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

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Excellent
Mighty Max Battery
Based on 5223 reviews
My battery in my old scooter died. I ordered these replacement batteries. I received them today and it's charging just fine. Thanks!
Very good quality battery! I got a great deal on Amazon. No issues with delivery. Easy install. Highly recommend their batteries. Might have to keep them in mind when I change out my garage battery 😀
Nice set of replacement batteries for my CyberPower 1500AVR unit. Plugged right in just like OEM and fired up at 86%. They’ll do!
The battery was the same one that came with the (Job Rocker Plus that I got in 2017) purchased from Costco
Needed a new Seadoo battery and went straight to Mighty Max. 3 purchase for me.
Ordered the battery for my four wheeler and didn't take long to arrive to my house. Only complaint I have is the postal service crammed the battery into my mailbox and had to work to get it free from inside.
Battery looks great and carries a great charge
Battery was an excellent fit I had to wire the connecters up and seal them, which was no problem and operated Nautica skipper in the pool with ease the battery last quite a long time after charging
Purchased from Amazon. Arrived on time.
Previous battery lasted 4 years. So I repurchased again. Protective plastic covers for terminals were off And original Mighty Max packaging seemed to be previously opened. After initial installation in UPS item appears to be working.