Rated 4.74 out of 5 based on 19 customer ratings
(19 customer reviews)

$44.99

ML18-12 GEL – 12 Volt 18 AH, GEL Type, Internal Thread (INT) Terminal, Rechargeable SLA AGM Battery

SKU: ML18-12GEL Category: Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Thumbnail Short Description Price Add to Cart Button
1 Pack $ 44.99
2 Pack $ 85.99
4 Pack $ 169.99
Delivering power when you need it, the Mighty Max ML18-12GEL 12 Volt 18 AH (Maintenance Free) battery. Requires no addition of water during the life of the battery. The Mighty Max ML18-12 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: 18 AH
Chemistry: GEL
Terminal: Internal Thread
Battery Dimensions:
7.00 in x 2.87 in x 6.50 in
Weight: 11.90 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack, 4 Pack

19 reviews for ML18-12 GEL – 12 Volt 18 AH, GEL Type, Internal Thread (INT) Terminal, Rechargeable SLA AGM Battery

  1. Rated 5 out of 5

    Calvin (verified owner)

  2. Rated 3 out of 5

    Michael (verified owner)

  3. Rated 5 out of 5

    Virginia Van Breemen (verified owner)

    Thank you

  4. Rated 5 out of 5

    hubert L Mccall (verified owner)

  5. Rated 5 out of 5

    Rio A. (verified owner)

    chain 3 of this batteries and all looking great!

  6. Rated 5 out of 5

    Anonymous (verified owner)

    So far so good, great batteries, free shipping, fast delivery time and with professional customer service. Will buy from MightyMax website again.
    I Highly recommend purchasing directly from the manufacturer website rather than elsewhere (warranty, reliability, authenticity…).
    By the way, I had a very disappointing experiences when I did purchase this brand from marketplaces like Amazon and eBay.

  7. Rated 5 out of 5

    me223

    Seems to be good, unfortunately fence charger was planning to use with it is junk!!

  8. Rated 5 out of 5

    Sonny

    Great product and good service

  9. Rated 5 out of 5

    scott s

    Using this battery to run 2 fish finders and lights on my kayak. I’ve been out for 7 to 10 hrs and lasts all day with plenty left over. I ran it 3 days wo charging to see how long it would last. It hasn’t died on me yet. For the price and size its great for led lights and fish finder.

  10. Rated 5 out of 5

    jace sebastian espy

    Looked nice and has worked so far. Can’t tell much more but it was charged when it arrived and is now providing back up power to an automatic transfer switch overseas.

  11. Rated 5 out of 5

    Jim Hanus

    Takes a charge well, and seems to have it’s rated capacity. Only had it a few months, so no idea on how long it will last.

  12. Rated 5 out of 5

    Roger

    A very good battery.

  13. Rated 5 out of 5

    Roger Ramey

    A very good battery.

  14. Rated 5 out of 5

    Manuel E.

    Affordable and appears to be a quality product

  15. Rated 4 out of 5

    John Henry

    Good packaging and a direct replacement. I dont care for the color blue though

  16. Rated 4 out of 5

    John Henry

    Good packaging and a direct replacement. I dont care for the color blue though

  17. Rated 5 out of 5

    Robert L Crawford

    Bought this battery for an automatic clay pigeon thrower. It works great. Used it for about 3 hours straight with no problem. I am hoping the gel battery allows for a longer life. I keep it on a battery tender jr.

  18. Rated 5 out of 5

    Robert L Crawford

    Bought this battery for an automatic clay pigeon thrower. It works great. Used it for about 3 hours straight with no problem. I am hoping the gel battery allows for a longer life. I keep it on a battery tender jr.

  19. Rated 4 out of 5

    Duane Condit

    These Mighty Max batteries are not an OEM replacement for the original Solaris batteries. The original batteries had large posts which dropped into clips in the lawnmower battery compartment, making the original batteries easily removeable. The Mighty Max batteries have screw posts, which means they will not work with the original battery clips. I had to remove the battery clips and replace them with a wiring harness. While this was not especially difficult, it means the batteries are no longer removeable. This is OK, since the Solaris charger can charge the batteries while they are still in the lawnmower. Even though it took some work to convert the lawnmower to the new Mighty Max batteries, I have to say the new batteries are a big improvement over the originals. They charge quickly, and the mower has not had such power since it was new. I would certainly buy the Mighty Max batteries again as replacements for my self-powered Solaris lawnmower.

Only logged in customers who have purchased this product may leave a review.

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