Rated 4.50 out of 5 based on 10 customer ratings
(10 customer reviews)

$169.99

12V 75AH GEL Battery Replaces BCI Group 24M Starting Marine & RV

Availability: In stock

SKU: ML75-12GEL344 Category:
Delivering power when you need it, the Mighty Max ML75-12GEL 12 Volt 75 AH (Maintenance Free) battery.  Requires no addition of water during the life of the battery. The Mighty Max ML75-12 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: 75 AH
Chemistry: GEL

Battery Dimensions:
10.24 in x 6.61 in x 8.27 in
Weight: 51.25 Lbs
Warranty:
1 Year
Volts

12V

Amp Hour

75Ah

Chemistry

Gel

Quantity

1

Length

10.24

Width

6.61

Height

8.27

Weight

51.25 Lbs

Warranty

1 Year

Terminal

Internal Thread

10 reviews for 12V 75AH GEL Battery Replaces BCI Group 24M Starting Marine & RV

  1. Rated 5 out of 5

    Kimberly H Moseley

    fit perfectly just what I needed

  2. Rated 3 out of 5

    Don Eichler

    Had to ask for a return. Batteries are over a 1/2 inch taller than advertised and would not fit my mobility chair. I have had mighty max before and was pleased.

  3. Rated 3 out of 5

    Truman Hensley

    Very heavy for size seems well constructed

  4. Rated 4 out of 5

    Dave Lang

    The very small 6mm terminal connections are a problem for RV use. The connections are the same size as a motorcycle. Otherwise these seem like good AGM batteries. I will update as to how they are holding up.

  5. Rated 5 out of 5

    Nancy Iverson

    Needed 2 heavy duty amp hour batteries for my RV. Pit a larger size and turned this one to get 185 amp hours. Should work great and also has depth for solar charger set up.

  6. Rated 5 out of 5

    DomLazz

    I have a little 14′ inflatable boat with an electric trolling motor. This powers that. And it does a great job. Even after hours on the water, I’ve still got 1/2 a charge or more on the meter. I was worried about the posts being internal based on the photos and some reviews on here, but the battery comes with little screw in posts to make them more like the pop up posts you’re used to on a battery like this. One thing of note is that the battery is surprisingly heavy for its size. Like the battery weighs more than my actual boat. Carrying it from the car to the water is bit of a chore. Must be the gel in the battery that makes it extra heavy. Who knows, but the thing does its job of providing power.

  7. Rated 5 out of 5

    cricket hess

    Perfect fir works great

  8. Rated 5 out of 5

    Sheryl

    I use this battery to power my trolling motor which is a 42 lb. thrust. I am pleased with the performance so far. I am able to troll for several hours.

  9. Rated 5 out of 5

    V Lombardo

    I use it for a trolling motor on a Kayak. The lighter weight is perfect for a kayak user like me. This is my 2nd one. The first one lasted 5 years. This is my battery of choice.

  10. Rated 5 out of 5

    Richard J. Grant

    Great addition to solar 20 volt tool battery charging station.

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Excellent
Mighty Max Battery
Based on 3474 reviews
Arrived quickly. Even got a sticker with it.
Solid looking battery, came well packaged. Have used their battery before for my lawnmower and now looking forward to see how it lasts in my snowmobile.
I can't believe it less than 48hrs since I ordered from Walmart and it's in the machine. What more can I say except great price.
Thanks Larry
Item as described and perfect fit and arrived on time
Battery arrived in a good shape package strait to my door steps
Arrived just in time to power my generator here in the cold Maine winters. Excellent service!
Arrived quickly from WALMART.COM. Perfect size and proper placement in my generator. Installation was easy. Generator fired right up. Battery came fully charged.
New battery. Ready for cold weather!
So far these Might Max batteries are good but it’s only the first day and they were on charge for 12 hrs. I’ll have to come back and do an update at some point in time. Ordered them on Amazon and got them the next day. I was encouraged by Mighty Max to make this google review and post pictures to extend my warranty for 3 months but there is no way to post pictures 🤣🤣🤣 It’s been a few months and I was able to go back and edit, so here is a video I made, the rest of the photos I have deleted. Batteries are still going strong. Update 12-11-2025
They arrived within 2 days of ordering them packaging was really good I haven't put them in my MX350 yet I hit them with my multi meter fresh out of the box and got 12.4v on both batteries so that is good