Rated 4.95 out of 5 based on 19 customer ratings
(19 customer reviews)

$139.99

ML55-12 GEL -12 Volt 55 AH, GEL Type, Internal Thread (INT) Terminal, Rechargeable SLA AGM Battery

Availability: In stock

SKU: ML55-12GEL Category: Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Delivering power when you need it, the Mighty Max ML55-12GEL 12 Volt 55 AH (Maintenance Free) battery. Requires no addition of water during the life of the battery. The Mighty Max ML55-12 GEL is a TRUE DEEP CYCLE battery that can be mounted in any position, requires no maintenance. When a Gel Cell battery is charged, no hazardous fumes escape the battery case, gases are processed within the battery itself.
Mighty Max GEL batteries are utilized in a wide variety of applications including; Consumer Electronics, Electric Vehicles, Engine Starters, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security and  more
Specifications: 
Voltage: 12 Volt
Amperage: 55 AH
Chemistry: GEL
Battery Dimensions: 
9.02 in x 5.43 in x 9.13 in
Weight: 38.58 Lbs
Warranty
1 Year
Volts

12V

Quantity

1

Width

5.43

Height

9.13

Chemistry

Gel

Length

9.02

Warranty

1 Year

Weight

38.58 Lbs

Amp Hour

55Ah

Terminal

Internal Thread

19 reviews for ML55-12 GEL -12 Volt 55 AH, GEL Type, Internal Thread (INT) Terminal, Rechargeable SLA AGM Battery

  1. Rated 5 out of 5

    Scott R. (verified owner)

    Fast shipping, expert packing and awesome product. Happy Customer here.

  2. Rated 5 out of 5

    James C. (verified owner)

    I like Mighty Max compared to other brands.

  3. Rated 5 out of 5

    Ronald M. (verified owner)

    Nice battery for my generator. Expedited shipping was cheap and fast ! Customer Service is GREAT.

  4. Rated 5 out of 5

    Philip Stanghetta (verified owner)

  5. Rated 5 out of 5

    contrell

    Lasted longer than the time stated!

  6. Rated 5 out of 5

    Janet Howard-Ducsay

    excellent addition to lake fishing

  7. Rated 5 out of 5

    Frank Rumsey

    It is far too early to tell but so far it is holding the charge exceIt is far too early to tell but so far it is holding the charge excellently so if they keep that up I will be super satisfied.llently so if they keep that up I will be super satisfied.

  8. Rated 5 out of 5

    Troy Emmett

    Batteries are good, good price, easy to install. Only had for about 2 1/2 months so really not sure of its longevity. Just gave them the benefit of the doubt. Hoping it lasts 2 years.

  9. Rated 5 out of 5

    TCHLDER

    We will be ordering more soon, they are great for powering our trolling motors.

  10. Rated 5 out of 5

    mrjones32

    Everything!!! No dislikes!!

  11. Rated 5 out of 5

    BroomStickNinja

    Grade A quality batteries from a Grade A quality store. I had an issue with my order, accidentally ordered to the wrong address, and they were willing to get them re-directed *at my cost* to the right destination. They were super helpful over the phone & it was a pleasure working with them. The product itself arrived exactly as described, installed easily and has been a great replacement to the originals

  12. Rated 5 out of 5

    Web Customer

    Works great with the 55lbs thrust trolling motor I have. Can get about 4 hours out of a single charge going 100 percent the entire time.

  13. Rated 5 out of 5

    DR

    Holds charge. Very happy with this purchase.

  14. Rated 4 out of 5

    DAK

    Used for portable power

  15. Rated 5 out of 5

    Patrick J. Oleary

    battery is as advertised, shipped fast, came with cable mounting bolts, and seems to work fine. i have this hooked up to a solar charge controller and it seems to charge and discharge fine. running an inverter off it to 120v & it works fine.

  16. Rated 5 out of 5

    derekcentrico

    It worked as needed

  17. Rated 5 out of 5

    Amber Greymark

    LOVE THIS BATTERY.

  18. Rated 5 out of 5

    Amber Greymark

    LOVE THIS BATTERY.

  19. Rated 5 out of 5

    bruce a. rockwell

    great

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Excellent
Mighty Max Battery
Based on 3513 reviews
Awesome pricing and shipping!!👍👍
I would recommend this battery to anyone looking for a great battery at a reasonable price. We had this exact same battery in our KIA we brought new at the end of 2018, & we are just now replacing it! We purchased it on December 18, & received it today the
20th of December
I would recommend this battery to anyone looking for a great battery at a reasonable price.We had this exact same battery in our KIA we brought new at the end of 2018, & we are just now replacing it! We purchased it on December 18, & received it today the 20th of December
Shipped fast and easy. Perfect fit. Thank you Mighty Max.
Nice replacement, same size, nicely packaged and fast delivery
Purchased two batteries ML9-12 SLA for a Cyberpower unit CP1500AVRLCD to replace old/exhausted OEM batts. The new ones were easy to replace and are a direct replacement and perfect fit of the OEM batts
product showed up in two days and they were fine condition.
I ordered a battery through Walmart online. My mother ordered it for me. It came in 3 days. It started right up. It made my 150 cc moped run so smooth.
Ordered via Amazon on 12/3/2025; arrived in 3 days.
Easy installation and charging as I am typing. Replacing in unit as shown.