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Mighty Max Battery

Mighty Max Battery ML-U1-CCAHR 12V 320CCA Battery for JohnDeere X320 300CCA Lawn Mower

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, May 12
Order within 1 hour and 58 minutes
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Features

  • ML-U1 is a 12V 320 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery.
  • Dimensions: 7.62 inches x 5.00 inches x 7.00 inches. Polarity: Positive on Left, Negative on Right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • 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

Manufacturer: ‎Mighty Max Battery


Brand: ‎Mighty Max Battery


Model: ‎ML-U1-CCAHR527


Item Weight: ‎14 pounds


Product Dimensions: ‎7.62 x 5 x 7 inches


Item model number: ‎ML-U1-CCAHR527


Batteries: ‎1 12V batteries required.


Manufacturer Part Number: ‎ML-U1-CCAHR527


Amperage: ‎1 Amps


Voltage: ‎12 Volts


Date First Available: January 1, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

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.

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Top Amazon Reviews

    • Has no problems installing or starting
Just changed lawn mower battery and it started up and run great
Reviewed in the United States on February 26, 2026 by Geo Jetson
    • Great value for money
Fit right, handles were a big plus for ease of installation. Surprisingly easy to extend the warranty by scanning the QR Code and again by leaving a review. The battery cranked my lawnmower over with ease and I am pleased with the purchase so far. Waiting to see how long it lasts, more than one season beats the last three batteries. ... show more
Reviewed in the United States on March 17, 2026 by Jerry Sikes
    • Awesome Battery, Easy to install, Great Price for a sealed battery.
Fits JohnDeere 915 B mower. I would say this battery is just as good as a OEM Strongbox Battery. Sealed Battery so no leaking. Easy to install. I received replacement cable bolts which was nice to ensure a good connection. Owned this battery for around a year and no problems starting in spring over the winter. With my usage of this battery my opinion is that this is a great battery at a great price. ... show more
Reviewed in the United States on July 13, 2025 by Adrian Frazier
    • holds charge works well
came in good shape
Reviewed in the United States on March 18, 2026 by Larry Brockhaus
    • Iwas very satisfied!
Great battery good price and fast shipping!
Reviewed in the United States on January 20, 2026 by Jesse Dukes
    • worked great
works great on my Harley Ultra classic
Reviewed in the United States on March 4, 2026 by steve Collins
    • Lawnmower battery
Good battery working well on my generator
Reviewed in the United States on April 2, 2026 by Bobby Joyner
    • It's a nice replacement
The connection was a little different than the last battery, but they included screws and nuts, I was able to make it work. I'm happy with it.
Reviewed in the United States on April 7, 2026 by Al

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