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Mighty Max Battery

Mighty Max Battery 12V 55Ah Power Boat Pontoon Electric Trolling Motor Deep Cycle Battery

  • Based on 1,660 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Mighty Max Battery
Arrives Oct 1 – Oct 3
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Features

  • ML55-12 SLA is a 12V 55AH Sealed Lead Acid (SLA) rechargeable maintenance free battery - UL Certified
  • Dimensions: 9.06 inches x 5.43 inches x 8.98 inches. 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

Brand: Mighty Max Battery


Size: 1 Pack


Battery Cell Composition: Lead Acid


Product Dimensions: 9.06"D x 5.43"W x 8.98"H


Automotive Fit Type: Universal Fit


Manufacturer: Mighty Max Battery


Product Dimensions: 9.06 x 5.43 x 8.98 inches


Item Weight: 36.7 pounds


Item model number: ML55-121911139


Batteries: 1 12V batteries required. (included)


Date First Available: January 1, 2010


Manufacturer: Mighty Max Battery


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 1 – Oct 3

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
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  • 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

    • Great Battery!
Have used this battery multiple times this summer. It is great. It works flawlessly with my 46lb trolling motor. After being out on the water trolling for 2-3 hours it still has nearly a full charge. I had good luck with the Might Max 35AH battery but this 55AH is so worth the extra $40.
Reviewed in the United States on July 18, 2022 by zebraland
    • Works great, just charge it up
Batteries just fine. Don’t take it right out of the box and use it or you’re gonna be disappointed. You have to put it on a trickle charge until it’s 100%. And I would definitely recommend their recommendation of not taking it below 25%. This is not off the cuff advice, I’m 58 and my daddy was a mechanic so I know the drill. JTP ... show more
Reviewed in the United States on June 23, 2023 by JTP
    • Battery Good, needed hardware nuts
Battery fine, arrived in great condition, charge was good, and earlier than expected. Hardware included was two screws + washers BUT NO NUTS. Ended up buying wing nuts at hardware store.
Reviewed in the United States on June 26, 2023 by Eric Toysa
    • Powah
This baby is chock full of power and only cost a hundred paltry American bucks, none of which made their way into the hands of the poor slaves in the third world where the minerals to manufacture it were mined....by children. Kids have sneakers to make, and minerals to mine, we use fossil fuels to do both, save the children. ... show more
Reviewed in the United States on April 2, 2025 by Kawliga77
    • Engine battery
Happy with purchase
Reviewed in the United States on August 10, 2025 by Pwilt
    • La recomiendo
Excelente producto, duradera y de muy buena calidad, lo utilizo en un bote con motor eléctrico, y trabaja 1.45 a toda máquina, se recupera y no pierde la carga por meses.
Reviewed in the United States on July 11, 2025 by Eulises Ulloa Clero
    • Powered my 36lb Trolling Motor for Hours
The battery came nearly fully charged (there was some discharge from being off charger, but nothing significant). It powered my 36lb thrust trolling motor roughly 4 hours at full power - pushing a 13' fully loaded fishing kayak with 15-20mph winds, and 4' - 5' waves. I wish my adult diapers worked as good as this power cube. The battery box says that there is still over half a charge left. That's pretty impressive for the price. I'd buy it again and suggest it to a friend. ... show more
Reviewed in the United States on October 19, 2023 by Roger Branson
    • Solid battery
Purchased for my trolling motor
Reviewed in the United States on February 23, 2025 by Kindle Customer

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