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

(6 customer reviews)

From: $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:
7.17 in x 3.03 in x 6.57 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

7.17

Width

3.03

Height

6.57

Weight

11.90 Lbs

Warranty

1 Year

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

  1. 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. Lisa Poleno

    Works great!

  3. Paul G.

    So far so good.

  4. B. Harold

    as advertised and shipped promptly.

  5. Jerry Woods

    works like it suppose to

  6. Monty L. illiams

    very good product, and was priced competitively

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

Mighty Max Battery
Excellent
4.8
Based on 452 reviews
Mighty max brings the battery backup back.
Arrived well packed in unopened sturdy box. Was replacement for identical Mighty Max battery I ordered 2 years ago. Taking 1 star off because didn’t include the needed terminal clips - was able to use the old battery’s clips
Same model fits in each of our four wheelers great product
Replacement for my Murray MT100 riding lawnmower. Murray does not make replacement batteries and you are on your own if the battery goes bad. Bought Murray MT100 in 2023, battery went bad in 1 year and all other Murray replacement batteries are LARGER so it won't fit.This Mighty Max Battery fit the MT100 fine and it starts it perfectly too.
Direct replacement for generac portable electric start generator. Works great.
Received really quick. Boxed well and fit great. Worked like a charm! I would definitely recommend this battery.
As an athletic trainer I rely on our water units every day to provide the water to our athletes. We have over 900 student athletes enrolled, and these units get used daily, so it is imperative these batteries are reliable. On a side note, I also use these batteries on my fishing kayak to power my fish finder. I can use my fish finder for about 20 hours before it turns off. These batteries are great! Highly recommend. I have not had any issues so I haven't spoken to customer service yet, but if they are as good as these batteries have been, I think I am in good hands.
Needed a replacement battery and the manufacturer wanted $50 whereas you only required $20. Made it worth it!
satisfy with price and easy installation.
Arrived in great condition comes with the bolts to attach the wire over all very satisfied
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