Mighty Max Battery 12V 55Ah Power Boat Pontoon Electric Trolling Motor Deep Cycle Battery
Condition: New
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Availability:
In Stock.
Arrives
Nov 15 – Nov 17
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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:
Nov 15 – Nov 17
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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
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
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Reviewed in the United States on June 23, 2023 by JTP
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.
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Reviewed in the United States on October 19, 2023 by Roger Branson
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
Happy with purchase
Reviewed in the United States on August 10, 2025 by Pwilt
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
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.
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Reviewed in the United States on April 2, 2025 by Kawliga77
I bought this for my kayak for which I have built a transom to add a trolling motor (I will often go out for a long 3-4 hours day and like to be able to add some motor power). The motor is a Newport electric motor with 35 lb. thrust capability. I have used that motor at highest speeds for about 1 1/2 hours often pulling a tethered kayak and the battery has only dropped from 13.2 to 12. 2 volts. (they recommend to not go below 11 volts) However, it is heavy!! At first I had it placed behind me, but between my weight and adding battery weight to the back in addition to the weight of the motor, I only had about 1 inch leeway before the kayak would have gone under. I now place the battery in front of me and it fits perfectly between my legs as they are spread to the footholds in the kayak.
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Reviewed in the United States on April 20, 2020 by Gordon R. Thomas