturer made and then it DOESN'T hold a charge - less than 1 star. Batteries worked great for first few days. Now I charge for couple hours and all we get is maybe two minutes of use. Longevity - think of the most worthless thing you can dream up - and then this batteries longevity is worst than that. Value - well if it only lasts 30 seconds after being charged. You be the Judge! ... show more
Reviewed in the United States on July 1, 2023 by DW8494

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...