Rated 5.00 out of 5 based on 6 customer ratings
(6 customer reviews)

$39.99

12v 18AH Battery for Mighty Mule FM350 Automatic Gate Opener

SKU: ML18-12211211 Category:
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$ 39.99
$ 79.99
$ 159.99
Delivering power when you need it, the Mighty Max ML18-12 12 Volt 18 AH uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.
The ML18-12 is an Absorbent Glass Mat (AGM) technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models.
Mighty Max SLA 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: SLA, AGM
Terminal: Nut and Bolt (NB)
Battery Dimensions:
7.12 in x 3.00 in x 6.50 in
Weight: 11.90 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack, 4 Pack

Volts

12V

Amp Hour

18Ah

Chemistry

SLA / AGM

Terminal

Nut and Bolt

Quantity

1

Length

7.12

Width

3.00

Height

6.50

Weight

11.90 Lbs

Warranty

1 Year

6 reviews for 12v 18AH Battery for Mighty Mule FM350 Automatic Gate Opener

  1. Rated 5 out of 5

    J n L

    I have had the 12v 18ah battery that I use for the FM350 gate opener for about 5 years. I have had absolutely no problems with it at all. We get a lot of rain, a lot of humidity and it basically sits in mud for a lot of the year. It’s small for the battery box it is in. I have the conduit running to the house (not solar). One year I found a half inch of rain/water in the bottom of the box but no problems even then. Now the gate opener is another story. We have a 14 foot aluminum gate (super light!) and for 4+ years we have had to give the gate a little tiny lift virtually every single time we open the push gate. It closes fine. The opener’s longevity considering how much the gate slants has been really good, but even though we followed all the installation instructions AND recommendations to the PRECISE, capital, underlined, bolded T!!!, we can’t get the gate to line up with the locking bracket well enough to open every time. The wood beams are in cement so that’s going to be an awful job to replace the beam(s) one day and for how long will it last the next time. so sad. 🙁

  2. Rated 5 out of 5

    Lisa Poleno

    Works great!

  3. Rated 5 out of 5

    Paul G.

    So far so good.

  4. Rated 5 out of 5

    B. Harold

    as advertised and shipped promptly.

  5. Rated 5 out of 5

    Jerry Woods

    works like it suppose to

  6. Rated 5 out of 5

    Monty L. illiams

    very good product, and was priced competitively

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

Excellent
Mighty Max Battery
Based on 4138 reviews
Needed a new battery to start off the mowing season! Thanks Mighty Max!
Arrived just fine. Installed into my Chamberlain door opener. Fit just fine. Have yet to see if it works.
Great choice👍🏻
Purchased a MightyMax YB9A-A battery for a Kipor Sinemaster KGE 3000Yi digital generator. The battery fit perfectly and started the generator with no issues. The price was very reaonable and everything works great!
Can't speak for longevity, but battery was delivered at the promised voltage and CCA. For the price it's worth the try — will update my review if any premature failures occur.
The ML9-12 NB battery was purchased for a replacement battery for my generator. It was charged and ready to go out of the box. The 2 bolts that were included for the terminals were a nice surprise.
Great product
Shipped securely
I just reordered my mighty max. I'm replacing the one from 2 years ago. I believe that's pretty good for a battery like this. Always starts my mower right up.
Purchased from Amazon to use in my Polaris quad.
Great item. Just the right size.